It's been a while since I last had to bother you, yet, I'm once more found in need of your expert help.
A couple weeks back, I was to find our home PC (running XP SP2) infected with a banker trojan and some another malware. (By the time, I thought it all was part of the same infection, yet I was to learn from my brother that it actually was not, as seemingly each of the infections had occurred on different occasions. He told me that he got the other malware in some chat on MSN Messenger, and the trojan, a couple days later, from some Hotmail e-mail with a link to watch some video on some YouTube-alike video hoster, he told, and, when accessing that page, he was prompted to install some additional program in order to be able to watch the video, and, unaware of danger as he always has been, he ran the program, and bam, got the trojan installed.)
Symptoms of the other malware were:
WinPatrol warnings of bpfvmo.exe attempting to set as a startup entry and as a Windows Service (entry name: Print Spooler Service).
Sygate Firewall warning of bpfvmo.exe attempting to connect to bpdyttrlp.yi.org (64.21.149.167) on port 447 / DDM-DFM/RFM protocol.
(bpfvmo.exe was located in C:\WINDOWS\system32\.)
Symptoms of the banker trojan were:
A fake message being displayed (when the blue screen for the desktop loads but still before any icon has appeared) saying that Adobe FlashPlayer 9 ActiveX was being installed. The window message had a cancel button and an installation progress bar which however was static at less than half way through completion.
WinPatrol warning of unsrvc.exe attempting to set as a startup entry.
Sygate Firewall warning of unsrvc.exe attempting to connect to spectrum.iitalia.com (82.196.5.223) on port 80 / HTTP protocol.
(unsrvc.exe was located in C:\WINDOWS\system32\.)
I denied each warning at once, of course. (Yet, don't know whether my brother permitted any at any occasion; he didn't take notice/doesn't recall, he says...) Then again, note that, when denying unsrvc.exe to set as a startup entry via WinPatrol, that would cause that fake message window of FlashPlayer being installed to be closed. Also, still regarding this message window, I did never click its cancel button nor the [X] to close it, since I didn't know whether those might just have some twisted function and instead of cancelling/closing the message window, it might instead fire up some other unwanted/malicious process/action. So, just to be on the safer side, I always got that to close from the WinPatrol warning. (Again, don't know whether my brother ever did otherwise, though...)
As every other time I was to deal with malware infections, so I started out with the preliminary cleaning. Cleaned out all temp files (with CCleaner) which at once deleted one of the malware files, flash_wizard.exe, which was stored among the temporary internet files. (Previous to starting the preliminary cleaning, I ran a search for files with the same creation/modification dates/times as unsrvc.exe and bpfvmo.exe, for reference, for some clue on what other potentially malicious stuff might be spread around, and there was this flash_wizard.exe among the temporary internet files, which had also exactly the same size and file info properties as unsrvc.exe, thus I presumed one to be a copy of the other. As I say, this file was so removed at once, when cleaning all temp files with CCleaner.)
Next ran Ad-Aware + SpyBot + AVG Anti-Spyware + SuperAntiSpyware, all in Safe Mode. (A note, to say that, as I booted to Safe Mode, even then the fake message window of FlashPlayer being installed appeared. I checked on Windows Task Manager, and unsrvc.exe was among the processes running. As I didn't want to risk closing the message window by hitting its cancel button or [X], so I chose to terminate the unsrvc.exe process via Task Manager. This indeed caused the message window to close. I presume, then, that the opposite must also have happened, i.e. when in Normal Mode, when the message window would close after denying unsrvc.exe to set as a startup entry via WinPatrol, I would guess that would equally cause the unsrvc.exe process to be terminated then, perhaps?... I don't recall having checked this in Task Manager, thus I cannot be sure, though...) Ad-Aware and SuperAntiSpyware, both found nothing. SpyBot reported the Print Spooler Service (the respective entry in the registry, if I remember it right), which I chose to fix. AVG Anti-Spyware detected bpfvmo.exe as well as the zip file which my brother received via MSN Messenger and which originally included the malware, plus another 4 entries in System Restore, all of these 6 items being reported as the same infection/malware, and which as well I chose to quarentine.
I rebooted back to Normal Mode afterwards, and neither the file bpfvmo.exe nor the related Print Spooler Service existed anymore when checking via services.msc, and neither Sygate Firewall nor WinPatrol warned about any action of bpfvmo.exe anylonger either. As none of those previous anti-spyware scans had however detected the banker trojan, unsrvc.exe, obviously the fake message window of FlashPlayer being installed still appeared, as so unsrvc.exe was still present as well, of course. When I first took notice of the infection, as per usual at once I submitted the suspicious files for analysis at virustotal.com, and by then, actually not many of the scanners detected unsrvc.exe. So I held on a couple days more, and then ran a new scan on the file. More scanners detected it now, including Panda, so I proceeded to run Panda's online ActiveScan. It found and disinfected 3 items, all of which it reported as being the same malware/infection: unsrvc.exe, install_flash_player.exe which was stored on My Documents (and which, as I had previously checked, also had the same creation/modification date/time as unsrvc.exe, though a different size, and which I presume must have been the program which my brother initially ran and which got the trojan installed), and yet sysstr.sys on C:\WINDOWS\ (I don't recall noticing this one on my search for files with the same creation/modification date/time as unsrvc.exe, but perhaps I overlooked it?...). So, after this cleaning by Panda, I went for a new reboot. My intention was to follow up with a couple other online antivirus scans (F-Secure and Kaspersky) to check if and what else might still be left, yet I thought of rebooting after this cleaning by Panda, also to run a new HJT scan, to check if the entries referring to unsrvc.exe were also already gone by now.
(There was, for sure, at least this entry: F2 - REG:system.ini: UserInit=C:\WINDOWS\system32\unsrvc.exe -runservice. Can't say for sure whether there was also this other: O4 - HKLM\..\Run: [unsrvc] C:\WINDOWS\system32\unsrvc.exe -runservice; sincerely I can't recall it, and then, after all the many similar logs I've gone through in my search for helpful hints over the forums, honestly I can't confirm it anymore, whether this entry was on my own HJT log or not, I'm sorry... Though I'm also in doubt about it, cos of WinPatrol; I mean, if denying unsrvc.exe attempt to set as a startup entry, is it possible that that entry in the registry would still be created nonetheless? Or does it all depend on whether WinPatrol detects that on time to prevent such entry from being created or not? Hmm, that wouldn't make WinPatrol all too efficient in such purpose, then, or?... This really has caused me some doubt, all of a sudden... Then again, I also am not certain whether C:\WINDOWS\system32\unsrvc.exe appeared as a running process on my HJT log, shamingly haven't taken notice of this detail... As I was saying above, I don't recall having confirmed it, in Task Manager, whether unsrvc.exe kept running after closing the fake message window for FlashPlayer via WinPatrol, thus I'm not certain whether the process would still be running when the HJT scan was ran... I'm also in doubt seen that Panda was able to delete the file; would it be possible that Panda had deleted unsrvc.exe in case it was a running process?)
Thing is, when rebooting after this cleaning by Panda, the computer got stuck in the login screen. (Note that, previously, it was not set for no login screen, it would enter Windows directly and load the desktop after the welcome screen.) And as attempting to login, it just automatically logged off again. It would only say "loading your personal definitions", show the blue background (as when it's about to load the desktop) for only a couple seconds, and then automatically logoff, saying "saving your personal definitions", and that was it. And this would happen even in Safe Mode. So, I'm just stuck in this login/logoff loop, and wondering of what step to take next?...
(After some research, I understand now that this is caused by UserInit currently being referred to C:\WINDOWS\system32\unsrvc.exe for login, instead of to C:\WINDOWS\system32\userinit.exe as it should, and as that file C:\WINDOWS\system32\unsrvc.exe isn't there anymore since Panda had it be deleted, so this causes the loop and the impossibility to login at all, correct? I wasn't at all aware of the importance on this UserInit detail, otherwise I wouldn't have dared to proceed with even the preliminary cleaning without asking for guidance from the start... Guess it goes to show that it may just not always be the most advisable, to start off with such preliminary cleaning on our own, to only then come for expert help at the forum... Also I always thought that any antimalware/antivirus scanner would also always "take care" of any related correction necessary to be made to the registry when removing malware, I always trusted this was how "things worked"?... Just painfully learned otherwise, so I see...)
This is also why unfortunately I'm not able to post in here any of the scan logs saved referring to this infection, since I have no access to those as I cannot enter Windows... (Still I'm hoping I'm posting the topic at the correct section of the forum, as everytime before?...)
So, as our home PC was just stuck, so my brother brought his girlfriend's laptop, for me to try and do some research in order to try to solve the problem. Later he also asked me to, since I was at it, run all scanners on the laptop and check whether it too was clean. Obviously, so I started by updating every antimalware/antivirus program, as well as replacing the old HJT 1.99.1 by the new version 2.0.2, to get me a preliminary log for starters. And here came up the biggest of all surprises, as I was to find out that this laptop was also infected and with the very same trojan unsrvc.exe!!!
(I'm wondering whether this may be perhaps a different "version" of the trojan, than that which infected our home PC, as on this laptop there is no such fake message saying that FlashPlayer is being installed, as there was in our home PC... At least, not ever since I've been working with the laptop. Also, I asked both my brother and his girlfriend, whether they had at any time noticed any "sign" that there might be something wrong/that the laptop might be infected, and they said that no, they hadn't noticed anything "unusual"... Hmm... Something odd, though, that I could notice, from checking the respective reports, it's that curiously and by coincidence all antimalware/antivirus scanners have been run, exactly on the same day on which supposedly the infection occurred, and after the time of infection, December 22 at 10:00H, considering the date and time of creation of unsrvc.exe. Ad-Aware, SpyBot, AVG Anti-Spyware and Avast, all were ran on that day, sometime later than that hour. Now, if one takes into consideration that none of those scanners was ran since August (!), and AVG Anti-Spyware even since the last time I myself had run it back in March (!), which certainly denotes that they must not care much on doing periodic checkups for threats, so maybe the fact that they ran all scanners on that day, it perhaps indicates that maybe they did notice some "unusual sign" that something might be wrong, I wonder?... And I wonder then, what that sign might had been and if it might even had been that same fake install message for FlashPlayer... But anyway, whatever... Back to unsrvc.exe, I can however confirm that both the file on this laptop, as that found in our home PC, both do have the same modification date and time, December 14 at 02:30H, so perhaps it's even the very same version of the trojan after all?... In any case, and since it's the same infection on both machines, so I'm hoping it's ok to post both cases in this one thread, to make it more practical both for me to track it all as well as hopefully for you to help me, since this way it'll be one and the same helper "dealing" with my case of this unsrvc.exe trojan infection... I hope I'm doing it right, then?)
So, at this point, I'm also "stuck" with the laptop, uncertain of what to do in order to properly remove this trojan, without coming to the same result as with our home PC (the login/logoff loop)?... (I suppose, first fix the necessary registry entries, and get rid of the malicious files only afterwards, no?...)
A few other details regarding this trojan infection in this laptop.
I also ran Ad-Aware + SpyBot + AVG Anti-Spyware + Avast, just to check whether anything would be found by any of these scanners. Nothing relevant was found at this point, though. (Then again, I did not risk on running Panda ActiveScan on the laptop, though, for obvious reasons!)
On the preliminary HJT log, I noticed on the running processes, along with C:\WINDOWS\system32\unsrvc.exe, also C:\WINDOWS\system32\winsrvc.exe, which I had seen already in various HJT logs across the forums, of other users "complaining" of similar infections.
As later I used the laptop offline, I could notice that, then, only unsrvc.exe appeared in the running processes list in Task Manager, but not winsrvc.exe. Adding to it the fact that this file winsrvc.exe had also been created on the same date as unsrvc.exe, and at about the same time (1 minute later, in fact, at 10:01H), so I assumed winsrvc.exe to be part of the same infection too (and as I could as well confirm afterwards, when analysing the file at virustotal.com), and thus I guessed that the launching of winsrvc.exe should possibly be somehow "dependent" of unsrvc.exe getting connected first?...
At this point at once I installed Sygate Firewall (as this is the firewall we use in our home PC as well, and the one I'm most used to), in order to get unsrvc.exe blocked from getting connected. (This laptop had no other firewall than XP's, by then.)
Though, for somehow "testing" the possible relation between both unsrvc.exe and winsrvc.exe, for one last time so I allowed unsrvc.exe to get connected. Uppon it first connecting to spectrum.iitalia.com 82.196.5.223 on port 80, followingly it made various connections to 70.85.197.2 on port 8080, and it was then that winsrvc.exe popped up in the running processes list. According to the firewall traffic log, winsrvc.exe itself, on the other hand, did not attempt to make any connection. Also, from the time I set Sygate Firewall to permanently block unsrvc.exe, not ever again did winsrvc.exe appear as a running process in Task Manager.
(This also has me wondering on whether the file winsrvc.exe actually existed in our home PC. Panda does still not detect this file as malware, up untill the last analysis at virustotal.com (today), so, the fact alone that it wasn't among the files deleted by Panda ActiveScan when I ran it in our home PC is obviously no "proof" that the file didn't exist; I know. Though actually I also don't think I recall noticing such file, winsrvc.exe, when I ran the search for files with the same creation/modification date/time as unsrvc.exe... Or perhaps I overlooked it too?... But then, the fact that, in the laptop, winsrvc.exe shows to have been created 1 minute after unsrvc.exe, and also the fact that it is lauched only after unsrvc.exe gets connected, I wonder, could it be then that winsrvc.exe eventually only gets created, or even only gets downloaded to the infected computer, only upon unsrvc.exe is able to establish its very first connection?... And, if unsrvc.exe in our home PC had never been able to establish that first connection, assuming that it had ever since been blocked by Sygate Firewall, then it could even be that winsrvc.exe had never gotten into our home PC and it actually didn't exist there, no?... Hmm...)
On the search for files with the same creation/modification date/time as unsrvc.exe, that I had also ran on this laptop, a few other files were found, besides winsrvc.exe as already mentioned. Those other files were: Instalar.exe on the Shared Documents folder C:\Documents and Settings\All Users\Documents\ (this file has the same size as unsrvc.exe and, considering the analysis at virustotal.com, one is to be a copy of the other), sysstr.sys on C:\WINDOWS\, and iospc.sys (0 bytes), drvsrvc.dll (0 bytes), filetemp.tmp and mswinsck.ocx, all the 4 of which on C:\WINDOWS\system32\.
Having submitted filetemp.tmp and mswinsck.ocx to analysis at virustotal.com, everytime it reported nothing found for both files. Checking the properties of mswinsck.ocx, it says to be Microsoft Winsock Control DLL and copyright Microsoft Corporation, also processlibrary.com rates this file to be safe. As for filetemp.tmp, however, I do believe that it must be related with this trojan infection as well. Also sysstr.sys, although up untill now only Panda detects it as malware (currently it detects it as "Suspicious file", whereas previously it would detect it as Trj/Agent.HFM, the same as it has always detected unsrvc.exe), it must certainly be part of the infection too. Note: the first time I checked the properties of sysstr.sys, version tab, the original file name was "iospc.exe" and the internal name was "iospc", whereas on TrendMicro iospc.sys is reported as also being related to this trojan infection. (The file iospc.sys which exists in the laptop is currently a 0 bytes file. Yet perhaps sysstr.sys somehow had/has some relation with it?... Perhaps it's its "substitute" in the current "version" of this trojan infection?...) Also I did open the file sysstr.sys with Notepad (not sure whether that was even recommendable, or if it was a careless action?... I just wanted to check whether there was any "readable" hopefully helpful info in there), and among the "readable" lines there, this one did stand out: \ A F : \ F Y A S S \ P r o g r a m a ç ã o \ S p e c t r u m P r o j e c t 0 8 - 1 2 - 2 0 0 7 \ w s c r n t f y - W o r m \ S p e c t r u m A n t i - G B u s t e r \ A n t i G B u s t e r . v b p. spectrum.iitalia.com being the site to which unsrvc.exe always first attempts to connect, so I'm guessing this to somehow confirm that sysstr.sys must indeed be also related with this trojan infection, no?...
Also, I could notice that, meanwhile, both the properties and also file size of sysstr.sys have changed. As so did the filesize of filetemp.tmp.
I also by now noticed that, when booting while having the modem cable already connected, on the Temporary Internet Files folder, there appears the file url.txt (as TrendMicro also details it), and then almost always also the file config.rar, and sometimes also yet a third file, exe1.rar. (Analysing both rar files at virustotal.com, it reports nothing found for config.rar, and "Suspicious file" for exe1.rar by Panda, the same detection as for sysstr.sys.) Also I could notice that, if the file config.rar is created (downloaded from somewhere, right?), then the modification date and time of filetemp.tmp changes, to the same as the date and time of when the file config.rar has been created. (This is also why I believe that the file filetemp.tmp must indeed be related with this trojan infection too.) The same way, if the file exe1.rar is created (downloaded), then the modification date and time of sysstr.sys also changes, to the same as the date and time of when the file exe1.rar has been created. (If though only config.rar is created, and exe1.rar isn't, then respectively the modification date and time changes only for filetemp.tmp, and not for sysstr.sys.) As if those two rar files in the Temporary Internet Files folder were for updating the "corresponding" files in the Windows and System32 folders or something (config.rar for updating filetemp.tmp and exe1.rar for updating sysstr.sys, respectively)... Curiously, when the modification date and time happens to change for both files, then that of sysstr.sys always is 2 seconds later than that of filetemp.tmp (i.e. seemingly filetemp.tmp always get to be modified ahead of sysstr.sys). Curiously, also, each of the temporary rar files has only 2 bytes less in size than the "corresponding installed file" (latest config.rar is 8562 bytes while filetemp.tmp is currently 8564 bytes, and latest exe1.rar is 69632 bytes while sysstr.sys is currently 69634 bytes); plus, if opening each of those 4 files with Notepad, config.rar and filetemp.tmp appear to have the same "characters" contents except for config.rar having one less "blank line" at the end, and the same goes for exe1.rar and sysstr.sys which also appear to have the same "characters" content except for exe1.rar having one less "blank line" at the end too (so I suppose it's that one less "blank line" which makes the temporary rar files to be 2 bytes less in size than the "corresponding installed file", thus in the end config.rar and exe1.rar must indeed be copies of filetemp.tmp and sysstr.sys, respectively, meant for updating those files, no?)... (Note, however, that, although each time config.rar or exe1.rar are created it does always cause the modification date and time to change respectively for filetemp.tmp and sysstr.sys, I believe it does not necessarily cause the size of filetemp.tmp and the size and/or properties details of sysstr.sys to also change everytime, i.e. it's not like "the contents" of filetemp.tmp and sysstr.sys always gets "updated" everytime config.rar or exe1.rar get into the Temporary Internet Files folder; at least not from what I could notice anyway... Logically the "corresponding installed files", filetemp.tmp and sysstr.sys, must be due to get updated when actual updated versions of config.rar and exe1.rar are "released" by the server site, I guess, of course...)
In any case, for the time being and to be on the safe side, I'm since booting offline everytime, i.e. not having the modem cable connected, and only when the laptop finishes booting and Sygate Firewall icon actually loads in the System Tray, only then I connect the modem cable and get online. (No url.txt or config.rar or exe1.rar, or any other files for the matter, are to appear on the Temporary Internet Files folder, this way.)
(This whole episode, though, has got me wondering again, about whether firewalls do keep a computer protected "from the start" along boot... I mean, how come do those temporary internet files get downloaded, while having the firewall set to start with Windows? Or is it actually Sygate's which doesn't load quite early enough to be able to prevent those files from being downloaded? Hmm, and XP's firewall, if that one's to prevent data from getting in and if it's supposed to provide boot time protection, how come the files get downloaded even if having XP's firewall on? Or is that because the download of those files results of a previous "outgoing action", by unsrvc.exe I assume, and thus XP's firewall doesn't detect it as "potentially malicious" then?... Hmm... Or does the fact that the files get to be downloaded come somehow "in consequence" of the fact that unsrvc.exe is there in the Winlogon\Userinit entry in the registry, making it load before all else including the firewall, and therefore making it capable of downloading those files before any firewall can/could actually prevent it?... Hmm, suddenly I do wonder about all this...)
Here's as well all logs/reports concerning the laptop, for your analysis/reference:
preliminary HJT log
(First scan I ran, after having cleaned the temp stuff with CCleaner various times already, and before knowing the laptop was even infected.)
Logfile of Trend Micro HijackThis v2.0.2
Scan saved at 19:33:18, on 29-12-2007
Platform: Windows XP SP2 (WinNT 5.01.2600)
MSIE: Internet Explorer v6.00 SP2 (6.00.2900.2180)
Boot mode: Normal
Running processes:
C:\WINDOWS\System32\smss.exe
C:\WINDOWS\system32\winlogon.exe
C:\WINDOWS\system32\services.exe
C:\WINDOWS\system32\lsass.exe
C:\WINDOWS\system32\svchost.exe
C:\WINDOWS\System32\svchost.exe
C:\Program Files\Intel\Wireless\Bin\EvtEng.exe
C:\Program Files\Intel\Wireless\Bin\S24EvMon.exe
C:\Program Files\Alwil Software\Avast4\aswUpdSv.exe
C:\Program Files\Alwil Software\Avast4\ashServ.exe
C:\WINDOWS\system32\unsrvc.exe
C:\WINDOWS\Explorer.EXE
C:\WINDOWS\system32\spoolsv.exe
C:\WINDOWS\ATK0100\HControl.exe
C:\WINDOWS\ehome\ehtray.exe
C:\Program Files\ASUSTeK\ASUSDVD\PDVDServ.exe
C:\WINDOWS\RTHDCPL.EXE
C:\Program Files\Synaptics\SynTP\SynTPEnh.exe
C:\Program Files\Wireless Console 2\wcourier.exe
C:\Program Files\Intel\Wireless\bin\ZCfgSvc.exe
C:\Program Files\Intel\Wireless\Bin\ifrmewrk.exe
C:\Program Files\Intel\Wireless\Bin\EOUWiz.exe
C:\Program Files\ASUS\ASUS Live Update\ALU.exe
C:\WINDOWS\sm56hlpr.exe
C:\Program Files\Common Files\Real\Update_OB\realsched.exe
C:\PROGRA~1\ALWILS~1\Avast4\ashDisp.exe
C:\Program Files\Adobe\Reader 8.0\Reader\Reader_sl.exe
C:\WINDOWS\system32\ctfmon.exe
C:\Program Files\Google\GoogleToolbarNotifier\GoogleToolbarNotifier.exe
C:\Program Files\Microsoft ActiveSync\Wcescomm.exe
C:\Program Files\ASUS\Asus ChkMail\ChkMail.exe
C:\PROGRA~1\MI3AA1~1\rapimgr.exe
C:\Program Files\SpywareGuard\sgmain.exe
C:\Program Files\SpywareGuard\sgbhp.exe
C:\WINDOWS\ATK0100\ATKOSD.exe
C:\Program Files\Grisoft\AVG Anti-Spyware 7.5\guard.exe
C:\WINDOWS\eHome\ehRecvr.exe
C:\WINDOWS\eHome\ehSched.exe
C:\Program Files\Common Files\Microsoft Shared\VS7Debug\mdm.exe
C:\WINDOWS\system32\nvsvc32.exe
C:\Program Files\Intel\Wireless\Bin\RegSrvc.exe
C:\Program Files\Alwil Software\Avast4\ashMaiSv.exe
C:\Program Files\Alwil Software\Avast4\ashWebSv.exe
C:\WINDOWS\system32\dllhost.exe
C:\WINDOWS\eHome\ehmsas.exe
C:\PROGRA~1\Intel\Wireless\Bin\Dot1XCfg.exe
C:\WINDOWS\system32\winsrvc.exe
C:\Program Files\Trend Micro\HijackThis\HijackThis.exe
R0 - HKCU\Software\Microsoft\Internet Explorer\Main,Start Page = http://www.google.pt/
R1 - HKLM\Software\Microsoft\Internet Explorer\Main,Default_Page_URL = http://www.asus.com
F2 - REG:system.ini: UserInit=C:\WINDOWS\system32\unsrvc.exe -runservice
O2 - BHO: Adobe PDF Reader Link Helper - {06849E9F-C8D7-4D59-B87D-784B7D6BE0B3} - C:\Program Files\Common Files\Adobe\Acrobat\ActiveX\AcroIEHelper.dll
O2 - BHO: SpywareGuard Download Protection - {4A368E80-174F-4872-96B5-0B27DDD11DB2} - C:\Program Files\SpywareGuard\dlprotect.dll
O2 - BHO: (no name) - {53707962-6F74-2D53-2644-206D7942484F} - C:\PROGRA~1\SPYBOT~1\SDHelper.dll
O2 - BHO: SSVHelper Class - {761497BB-D6F0-462C-B6EB-D4DAF1D92D43} - C:\Program Files\Java\jre1.6.0_03\bin\ssv.dll
O2 - BHO: (no name) - {7E853D72-626A-48EC-A868-BA8D5E23E045} - (no file)
O2 - BHO: Windows Live Sign-in Helper - {9030D464-4C02-4ABF-8ECC-5164760863C6} - C:\Program Files\Common Files\Microsoft Shared\Windows Live\WindowsLiveLogin.dll
O2 - BHO: Google Toolbar Helper - {AA58ED58-01DD-4d91-8333-CF10577473F7} - c:\program files\google\googletoolbar3.dll
O2 - BHO: Google Toolbar Notifier BHO - {AF69DE43-7D58-4638-B6FA-CE66B5AD205D} - C:\Program Files\Google\GoogleToolbarNotifier\2.0.301.7164\swg.dll
O3 - Toolbar: &Google - {2318C2B1-4965-11d4-9B18-009027A5CD4F} - c:\program files\google\googletoolbar3.dll
O4 - HKLM\..\Run: [HControl] C:\WINDOWS\ATK0100\HControl.exe
O4 - HKLM\..\Run: [NvCplDaemon] RUNDLL32.EXE C:\WINDOWS\system32\NvCpl.dll,NvStartup
O4 - HKLM\..\Run: [nwiz] nwiz.exe /install
O4 - HKLM\..\Run: [ehTray] C:\WINDOWS\ehome\ehtray.exe
O4 - HKLM\..\Run: [RemoteControl] "C:\Program Files\ASUSTeK\ASUSDVD\PDVDServ.exe"
O4 - HKLM\..\Run: [NeroFilterCheck] C:\WINDOWS\system32\NeroCheck.exe
O4 - HKLM\..\Run: [High Definition Audio Property Page Shortcut] HDAShCut.exe
O4 - HKLM\..\Run: [RTHDCPL] RTHDCPL.EXE
O4 - HKLM\..\Run: [Alcmtr] ALCMTR.EXE
O4 - HKLM\..\Run: [SynTPEnh] C:\Program Files\Synaptics\SynTP\SynTPEnh.exe
O4 - HKLM\..\Run: [Wireless Console 2] C:\Program Files\Wireless Console 2\wcourier.exe
O4 - HKLM\..\Run: [IntelZeroConfig] "C:\Program Files\Intel\Wireless\bin\ZCfgSvc.exe"
O4 - HKLM\..\Run: [IntelWireless] "C:\Program Files\Intel\Wireless\Bin\ifrmewrk.exe" /tf Intel PROSet/Wireless
O4 - HKLM\..\Run: [EOUApp] "C:\Program Files\Intel\Wireless\Bin\EOUWiz.exe"
O4 - HKLM\..\Run: [Power_Gear] C:\Program Files\ASUS\Power4 Gear\BatteryLife.exe 1
O4 - HKLM\..\Run: [ASUS Live Update] C:\Program Files\ASUS\ASUS Live Update\ALU.exe
O4 - HKLM\..\Run: [ABLKSR] C:\WINDOWS\ABLKSR\ABLKSR.exe
O4 - HKLM\..\Run: [SMSERIAL] sm56hlpr.exe
O4 - HKLM\..\Run: [LXCFCATS] rundll32 C:\WINDOWS\System32\spool\DRIVERS\W32X86\3\LXCFtime.dll,_RunDLLEntry@16
O4 - HKLM\..\Run: [PelSetupRun] E:\setup.exe
O4 - HKLM\..\Run: [TkBellExe] "C:\Program Files\Common Files\Real\Update_OB\realsched.exe" -osboot
O4 - HKLM\..\Run: [avast!] C:\PROGRA~1\ALWILS~1\Avast4\ashDisp.exe
O4 - HKLM\..\Run: [QuickTime Task] "C:\Program Files\QuickTime\qttask.exe" -atboottime
O4 - HKLM\..\Run: [Adobe Reader Speed Launcher] "C:\Program Files\Adobe\Reader 8.0\Reader\Reader_sl.exe"
O4 - HKLM\..\Run: [unsrvc] C:\WINDOWS\system32\unsrvc.exe -runservice
O4 - HKCU\..\Run: [ctfmon.exe] C:\WINDOWS\system32\ctfmon.exe
O4 - HKCU\..\Run: [swg] C:\Program Files\Google\GoogleToolbarNotifier\GoogleToolbarNotifier.exe
O4 - HKCU\..\Run: [H/PC Connection Agent] "C:\Program Files\Microsoft ActiveSync\Wcescomm.exe"
O4 - HKUS\S-1-5-18\..\Run: [CTFMON.EXE] C:\WINDOWS\system32\CTFMON.EXE (User 'SYSTEM')
O4 - HKUS\.DEFAULT\..\Run: [CTFMON.EXE] C:\WINDOWS\system32\CTFMON.EXE (User 'Default user')
O4 - Startup: SpywareGuard.lnk = C:\Program Files\SpywareGuard\sgmain.exe
O4 - Global Startup: ASUS ChkMail.lnk = C:\Program Files\ASUS\Asus ChkMail\ChkMail.exe
O4 - Global Startup: Microsoft Office.lnk = C:\Program Files\Microsoft Office\Office10\OSA.EXE
O8 - Extra context menu item: E&xportar para o Microsoft Excel - res://C:\PROGRA~1\MICROS~2\Office10\EXCEL.EXE/3000
O9 - Extra button: (no name) - {08B0E5C0-4FCB-11CF-AAA5-00401C608501} - C:\Program Files\Java\jre1.6.0_03\bin\ssv.dll
O9 - Extra 'Tools' menuitem: Sun Java Console - {08B0E5C0-4FCB-11CF-AAA5-00401C608501} - C:\Program Files\Java\jre1.6.0_03\bin\ssv.dll
O14 - IERESET.INF: START_PAGE_URL=http://www.asus.com
O23 - Service: avast! iAVS4 Control Service (aswUpdSv) - ALWIL Software - C:\Program Files\Alwil Software\Avast4\aswUpdSv.exe
O23 - Service: avast! Antivirus - ALWIL Software - C:\Program Files\Alwil Software\Avast4\ashServ.exe
O23 - Service: avast! Mail Scanner - ALWIL Software - C:\Program Files\Alwil Software\Avast4\ashMaiSv.exe
O23 - Service: avast! Web Scanner - ALWIL Software - C:\Program Files\Alwil Software\Avast4\ashWebSv.exe
O23 - Service: AVG Anti-Spyware Guard - GRISOFT s.r.o. - C:\Program Files\Grisoft\AVG Anti-Spyware 7.5\guard.exe
O23 - Service: Intel® PROSet/Wireless Event Log (EvtEng) - Intel Corporation - C:\Program Files\Intel\Wireless\Bin\EvtEng.exe
O23 - Service: Google Updater Service (gusvc) - Google - C:\Program Files\Google\Common\Google Updater\GoogleUpdaterService.exe
O23 - Service: iPod Service - Unknown owner - C:\Program Files\iPod\bin\iPodService.exe (file missing)
O23 - Service: lxcf_device - - C:\WINDOWS\system32\lxcfcoms.exe
O23 - Service: NVIDIA Display Driver Service (NVSvc) - NVIDIA Corporation - C:\WINDOWS\system32\nvsvc32.exe
O23 - Service: Intel® PROSet/Wireless Registry Service (RegSrvc) - Intel Corporation - C:\Program Files\Intel\Wireless\Bin\RegSrvc.exe
O23 - Service: Intel® PROSet/Wireless Service (S24EventMonitor) - Intel Corporation - C:\Program Files\Intel\Wireless\Bin\S24EvMon.exe
--
End of file - 7988 bytes
----------
latest HJT log
Logfile of Trend Micro HijackThis v2.0.2
Scan saved at 14:05:03, on 11-01-2008
Platform: Windows XP SP2 (WinNT 5.01.2600)
MSIE: Internet Explorer v6.00 SP2 (6.00.2900.2180)
Boot mode: Normal
Running processes:
C:\WINDOWS\System32\smss.exe
C:\WINDOWS\system32\winlogon.exe
C:\WINDOWS\system32\services.exe
C:\WINDOWS\system32\lsass.exe
C:\WINDOWS\system32\svchost.exe
C:\WINDOWS\System32\svchost.exe
C:\Program Files\Intel\Wireless\Bin\EvtEng.exe
C:\Program Files\Intel\Wireless\Bin\S24EvMon.exe
C:\Program Files\Sygate\SPF\smc.exe
C:\Program Files\Alwil Software\Avast4\aswUpdSv.exe
C:\Program Files\Alwil Software\Avast4\ashServ.exe
C:\WINDOWS\system32\unsrvc.exe
C:\WINDOWS\Explorer.EXE
C:\WINDOWS\system32\spoolsv.exe
C:\Program Files\Grisoft\AVG Anti-Spyware 7.5\guard.exe
C:\WINDOWS\eHome\ehRecvr.exe
C:\WINDOWS\eHome\ehSched.exe
C:\WINDOWS\ATK0100\HControl.exe
C:\Program Files\Common Files\Microsoft Shared\VS7Debug\mdm.exe
C:\WINDOWS\system32\nvsvc32.exe
C:\WINDOWS\ehome\ehtray.exe
C:\Program Files\Intel\Wireless\Bin\RegSrvc.exe
C:\Program Files\ASUSTeK\ASUSDVD\PDVDServ.exe
C:\WINDOWS\RTHDCPL.EXE
C:\WINDOWS\system32\svchost.exe
C:\Program Files\Synaptics\SynTP\SynTPEnh.exe
C:\Program Files\Wireless Console 2\wcourier.exe
C:\Program Files\Intel\Wireless\bin\ZCfgSvc.exe
C:\Program Files\Intel\Wireless\Bin\ifrmewrk.exe
C:\Program Files\Intel\Wireless\Bin\EOUWiz.exe
C:\Program Files\ASUS\ASUS Live Update\ALU.exe
C:\WINDOWS\sm56hlpr.exe
C:\Program Files\Common Files\Real\Update_OB\realsched.exe
C:\PROGRA~1\ALWILS~1\Avast4\ashDisp.exe
C:\Program Files\Adobe\Reader 8.0\Reader\Reader_sl.exe
C:\Program Files\Lexmark 2400 Series\lxcrmon.exe
C:\Program Files\Lexmark 2400 Series\ezprint.exe
C:\WINDOWS\ATK0100\ATKOSD.exe
C:\WINDOWS\system32\ctfmon.exe
C:\Program Files\Google\GoogleToolbarNotifier\GoogleToolbarNotifier.exe
C:\Program Files\Microsoft ActiveSync\Wcescomm.exe
C:\Program Files\ASUS\Asus ChkMail\ChkMail.exe
C:\Program Files\SpywareGuard\sgmain.exe
C:\PROGRA~1\MI3AA1~1\rapimgr.exe
C:\PROGRA~1\Intel\Wireless\Bin\Dot1XCfg.exe
C:\Program Files\Alwil Software\Avast4\ashMaiSv.exe
C:\Program Files\SpywareGuard\sgbhp.exe
C:\Program Files\Alwil Software\Avast4\ashWebSv.exe
C:\WINDOWS\system32\dllhost.exe
C:\WINDOWS\system32\lxcrcoms.exe
C:\WINDOWS\eHome\ehmsas.exe
C:\WINDOWS\system32\wuauclt.exe
C:\Program Files\Trend Micro\HijackThis\HijackThis.exe
C:\Program Files\Alwil Software\Avast4\setup\avast.setup
R0 - HKCU\Software\Microsoft\Internet Explorer\Main,Start Page = http://www.google.pt/
R1 - HKLM\Software\Microsoft\Internet Explorer\Main,Default_Page_URL = http://www.asus.com
F2 - REG:system.ini: UserInit=C:\WINDOWS\system32\unsrvc.exe -runservice
O2 - BHO: Adobe PDF Reader Link Helper - {06849E9F-C8D7-4D59-B87D-784B7D6BE0B3} - C:\Program Files\Common Files\Adobe\Acrobat\ActiveX\AcroIEHelper.dll
O2 - BHO: SpywareGuard Download Protection - {4A368E80-174F-4872-96B5-0B27DDD11DB2} - C:\Program Files\SpywareGuard\dlprotect.dll
O2 - BHO: (no name) - {53707962-6F74-2D53-2644-206D7942484F} - C:\PROGRA~1\SPYBOT~1\SDHelper.dll
O2 - BHO: SSVHelper Class - {761497BB-D6F0-462C-B6EB-D4DAF1D92D43} - C:\Program Files\Java\jre1.6.0_03\bin\ssv.dll
O2 - BHO: (no name) - {7E853D72-626A-48EC-A868-BA8D5E23E045} - (no file)
O2 - BHO: Windows Live Sign-in Helper - {9030D464-4C02-4ABF-8ECC-5164760863C6} - C:\Program Files\Common Files\Microsoft Shared\Windows Live\WindowsLiveLogin.dll
O2 - BHO: Google Toolbar Helper - {AA58ED58-01DD-4d91-8333-CF10577473F7} - c:\program files\google\googletoolbar3.dll
O2 - BHO: Google Toolbar Notifier BHO - {AF69DE43-7D58-4638-B6FA-CE66B5AD205D} - C:\Program Files\Google\GoogleToolbarNotifier\2.0.301.7164\swg.dll
O3 - Toolbar: &Google - {2318C2B1-4965-11d4-9B18-009027A5CD4F} - c:\program files\google\googletoolbar3.dll
O4 - HKLM\..\Run: [HControl] C:\WINDOWS\ATK0100\HControl.exe
O4 - HKLM\..\Run: [NvCplDaemon] RUNDLL32.EXE C:\WINDOWS\system32\NvCpl.dll,NvStartup
O4 - HKLM\..\Run: [nwiz] nwiz.exe /install
O4 - HKLM\..\Run: [ehTray] C:\WINDOWS\ehome\ehtray.exe
O4 - HKLM\..\Run: [RemoteControl] "C:\Program Files\ASUSTeK\ASUSDVD\PDVDServ.exe"
O4 - HKLM\..\Run: [NeroFilterCheck] C:\WINDOWS\system32\NeroCheck.exe
O4 - HKLM\..\Run: [High Definition Audio Property Page Shortcut] HDAShCut.exe
O4 - HKLM\..\Run: [RTHDCPL] RTHDCPL.EXE
O4 - HKLM\..\Run: [Alcmtr] ALCMTR.EXE
O4 - HKLM\..\Run: [SynTPEnh] C:\Program Files\Synaptics\SynTP\SynTPEnh.exe
O4 - HKLM\..\Run: [Wireless Console 2] C:\Program Files\Wireless Console 2\wcourier.exe
O4 - HKLM\..\Run: [IntelZeroConfig] "C:\Program Files\Intel\Wireless\bin\ZCfgSvc.exe"
O4 - HKLM\..\Run: [IntelWireless] "C:\Program Files\Intel\Wireless\Bin\ifrmewrk.exe" /tf Intel PROSet/Wireless
O4 - HKLM\..\Run: [EOUApp] "C:\Program Files\Intel\Wireless\Bin\EOUWiz.exe"
O4 - HKLM\..\Run: [Power_Gear] C:\Program Files\ASUS\Power4 Gear\BatteryLife.exe 1
O4 - HKLM\..\Run: [ASUS Live Update] C:\Program Files\ASUS\ASUS Live Update\ALU.exe
O4 - HKLM\..\Run: [ABLKSR] C:\WINDOWS\ABLKSR\ABLKSR.exe
O4 - HKLM\..\Run: [SMSERIAL] sm56hlpr.exe
O4 - HKLM\..\Run: [PelSetupRun] E:\setup.exe
O4 - HKLM\..\Run: [TkBellExe] "C:\Program Files\Common Files\Real\Update_OB\realsched.exe" -osboot
O4 - HKLM\..\Run: [avast!] C:\PROGRA~1\ALWILS~1\Avast4\ashDisp.exe
O4 - HKLM\..\Run: [QuickTime Task] "C:\Program Files\QuickTime\qttask.exe" -atboottime
O4 - HKLM\..\Run: [Adobe Reader Speed Launcher] "C:\Program Files\Adobe\Reader 8.0\Reader\Reader_sl.exe"
O4 - HKLM\..\Run: [unsrvc] C:\WINDOWS\system32\unsrvc.exe -runservice
O4 - HKLM\..\Run: [SmcService] C:\PROGRA~1\Sygate\SPF\smc.exe -startgui
O4 - HKLM\..\Run: [lxcrmon.exe] "C:\Program Files\Lexmark 2400 Series\lxcrmon.exe"
O4 - HKLM\..\Run: [EzPrint] "C:\Program Files\Lexmark 2400 Series\ezprint.exe"
O4 - HKLM\..\Run: [FaxCenterServer] "C:\Program Files\Lexmark Fax Solutions\fm3032.exe" /s
O4 - HKLM\..\Run: [LXCRCATS] rundll32 C:\WINDOWS\System32\spool\DRIVERS\W32X86\3\LXCRtime.dll,_RunDLLEntry@16
O4 - HKLM\..\Run: [LXCFCATS] rundll32 C:\WINDOWS\System32\spool\DRIVERS\W32X86\3\LXCFtime.dll,_RunDLLEntry@16
O4 - HKCU\..\Run: [ctfmon.exe] C:\WINDOWS\system32\ctfmon.exe
O4 - HKCU\..\Run: [swg] C:\Program Files\Google\GoogleToolbarNotifier\GoogleToolbarNotifier.exe
O4 - HKCU\..\Run: [H/PC Connection Agent] "C:\Program Files\Microsoft ActiveSync\Wcescomm.exe"
O4 - HKUS\S-1-5-18\..\Run: [CTFMON.EXE] C:\WINDOWS\system32\CTFMON.EXE (User 'SYSTEM')
O4 - HKUS\.DEFAULT\..\Run: [CTFMON.EXE] C:\WINDOWS\system32\CTFMON.EXE (User 'Default user')
O4 - Startup: SpywareGuard.lnk = C:\Program Files\SpywareGuard\sgmain.exe
O4 - Global Startup: ASUS ChkMail.lnk = C:\Program Files\ASUS\Asus ChkMail\ChkMail.exe
O4 - Global Startup: Microsoft Office.lnk = C:\Program Files\Microsoft Office\Office10\OSA.EXE
O8 - Extra context menu item: E&xportar para o Microsoft Excel - res://C:\PROGRA~1\MICROS~2\Office10\EXCEL.EXE/3000
O9 - Extra button: (no name) - {08B0E5C0-4FCB-11CF-AAA5-00401C608501} - C:\Program Files\Java\jre1.6.0_03\bin\ssv.dll
O9 - Extra 'Tools' menuitem: Sun Java Console - {08B0E5C0-4FCB-11CF-AAA5-00401C608501} - C:\Program Files\Java\jre1.6.0_03\bin\ssv.dll
O14 - IERESET.INF: START_PAGE_URL=http://www.asus.com
O16 - DPF: {0EB0E74A-2A76-4AB3-A7FB-9BD8C29F7F75} (CKAVWebScan Object) - http://www.kaspersky.com/kos/eng/partner/d...can_unicode.cab
O23 - Service: avast! iAVS4 Control Service (aswUpdSv) - ALWIL Software - C:\Program Files\Alwil Software\Avast4\aswUpdSv.exe
O23 - Service: avast! Antivirus - ALWIL Software - C:\Program Files\Alwil Software\Avast4\ashServ.exe
O23 - Service: avast! Mail Scanner - ALWIL Software - C:\Program Files\Alwil Software\Avast4\ashMaiSv.exe
O23 - Service: avast! Web Scanner - ALWIL Software - C:\Program Files\Alwil Software\Avast4\ashWebSv.exe
O23 - Service: AVG Anti-Spyware Guard - GRISOFT s.r.o. - C:\Program Files\Grisoft\AVG Anti-Spyware 7.5\guard.exe
O23 - Service: Intel® PROSet/Wireless Event Log (EvtEng) - Intel Corporation - C:\Program Files\Intel\Wireless\Bin\EvtEng.exe
O23 - Service: Google Updater Service (gusvc) - Google - C:\Program Files\Google\Common\Google Updater\GoogleUpdaterService.exe
O23 - Service: iPod Service - Unknown owner - C:\Program Files\iPod\bin\iPodService.exe (file missing)
O23 - Service: lxcf_device - - C:\WINDOWS\system32\lxcfcoms.exe
O23 - Service: lxcr_device - - C:\WINDOWS\system32\lxcrcoms.exe
O23 - Service: NVIDIA Display Driver Service (NVSvc) - NVIDIA Corporation - C:\WINDOWS\system32\nvsvc32.exe
O23 - Service: Intel® PROSet/Wireless Registry Service (RegSrvc) - Intel Corporation - C:\Program Files\Intel\Wireless\Bin\RegSrvc.exe
O23 - Service: Intel® PROSet/Wireless Service (S24EventMonitor) - Intel Corporation - C:\Program Files\Intel\Wireless\Bin\S24EvMon.exe
O23 - Service: Sygate Personal Firewall (SmcService) - Sygate Technologies, Inc. - C:\Program Files\Sygate\SPF\smc.exe
--
End of file - 9023 bytes
----------
latest Kaspersky Online Virus Scanner report
(I'm including only the entries referring to infected files, to make it shorter. If those referring to all of the locked objects are needed too, though, please let me know, and I'll post the full report promptly.)
-------------------------------------------------------------------------------
KASPERSKY ONLINE SCANNER REPORT
Friday, January 11, 2008 1:14:50 PM
Operating System: Microsoft Windows XP Professional, Service Pack 2 (Build 2600)
Kaspersky Online Scanner version: 5.0.98.0
Kaspersky Anti-Virus database last update: 11/01/2008
Kaspersky Anti-Virus database records: 507550
-------------------------------------------------------------------------------
Scan Settings:
Scan using the following antivirus database: extended
Scan Archives: true
Scan Mail Bases: true
Scan Target - My Computer:
C:\
D:\
E:\
Scan Statistics:
Total number of scanned objects: 68300
Number of viruses found: 1
Number of infected objects: 8
Number of suspicious objects: 0
Duration of the scan process: 00:40:40
Infected Object Name / Virus Name / Last Action
C:\WINDOWS\system32\unsrvc.exe Infected: Trojan-Downloader.Win32.VB.bzh skipped
C:\WINDOWS\system32\winsrvc.exe Infected: Trojan-Downloader.Win32.VB.bzh skipped
C:\Documents and Settings\All Users\Documents\Instalar.exe Infected: Trojan-Downloader.Win32.VB.bzh skipped
C:\System Volume Information\_restore{CC2C7A74-EDAE-4F7B-85A2-D4751CC14365}\RP60\A0012364.exe Infected: Trojan-Downloader.Win32.VB.bzh skipped
C:\System Volume Information\_restore{CC2C7A74-EDAE-4F7B-85A2-D4751CC14365}\RP60\A0012461.exe Infected: Trojan-Downloader.Win32.VB.bzh skipped
C:\System Volume Information\_restore{CC2C7A74-EDAE-4F7B-85A2-D4751CC14365}\RP61\A0012503.exe Infected: Trojan-Downloader.Win32.VB.bzh skipped
C:\System Volume Information\_restore{CC2C7A74-EDAE-4F7B-85A2-D4751CC14365}\RP61\A0012555.exe Infected: Trojan-Downloader.Win32.VB.bzh skipped
C:\System Volume Information\_restore{CC2C7A74-EDAE-4F7B-85A2-D4751CC14365}\RP61\A0012590.exe Infected: Trojan-Downloader.Win32.VB.bzh skipped
Scan process completed.
----------
(For all VirusTotal reports, I'm as well only including the results for the scanners which actually detect each of the analysed files, for keeping it more practical.)
latest report of VirusTotal for unsrvc.exe
(As previously mentioned, the same report is given for Instalar.exe which is identified at VirusTotal as being the same file.)
File unsrvc.exe received on 01.11.2008 14:27:53 (CET)
Antivirus Version Last Update Result
AntiVir 7.6.0.46 2008.01.11 TR/Dldr.VB.bzh.1
AVG 7.5.0.516 2008.01.11 Downloader.Generic6.AAMU
BitDefender 7.2 2008.01.11 Trojan.Downloader.VB.VLM
CAT-QuickHeal 9.00 2008.01.10 TrojanDownloader.VB.bzh
ClamAV 0.91.2 2008.01.11 Trojan.Downloader-20164
DrWeb 4.44.0.09170 2008.01.11 modification of BackDoor.Generic.1629
Ewido 4.0 2008.01.11 Downloader.VB.bzh
FileAdvisor 1 2008.01.11 High threat detected
Fortinet 3.14.0.0 2008.01.11 W32/VB.BZH!tr.dldr
F-Secure 6.70.13030.0 2008.01.11 Trojan-Downloader.Win32.VB.bzh
Ikarus T3.1.1.20 2008.01.11 Trojan-Downloader.Win32.VB.bzh
Kaspersky 7.0.0.125 2008.01.11 Trojan-Downloader.Win32.VB.bzh
McAfee 5204 2008.01.10 Generic PWS.o
Microsoft 1.3109 2008.01.11 TrojanDownloader:Win32/VB.KF
NOD32v2 2783 2008.01.11 a variant of Win32/VB.NKM
Norman 5.80.02 2008.01.10 W32/DLoader.ESHA
Panda 9.0.0.4 2008.01.11 Trj/Agent.HFM
Prevx1 V2 2008.01.11 Heuristic: Suspicious Downloader
Symantec 10 2008.01.11 Downloader
TheHacker 6.2.9.186 2008.01.11 Trojan/Downloader.VB.bzh
VBA32 3.12.2.5 2008.01.11 Trojan-Downloader.Win32.VB.bzh
Webwasher-Gateway 6.6.2 2008.01.11 Trojan.Dldr.VB.bzh.1
Additional information
File size: 323584 bytes
MD5: 112fc78ad176d7076225450973ff1c7e
SHA1: ea806cc7040242c1c4aba5a55c99ccdc7a542918
PEiD: -
Bit9 info: http://fileadvisor.bit9.com/services/extin...225450973ff1c7e
Prevx info: http://info.prevx.com/aboutprogramtext.asp...EB606003EB66A0E
----------
latest report of VirusTotal for winsrvc.exe
File winsrvc.exe received on 01.11.2008 14:39:47 (CET)
Antivirus Version Last Update Result
AntiVir 7.6.0.46 2008.01.11 TR/Dldr.VB.bzh
AVG 7.5.0.516 2008.01.11 Generic9.AGFE
CAT-QuickHeal 9.00 2008.01.10 TrojanDownloader.VB.bzh
ClamAV 0.91.2 2008.01.11 Trojan.Downloader-18692
DrWeb 4.44.0.09170 2008.01.11 modification of BackDoor.Generic.981
Fortinet 3.14.0.0 2008.01.11 W32/VB.BZH!tr.dldr
F-Secure 6.70.13030.0 2008.01.11 Trojan-Downloader.Win32.VB.bzh
Ikarus T3.1.1.20 2008.01.11 Trojan-Downloader.Win32.VB.bzh
Kaspersky 7.0.0.125 2008.01.11 Trojan-Downloader.Win32.VB.bzh
NOD32v2 2783 2008.01.11 Win32/VB.NKH
Norman 5.80.02 2008.01.10 W32/DLoader.ETGQ
Prevx1 V2 2008.01.11 Heuristic: Suspicious File With Covert Attributes
Symantec 10 2008.01.11 Downloader
TheHacker 6.2.9.186 2008.01.11 Trojan/Downloader.VB.bzh
VBA32 3.12.2.5 2008.01.11 Trojan-Downloader.Win32.VB.bzh
Webwasher-Gateway 6.6.2 2008.01.11 Trojan.Dldr.VB.bzh
Additional information
File size: 45058 bytes
MD5: 5e12f6def4b5b5e3341eedb0a30c1341
SHA1: f770b986b1d6c93647046a18bc9f2a2ca7ce677c
PEiD: -
Prevx info: http://info.prevx.com/aboutprogramtext.asp...6B76F00DD3EB47C
----------
latest report of VirusTotal for sysstr.sys
File sysstr.sys received on 01.11.2008 14:56:01 (CET)
Antivirus Version Last Update Result
Panda 9.0.0.4 2008.01.11 Suspicious file
Additional information
File size: 69634 bytes
MD5: 34e785ab8a6173f15fed31aa47a1a8f7
SHA1: 2741e8606b17212f11a0af0a0b9fdfa10db800e2
PEiD: -
(As mentioned before, Panda previously detected this file as Trj/Agent.HFM.)
----------
Ad-Aware info on the processes unsrvc.exe and winsrvc.exe
[unsrvc.exe]
FilePath : C:\WINDOWS\system32\
ProcessID : 896
ThreadCreationTime : 05-01-2008 20:21:18
BasePriority : Normal
FileVersion : 5.01.2600
ProductVersion : 5.01.2600
ProductName : Microsoft Windows Operation System
CompanyName : Microsoft Corporation
InternalName : setup_
OriginalFilename : setup_.exe
(Mind the "Microsoft Windows Operation System", lol...)
[winsrvc.exe]
FilePath : C:\WINDOWS\system32\
ProcessID : 2588
ThreadCreationTime : 22-12-2007 10:03:12
BasePriority : Normal
FileVersion : 3.00
ProductVersion : 3.00
ProductName : Protect Service
CompanyName : Home
InternalName : protect
OriginalFilename : protect.rar
(On a side note, I've seen in other threads in other forums, other users, who complained to be infected with this trojan too, mentioning that such a file protect.rar was found among the temporary internet files...)
----------
Properties (Version tab) info details for sysstr.sys
File version: 3.3.0.4 (previously: 1.0.0.0)
Description: Deecttonee (previously: Dectone)
Copyright: DDeeccttooncee (previously: Dectone)
Comments: DDecctonne (previously: Dectone)
Company: DDecctonne SSollutiionnss (previously: Dectone Solutions)
Language: English (EUA)
Legal trademarks: Ddecttonee (previously: Dectone)
Original file name: syscom.exe (previously: sysstr.exe / before that: iospc.exe)
Product name: AntiGBuster (previously: Dectone)
Internal name: syscom (previosuly: sysstr / before that: iospc)
File version: 3.03.0004 (previously: 1.00)
Product version: 3.03.0004 (previously: 1.00)
----------
So, as I was saying above, I wonder then what to do, in order to properly remove this trojan, without coming to the same result as with our home PC (the login/logoff loop)?... First fix the necessary registry entries, and get rid of the malicious files only afterwards; is that the correct way to go, then?... I'd very much appreciate your expert guidance, and thanks already, for all help. (My doubts at this point are: If I must first fix those two entries in HJT which refer to unsrvc.exe, the F2 and the 04 entries, then should I reboot afterwards, to only then remove the malicious files? What if rebooting without having the malicious files removed makes them recreate those registry entries? Of course one can try, and check whether the registry entries would come back after reboot, when the malicious files are still there... Should that be the way, then? Or must the registry fixes be made and the malicious files be removed, everything at once, and only then reboot? Remove the malicious files manually? In Safe Mode? Set them to be removed on reboot with HJT? With KillBox? Have a combination of online virus scanners remove them (those which they detect)? Back about that F2 entry in HJT, fix it in HJT? Manually edit the value for that key, in regedit? Apply a regfix such as that provided on this help page? My concern is if, by fixing this F2 entry in HJT, it makes HJT reset the value of the key to what it should be by default, "Userinit"="C:\\WINDOWS\\system32\\userinit.exe,", or? Or does HJT only delete the malicious value, "Userinit"="C:\\WINDOWS\\system32\\unsrvc.exe -runservice", assuming that that must be there in addition to the default, and thus causing the value for Userinit to actually become "empty"? My fear comes from the fact that, currently, the value for Userinit is really only this: "C:\\WINDOWS\\system32\\unsrvc.exe -runservice", this isn't there in addition to the default value nor anything, there's really only "C:\\WINDOWS\\system32\\unsrvc.exe -runservice". If fixing this via HJT, will the default value "C:\\WINDOWS\\system32\\userinit.exe," be restored for sure, then, yes? Or?... Oh dear, I'm really sorry for all the, I suppose, silly questioning, but I just really am afraid of any step going wrong and that I may end up with also this laptop "stuck" in such login/logoff loop...
----------
And back to the start then, back to our home PC stuck in the login/logoff loop, (which is also my most main concern after all), what step must I take next, then, in order to solve this situation, I wonder?... When I was first faced with the situation, at once I panicked, as at once my thought was that this was certainly a "no return" situation, and so I thought that the only "solution" to such a case should innevitably be having to format C:\... Moreover, after some research for other cases of such trojan infection, the few pages found by the time also didn't sound too cheering (various other users had too come to the same login/logoff loop, and eventually ended up formatting; even a helper in a forum plainly replied to someone "if you can't start the system, then I see no other solution than to format")...
(At once, at this point, a doubt came up, and I wonder if it's ok to share it here?... Well, you see, this computer was bought second-hand and, while it has only one physical hard-drive, there were two "local disks" on My Computer, disk C:\ and disk F:\. I suppose then that those were two partitions in which the physical hard-drive must have been "divided" when it was prepared for installing the OS... correct?... I really am pretty much lay when it comes to the "computer's world", so I only hope I'm not actually saying nonsense words, sorry if I am...
By the time I also considered to choose to "reset" the system to the "last known good configuration" (from the startup menu one gets when hitting F8 on boot). But then, as every other case I had read about of other users who had the same infection and had also tried this option, seemingly that didn't work for anyone, so I dropped the thought myself too... (Also, as I've never tried this before, and wasn't quite even sure of whether that might do good or eventually wrong to "my case", I didn't feel all too confident to try it anyway... Should I still?...)
Thankfully though, as time passed on and more similar topics popped up around, I could learn that there may be a chance that formatting C:\ may not be so innevitable after all... (Fingers crossed here!) I came across a few "fix alternatives", as follows:
1) http://home.eunet.no/~pnordahl/ntpasswd/bootdisk.html
Suggested by the site admin on this other Internet Security dedicated forum is to use the boot CD available from the site above in order to be able to edit the registry and change the necessary value for Userinit. According to the instructions in that post, (also see the detailed walkthrough-guide on using this boot disk for instructions on each precedent step), upon loading the SOFTWARE part of the registry (which is the part including the Winlogon\Userinit key and thus the one nedeed to be loaded for editing) and "entering" the registry editor, one must write on the prompt >
cd Microsoft
cd Windows NT
cd CurrentVersion
cd Winlogon
ed Userinit
(I take it that these sequential "cd" commands is for changing from one key level to another in order to get us to the Winlogon key, HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon, where there's Userinit which we want to edit, thus the "ed" for Userinit there, correct? My only doubt is regarding the "Windows NT" in there... cos of the space between "Windows" and "NT"... are spaces allowed in such command line prompts, or?...)
It is said that at this point the value for Userinit should be displayed, yet, since it's corrupted, nothing should appear. One should then just write:
userinit.exe
(Which I take it is for editing/changing the current value for Userinit, the malicious unsrvc.exe -runservice, for the necessary default userinit.exe, correct? I wonder, though, what should one do in the event that a value for Userinit is displayed initially, upon entering the command "ed Userinit" before?...)
And then follow the prompts, in order to save the changes, and reboot.
So I wonder, should this be a/the method to consider, or?... (It seems to be pretty much straight-forward... Anyone by chance "familiar" with this boot disk?...) Please advise.
---
2) http://thinkinginpixels.com/quick-fixes/fi...onlog-off-loop/
Instructions here are to apply the provided reg fix by using BartPE boot CD. Should this be a/the preferred method? (I'm not familiar with using BartPE boot CD either... Though I'm well aware that this is pretty much the "reference boot disk" for mostly everyone! Only "hesitation" for me here is that, for going for this, I would still have to create the XP CD slipstreamed with SP2, since the CD we have is of XP without SP2... Oh dear, I wonder only if I'm capable of doing this "procedure" successfully...
---
3) http://www.winxptutor.com/wsaremove.htm
Down the page there's also reference to dealing with such a login/logoff loop. Instructions there do not refer specifically to the malicious file I'm dealing with myself, yet, assuming that those may be adapted to my case (don't know if they may at all, though?), would this also be a/the method to consider, or?... (Two doubts here. At once: seen that the computer runs XP SP2, can the XP CD be used for launching the Recovery Console? Or does it too have to be a XP CD with SP2?... And also: what about the Run key also referring to unsrvc.exe? What would happen then, if copying the file userinit.exe as unsrvc.exe, in this case that this Run key exists, HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Run > "unsrvc"="C:\\WINDOWS\\system32\\unsrvc.exe -runservice"? Would or might this cause any problem, or?...)
---
4) ERUNT
I do have ERUNT installed in our home PC. Don't actually have it set for making a backup on each boot, but, I do make backups regularly, so there should be a backup recent enough for restoring the registry to a state previous to the infection, in order to get those unsrvc.exe-related entries fixed and thus consequently the login/logoff loop as well (correct?). So, ERUNT being an option for me, should this be a/the preferred method after all? (Also never used ERUNT for restoring the registry before...
backup inside the Windows folder, and that using this procedure only
the system registry is restored.", and, while I do indeed have the registry backups saved inside the Windows folder as by default, the part of the registry which I need restored is the SOFTWARE part and not the SYSTEM one, and therefore the "Recovery Console method" just wouldn't do, in my case, correct? Thus the "BartPE method" is then the one I should go for, right? A doubt here too: seen that the SOFTWARE part of the registry is that we want fixed, would it then be ok/advisable to restory only that part of the registry, the SOFTWARE part? Or is it just best/advisable to simply restore the registry in full? One last general/basic doubt: if the registry is restored to a date previous to, for example, some legit program had been installed, then chances are that that program will afterwards be "broken"/not function, correct? I mean, hmm, I don't think that should be my case, as I don't think I have installed any program after the last registry backup, but still anyway... Thought of asking, just to know it, for reference for any future time...)
----------
So, to sum it up: Both computers, the home PC and the laptop, both are infected with the same banker trojan (unsrvc.exe).
-> After a preliminary cleaning, the home PC got "stuck" in login/logoff loop. What to do in order to "recover" it from such login/logoff loop (to then proceed with removing the remainder of the trojan infection)?
-> And what procedure to take, in order to clean the laptop from the same trojan infection, without causing it too to end up "stuck" in such login/logoff loop?
I do thank you in advance for all of your patience with my "case" (and with all of my questioning and doubts and sometimes perhaps even confusing explanation of things) as much as I truly appreciate all guidance/help you may please provide to hopefully solving it.
(And yet I do as well apologise for the rather long post, and all the many details included, some even perhaps useless, I don't know, but in any case I thought I'd detail it all the most I could, hoping that it may be of help, who knows, to any other users "googling" for helpful hints in any such similar case as mine... Thank you for your understanding, and again, patience, overall.)
P.S. Just to add that, just in case some of the forementioned malicious/suspicious files may be required for further analysis, I do have those concerning the laptop infection (unsrvc.exe, winsrvc.exe, sysstr.sys, filetemp.tmp, config.rar, exe1.rar, url.txt, and iospc.sys and drvsrvc.dll though as mentioned these two are currently 0 bytes files), as well as part of those concerning the home PC infections (unsrvc.exe and install_flash_player.exe, plus bpfvmo.exe and the zip file which originally included this malware), all backed up in password-protected archives, should you require the files.
P.P.S. And since the year is just starting, best wishes of a great 2008 to all at BC!
This post has been edited by DeLuk: 12 January 2008 - 11:51 AM

Help
Welcome to BleepingComputer, a free community where people like yourself come together to discuss and learn how to use their computers. Using the site is easy and fun. As a guest, you can browse and view the various discussions in the forums, but can not create a new topic or reply to an existing one unless you are logged in. Other benefits of registering an account are subscribing to topics and forums, creating a blog, and having no ads shown anywhere on the site.
This topic is locked


Back to top












