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Advanced Virus Remover problem


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#1 nerffej

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Posted 23 July 2009 - 10:14 AM

Hello,

i believe i was infected with the advanced virus remover program. i attempted to use Malwarebytes' anti-malware to remove it. i ran one successful scan however upon rebooting, im not sure what happened but pretty much i cannot load Vista anymore unless i go into safe mode. it keeps saying that i have a hardware error and it tries to run chkdisk. when it fails, it bluescreens. i do not remember exactly what it says but it says something about a missing HIVE file. to make matters worse, i cannot even use internet in safe mode (i booted safe mode with networking). if i try to run malware, the program automatically closes (i think its a function of the trojan). upon trying again, the program says that "i do not have enough privelages to run it which is bogus because im on an administrator account. if i uninstall and reinstall malware i can get the program to open however i cannot run it still. if i try to reboot windows from the last operable settings nothing loads and pretty much i get fatal errors on all of my loadup programs and then i get a prompt telling me that windows is going to reboot in a minute. Prior to this problem, after i had scanned for and removed "advanced virus remover" i had to reboot to finish the clean up. however, on reboot, AVR was still there on my desktop and i got an error for "project1 has had a fatal error". i looked it up a bit and i believe project 1 is also a virus or trojan. I'm just wondering if anyone could give me suggestions as to how to proceed. i was thinking of trying to USB in "highjackthis" so i could post a log but i do not have a guarantee of it working. i have ccleanered already and i had trend micro officescan client for my anti virus program before. if anyone could help me out i would be very grateful, this is the worst case of infection that i've ever had.

EDIT

i forgot to mention, before i had been able to at least load up firefox. now it just automatically closes the program. internet explorer results in the same. i was trying to look up fixes for it through google search engine but i believe that anytime i tried to click a link to say bleepingcomputer or whatever it would automatically redirect me to some kind of advertisement. so, most likely probable that i have a major registry edit somewhere....Furthermore i cannot open regedit or task manager. i am told that the program is infected and that i need to run antivirus software blah blah (probably courtesy of AVR)

when i try to run malwarebytes "windows cannot access the specified device, path, or file. you may not have the appropriate permissions to access the item"
run regedit "registry edting has been disabled by your administartor"
taskmanager through typing taskmgr in run "task manager has been disabled by your administrator"

Edited by nerffej, 23 July 2009 - 10:26 AM.


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#2 DaChew

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Posted 23 July 2009 - 10:41 AM

Use a clean computer and a usb jump drive(portable)

Run this on that computer and the jump drive

Please download Flash_Disinfector.exe by sUBs and save it to your desktop.
  • Double-click Flash_Disinfector.exe to run it and follow any prompts that may appear.
  • The utility may ask you to insert your flash drive and/or other removable drives. Please do so and allow the utility to clean up those drives as well.
  • Hold down the Shift key when inserting the drive until Windows detects it to keep autorun.inf from executing if it is present.
  • Wait until it has finished scanning and then exit the program.
  • Reboot your computer when done.
Note: As part of its routine, Flash_Disinfector will create a hidden folder named autorun.inf in each partition and every USB drive that was plugged in when you ran it. Do not delete this folder...it will help protect your drives from future infection by keeping the autorun file from being installed on the root drive and running other malicious files.


Transfer files to and from the infected computer

Before we start fixing anything you should print out these instructions or copy them to a NotePad file so they will be accessible. Some steps will require you to disconnect from the Internet or use Safe Mode and you will not have access to this page.

Please download DrWeb-CureIt and save it to your desktop. DO NOT perform a scan yet.

Reboot your computer in "Safe Mode" using the F8 method. To do this, restart your computer and after hearing your computer beep once during startup (but before the Windows icon appears) press the F8 key repeatedly. A menu will appear with several options. Use the arrow keys to navigate and select the option to run Windows in "Safe Mode".

Scan with Dr.Web CureIt as follows:
  • Double-click on launch.exe to open the program and click Start. (There is no need to update if you just downloaded the most current version
  • Read the Virus check by DrWeb scanner prompt and click Ok where asked to Start scan now? Allow the setup.exe to load if asked by any of your security programs.
  • The Express scan will automatically begin.
    (This is a short scan of files currently running in memory, boot sectors, and targeted folders).
  • If prompted to dowload the Full version Free Trial, ignore and click the X to close the window.
  • If an infected object is found, you will be prompted to move anything that cannot be cured. Click Yes to All.
  • When complete, click Select All, then choose Cure > Move incurable.
    (This will move any detected files to the C:\Documents and Settings\userprofile\DoctorWeb\Quarantine folder if they can't be cured)
  • Now put a check next to Complete scan to scan all local disks and removable media.
  • In the top menu, click Settings > Change settings, and UNcheck "Heuristic analysis" under the "Scanning" tab, then click Ok.
  • Back at the main window, click the green arrow "Start Scanning" button on the right under the Dr.Web logo.
  • When the scan is complete, a message will be displayed at the bottom indicating if any viruses were found.
  • Click "Yes to all" if asked to cure or move the file(s) and select "Move incurable".
  • In the top menu, click file and choose save report list.
  • Save the DrWeb.csv report to your desktop.
  • Exit Dr.Web Cureit when done.
  • Important! Reboot your computer because it could be possible that files in use will be moved/deleted during reboot.
  • After reboot, post the contents of the log from Dr.Web in your next reply. (You can use Notepad to open the DrWeb.cvs report)

Chewy

No. Try not. Do... or do not. There is no try.

#3 nerffej

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Posted 23 July 2009 - 11:23 AM

DaChew

thanks for the help. i did both. i dont think that dr web is finding anything. ive run it like 5 times and it just prompts me with "full version free trial" ive never seen anything else that you listed. when i ran it after a fresh reboot i got a "13epw.exe application error. the instruction at 0x76fd8fb47 referenced memory at 0x86fd8ba8 the memory could not be read. click on ok to terminate the program. ive been getting alot of those though. if i click ok it just sys like svc.exe isnt working either or something

correction, the same error comes up when i try to run it again. so i think the scan isnt even executing which is why im prompted to the full version free trial thing. furthermore, thats the only error message i get if i immediately run drweb right after i reboot my computer in safe mode (with networking) and do not execute anything else. any other suggestions? thank you for your efforts

Edited by nerffej, 23 July 2009 - 11:25 AM.


#4 DaChew

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Posted 23 July 2009 - 11:34 AM

Would you rename the cureit file to iexplore.exe
Chewy

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#5 nerffej

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Posted 23 July 2009 - 11:43 AM

i just did. i got the exact same error message as i posted before. the memory one.

#6 DaChew

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Posted 23 July 2009 - 12:09 PM

Please download and run Processexplorer


http://technet.microsoft.com/en-us/sysinte...s/bb896653.aspx

Under file and save as, create a log and post here

copy and paste into a reply

Here's a random renamer for MBAM if you can get it installed

http://kixhelp.com/wr/files/mb/randmbam.exe

Here's a link for MBAM definition update

http://www.gt500.org/malwarebytes/database.jsp

Edited by DaChew, 23 July 2009 - 12:09 PM.

Chewy

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#7 nerffej

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Posted 23 July 2009 - 12:20 PM

i will be unable to do this until around 330 PM EST so i will post a reply with results ASAP. thanks so much

#8 DaChew

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Posted 23 July 2009 - 12:31 PM

All your symptoms point to a very nasty infection so I would suggest you consider reloading your computer
Chewy

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#9 nerffej

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Posted 23 July 2009 - 11:31 PM

here is the log. plese tell me if this was not what you were looking for

Process PID CPU Description Company Name
System Idle Process 0 87.69
Interrupts n/a Hardware Interrupts
DPCs n/a 1.54 Deferred Procedure Calls
System 4
csrss.exe 496 Client Server Runtime Process Microsoft Corporation
csrss.exe 532 Client Server Runtime Process Microsoft Corporation
wininit.exe 540 Windows Start-Up Application Microsoft Corporation
services.exe 616 Services and Controller app Microsoft Corporation
svchost.exe 792 Host Process for Windows Services Microsoft Corporation
unsecapp.exe 8480 Sink to receive asynchronous callbacks for WMI client application Microsoft Corporation
WmiPrvSE.exe 9984 WMI Provider Host Microsoft Corporation
dllhost.exe 5548 7.69 COM Surrogate Microsoft Corporation
svchost.exe 864 Host Process for Windows Services Microsoft Corporation
svchost.exe 912 Host Process for Windows Services Microsoft Corporation
svchost.exe 1012 Host Process for Windows Services Microsoft Corporation
svchost.exe 1036 Host Process for Windows Services Microsoft Corporation
svchost.exe 1132 Host Process for Windows Services Microsoft Corporation
svchost.exe 1160 Host Process for Windows Services Microsoft Corporation
svchost.exe 1180 Host Process for Windows Services Microsoft Corporation
svchost.exe 1408 Host Process for Windows Services Microsoft Corporation
svchost.exe 1948 Host Process for Windows Services Microsoft Corporation
lsass.exe 628 Local Security Authority Process Microsoft Corporation
lsm.exe 636 Local Session Manager Service Microsoft Corporation
winlogon.exe 568 Windows Logon Application Microsoft Corporation
explorer.exe 484 Windows Explorer Microsoft Corporation
300.exe 2532
xukgcb.exe 1372
nwxt.exe 1368 Lvep Application
yuovbr.exe 2496
winupdate.exe 2412
wnnzrn.exe 2816
svchost.exe 3032
win.exe 2332
reader_s.exe 3012 ASF Error Definitions Microsoft Corporation
svchost.exe 580 Host Process for Windows Services Microsoft Corporation
svchost.exe 3252 Host Process for Windows Services Microsoft Corporation
svchost.exe 3228 Host Process for Windows Services Microsoft Corporation
svchost.exe 3288 Host Process for Windows Services Microsoft Corporation
svchost.exe 4940 Host Process for Windows Services Microsoft Corporation
svchost.exe 4964 Host Process for Windows Services Microsoft Corporation
system.exe 3084
mdm.exe 5848
lsass.exe 5924
spoolsv.exe 5896
csrss.exe 5940
install.exe 9716
debug.exe 8512
iexplore.exe 2352 Internet Explorer Microsoft Corporation
WinRAR.exe 4768 WinRAR archiver Alexander Roshal
procexp.exe 5140 3.08 Sysinternals Process Explorer Sysinternals - www.sysinternals.com
iedw.exe 4980 IE Crash Detection Microsoft Corporation
mbam.exe 5212 Malwarebytes' Anti-Malware Malwarebytes Corporation

#10 DaChew

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Posted 23 July 2009 - 11:46 PM

I'm afraid I have very bad news.

Your system is infected with a nasty variant of Virut, a polymorphic file infector with IRCBot functionality which infects .exe, .scr files, downloads more malicious files to your system, and opens a back door that compromises your computer. According to this Norman White Paper Assessment of W32/Virut, some variants can infect the HOSTS file and block access to security related web sites. Other variants of virut can even penetrate and infect .exe files within compressed files (.zip, .cab, rar). Virux is an even more complex file infector which can embed an iframe into the body of web-related files and infect script files (.php, .asp, and .html). When Virut creates infected files, it also creates non-functional files that are corrupted beyond repair and in some instances can disable Windows File Protection. In many cases the infected files cannot be disinfected properly by your anti-virus. When disinfection is attempted, the files become corrupted and the system may become irreparable. The longer virut remains on a computer, the more critical system files will become infected and corrupt so the degree of infection can vary.

The virus disables Windows File Protection by injecting code into the "winlogon.exe" process that patches system code in memory.

CA Virus detail of W32/Virut

The virus has a number of bugs in its code, and as a result it may misinfect a proportion of executable files....some W32/Virut.h infections are corrupted beyond repair.

McAfee Risk Assessment and Overview of W32/Virut

There are bugs in the viral code. When the virus produces infected files, it also creates non-functional files that also contain the virus...Due to the damaged caused to files by virut it's possible to find repaired but corrupted files. They became corrupted by the incorrect writing of the viral code during the process of infection. undetected, corrupted files (possibly still containing part of the viral code) can also be found. this is caused by incorrectly written and non-function viral code present in these files.

AVG Overview of W32/VirutThis kind of infection is contracted and spread by visiting remote, crack and keygen sites. These type of sites are infested with a smörgåsbord of malware and an increasing source of system infection. However, the CA Security Advisor Research Blog says they have found MySpace user pages carrying the malicious Virut URL. Either way you can end up with a computer system so badly damaged that recovery is not possible and it cannot be repaired. When that happens there is nothing you can do besides reformatting and reinstalling the OS.

...warez and crack web pages are being used by cybercriminals as download sites for malware related to VIRUT and VIRUX. Searches for serial numbers, cracks, and even antivirus products like Trend Micro yield malcodes that come in the form of executables or self-extracting files...quick links in these sites also lead to malicious files. Ads and banners are also infection vectors...

Keygen and Crack Sites Distribute VIRUX and FakeAV

If your computer was used for online banking, has credit card information or other sensitive data on it, you should disconnect from the Internet until your system is cleaned. All passwords should be changed immediately to include those used for banking, email, eBay, paypal and online forums. You should consider them to be compromised. You should change each password using a clean computer and not the infected one. If not, an attacker may get the new passwords and transaction information. If using a router, you need to reset it with a strong logon/password so the malware cannot gain control before connect again. Banking and credit card institutions should be notified of the possible security breach. Because your computer was compromised please read:There is no guarantee this infection can be completely removed. In some instances it may have caused so much damage to your system that it cannot be completely cleaned or repaired. The malware may leave so many remnants behind that security tools cannot find them. Many experts in the security community believe that once infected with this type of malware, the best course of action is to wipe the drive clean, reformat and reinstall the OS. Reinstalling Windows without first wiping the entire hard drive with a repartition and/or format will not remove the infection. The reinstall will only overwrite the Windows files. Any malware on the system will still be there afterwards. Please read:
Chewy

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#11 nerffej

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Posted 23 July 2009 - 11:58 PM

thanks for the help. it looks like my only choice is to reformat the computer unless you can suggest something else. should i even back up my files? fortunately i dont have any sensitive data saved like passwords or whatever but there are simple files for nostalgic purposes or whatever (Music etc) id appreciate it if you could link me to some literature as to how to actually reformat.

#12 DaChew

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Posted 24 July 2009 - 12:08 AM

Please see this post by Quietman7 on formating and reinstalling windows

http://www.bleepingcomputer.com/forums/ind...t&p=1351315

Music, pictures, documents and video are about the only things that Virut doesn't infect
Chewy

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