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Virus comes back again and again :(


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3 replies to this topic

#1 SHAHLA

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Posted 04 August 2009 - 06:42 AM

I computer has been infected by a spyware/virus, following are the symptoms:

1.My modem shows sending and receiving activity,even when i am not doing anything.

2.I AVG 8.5 installed on my computer is not working properly.

3.I cannot open websites of any antivirus software vendor AVG,Kaspersky,Bitdefender,Norton none...this cant be a coincidence....so basically i cant run online antivirus scans too.....i cant even open virusscan.jotti.org!

4.I cant enable system restore.

5.I checked my Firewall setting. Its On but when i try to enable ICF....it tells me i cant.

I have manually deleted some viruses/spyware from my computer since last few days:

1.inethttpfilter.dll
2.servises.exe
3.reader_s.exe
4._id.dat
5.cmd.exe(something i forgot)
6.VRT1,VRT2,VRT3,VRT4,VRT5,VRT6.
6.and many other.

I used Spybot S&D which removed other spywares too.

But the problem is no matter how many times i remove servises.exe or reader_s.exe and also the VRT series , they get downloaded on my computer again everytime i switch on my modem.I am tired of deleting them again and again :thumbup2:

I had installed µtorrent a month ago...i have uninstalled it now suspecting it could be a culprit...am i correct?

Here is the HijackThis log of my computer(after removing servises.exe and reader_s.exe again)

Logfile of Trend Micro HijackThis v2.0.2
Scan saved at 4:23:52 PM, on 8/4/2009
Platform: Windows XP SP2 (WinNT 5.01.2600)
MSIE: Internet Explorer v6.00 SP2 (6.00.2900.2180)
Boot mode: Safe mode with network support

Running processes:
C:\WINDOWS\System32\smss.exe
C:\WINDOWS\system32\csrss.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:\WINDOWS\system32\svchost.exe
C:\WINDOWS\system32\svchost.exe
C:\WINDOWS\system32\svchost.exe
C:\WINDOWS\Explorer.EXE
C:\WINDOWS\system32\WgaTray.exe
C:\WINDOWS\System32\svchost.exe
C:\WINDOWS\System32\svchost.exe
C:\WINDOWS\System32\svchost.exe
C:\WINDOWS\System32\svchost.exe
C:\WINDOWS\System32\svchost.exe
C:\WINDOWS\System32\svchost.exe
D:\Program Files\HijackThis.exe
C:\WINDOWS\system32\NOTEPAD.EXE
C:\WINDOWS\system32\wbem\wmiprvse.exe

R0 - HKCU\Software\Microsoft\Internet Explorer\Main,Start Page = about:blank
R3 - URLSearchHook: AVG Security Toolbar BHO - {A3BC75A2-1F87-4686-AA43-5347D756017C} - C:\Program Files\AVG\AVG8\Toolbar\IEToolbar.dll
R3 - URLSearchHook: (no name) - *{CFBFAE00-17A6-11D0-99CB-00C04FD64497} - (no file)
O2 - BHO: AcroIEHlprObj Class - {06849E9F-C8D7-4D59-B87D-784B7D6BE0B3} - C:\Program Files\Adobe\Acrobat 7.0\ActiveX\AcroIEHelper.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} - D:\shahla\NETBEANSPROGRAMFILES\JRE1.6.0_06\bin\ssv.dll
O2 - BHO: AVG Security Toolbar BHO - {A3BC75A2-1F87-4686-AA43-5347D756017C} - C:\Program Files\AVG\AVG8\Toolbar\IEToolbar.dll
O3 - Toolbar: AVG Security Toolbar - {CCC7A320-B3CA-4199-B1A6-9F516DD69829} - C:\Program Files\AVG\AVG8\Toolbar\IEToolbar.dll
O4 - Global Startup: Adobe Reader Speed Launch.lnk = C:\Program Files\Adobe\Acrobat 7.0\Reader\reader_sl.exe
O4 - Global Startup: AutoCAD Startup Accelerator.lnk = C:\Program Files\Common Files\Autodesk Shared\acstart16.exe
O9 - Extra button: (no name) - {08B0E5C0-4FCB-11CF-AAA5-00401C608501} - D:\shahla\NETBEANSPROGRAMFILES\JRE1.6.0_06\bin\ssv.dll
O9 - Extra 'Tools' menuitem: Sun Java Console - {08B0E5C0-4FCB-11CF-AAA5-00401C608501} - D:\shahla\NETBEANSPROGRAMFILES\JRE1.6.0_06\bin\ssv.dll
O9 - Extra button: Messenger - {FB5F1910-F110-11d2-BB9E-00C04F795683} - C:\Program Files\Messenger\msmsgs.exe
O9 - Extra 'Tools' menuitem: Windows Messenger - {FB5F1910-F110-11d2-BB9E-00C04F795683} - C:\Program Files\Messenger\msmsgs.exe
O17 - HKLM\System\CS1\Services\Tcpip\..\{17EAA60C-BE6F-4EA3-84F8-6089E8AC1F45}: NameServer = 203.94.227.70,203.94.243.70
O18 - Protocol: linkscanner - {F274614C-63F8-47D5-A4D1-FBDDE494F8D1} - C:\Program Files\AVG\AVG8\avgpp.dll
O20 - Winlogon Notify: avgrsstarter - C:\WINDOWS\SYSTEM32\avgrsstx.dll
O23 - Service: Application Management AppMgmt Network Licensing Service (AppMgmt Network Licensing Service) - Unknown owner - C:\WINDOWS\system32\34.tmp.exe (file missing)
O23 - Service: Autodesk Licensing Service - Autodesk - C:\Program Files\Common Files\Autodesk Shared\Service\AdskScSrv.exe
O23 - Service: Autodesk Network Licensing Service - Autodesk, Inc. - C:\Program Files\Common Files\Autodesk Shared\Service\AdskNetSrv.exe
O23 - Service: AVG8 WatchDog (avg8wd) - AVG Technologies CZ, s.r.o. - C:\PROGRA~1\AVG\AVG8\avgwdsvc.exe
O23 - Service: RaySat_3dsmax8 Server (mi-raysat_3dsmax8) - Unknown owner - C:\Program Files\Autodesk\3dsMax8\mentalray\satellite\raysat_3dsmax8server.exe (file missing)
O23 - Service: NuTCRACKER Service (NuTCRACKERService) - DataFocus, Inc. - C:\WINDOWS\system32\nutsrv4.exe
O23 - Service: ServiceLayer - Nokia. - C:\Program Files\PC Connectivity Solution\ServiceLayer.exe

--
End of file - 3830 bytes


Thanks in advance :)

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#2 Orange Blossom

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Posted 05 August 2009 - 12:15 AM

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 corrupted 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 including 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. Most 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:Orange Blossom :thumbup2:
Help us help you. If HelpBot replies, you MUST follow step 1 in its reply so we know you need help.

Orange Blossom

An ounce of prevention is worth a pound of cure

SpywareBlaster, WinPatrol Plus, ESET Smart Security, Malwarebytes' Anti-Malware, NoScript Firefox ext., Norton noscript

#3 SHAHLA

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Posted 05 August 2009 - 04:54 AM

It is indeed a bad news, i thought reformatting is the last thing i would do...but i guess it is the only option i have now :thumbup2:

But thanks for all the information you gave.

Actually, AVG had given a warning that my comp is infected with Win32/Virut around 20 days ago.I had used the Virut remover from its website.After that everything looked fine until 31st July...when AVG started showing my computer is infected after every few minute....then i couldnt access its website and all the problems mentioned above.

I am still thinking from where it came.

But anyways thanks for your help:)

#4 Orange Blossom

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Posted 06 August 2009 - 11:29 PM

Hello,

If you need help with reformatting, please post in the XP forum.

It is best to back up only the data you really need and can't replace - like word files, spreadsheets, pictures and other important (personal) data files you are in need of. Reformatting will destroy them all and you cannot retrieve the files once you have performed the reformat. There is no harm in backing up documents and other important (personal) data.

Do NOT back up any Operating System-related files and files you do not recognize. Files that you should not backup include those with the following extensions:

exe
.scr
.htm
.html
.xml
.zip
.rar
.asp
.php

To protect yourself against malware and reduce your chance of reinfection in the future, I really recommend to have a look at following links (giving some advice and tips):Orange Blossom :thumbup2:
Help us help you. If HelpBot replies, you MUST follow step 1 in its reply so we know you need help.

Orange Blossom

An ounce of prevention is worth a pound of cure

SpywareBlaster, WinPatrol Plus, ESET Smart Security, Malwarebytes' Anti-Malware, NoScript Firefox ext., Norton noscript




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