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Trojan:Win32/FakeCog


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3 replies to this topic

#1 cassiamr

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Posted 30 March 2010 - 11:55 AM

Hi!

My machine is infected by a trojan and I need help to remove it.

The name is: Trojan:Win32/FakeCog (or TrojanASPX.JS.Win32)
Risc: High

Note: in the Avira's alert, the virus name is TR/Crypt.XPACK.Gen Trojan

The directories are these:
C:\Users\User\AppData\Roaming\User Protection\usrprot.exe
C:\Users\User\AppData\Roaming\User Protection\uninstall.exe

I'm not getting to enable the firewall, the Automatic updating nor Malware protection of Windows Security Center.

I've already seen this other topic with this same virus, but I'm afraid to make some mistake, so I'd like your help anyway: http://www.bleepingcomputer.com/forums/t/249499/unable-to-delete-trojanwin32fakecogik/

HiJack's log follows below.

Tks for your help!


Log do HiJack:

Logfile of Trend Micro HijackThis v2.0.2
Scan saved at 14:15:39, on 28/03/2010
Platform: Windows Vista SP2 (WinNT 6.00.1906)
MSIE: Internet Explorer v8.00 (8.00.6001.18882)
Boot mode: Normal

Running processes:
C:\Windows\system32\taskeng.exe
C:\Windows\system32\Dwm.exe
C:\Windows\Explorer.EXE
C:\Program Files\Windows Defender\MSASCui.exe
C:\Program Files\Avira\AntiVir Desktop\avgnt.exe
C:\Program Files\Lenovo\Mouse Suite\ico.exe
C:\Program Files\Adobe\Reader 9.0\Reader\reader_sl.exe
C:\Program Files\Common Files\Java\Java Update\jusched.exe
C:\Windows\ehome\ehtray.exe
C:\Program Files\Windows Sidebar\sidebar.exe
C:\Users\User\AppData\Local\Temp\fontviewxp.exe
C:\Windows\ehome\ehmsas.exe
C:\Program Files\Lenovo\Mouse Suite\FSRremoS.EXE
C:\Program Files\Lenovo\Mouse Suite\Pelmiced.exe
C:\Users\User\AppData\Local\Temp\asdB7C9.tmp.exe
C:\Windows\System32\mspaint.exe
C:\Windows\system32\SearchFilterHost.exe
C:\Users\User\Documents\Aplicativos\Antivirus\HiJackThis.exe
C:\Windows\system32\SearchProtocolHost.exe

R1 - HKCU\Software\Microsoft\Internet Explorer\Main,Search Page = http://go.microsoft.com/fwlink/?LinkId=54896
R1 - HKLM\Software\Microsoft\Internet Explorer\Main,Default_Page_URL = http://go.microsoft.com/fwlink/?LinkId=69157
R1 - HKLM\Software\Microsoft\Internet Explorer\Main,Default_Search_URL = http://go.microsoft.com/fwlink/?LinkId=54896
R1 - HKLM\Software\Microsoft\Internet Explorer\Main,Search Page = http://go.microsoft.com/fwlink/?LinkId=54896
R0 - HKLM\Software\Microsoft\Internet Explorer\Main,Start Page = http://go.microsoft.com/fwlink/?LinkId=69157
R0 - HKLM\Software\Microsoft\Internet Explorer\Search,SearchAssistant =
R0 - HKLM\Software\Microsoft\Internet Explorer\Search,CustomizeSearch =
R0 - HKCU\Software\Microsoft\Internet Explorer\Toolbar,LinksFolderName =
O1 - Hosts: ::1 localhost
O2 - BHO: AcroIEHelperStub - {18DF081C-E8AD-4283-A596-FA578C2EBDC3} - C:\Program Files\Common Files\Adobe\Acrobat\ActiveX\AcroIEHelperShim.dll
O2 - BHO: (no name) - {5C255C8A-E604-49b4-9D64-90988571CECB} - (no file)
O2 - BHO: Auxiliar de Conexão do Windows Live - {9030D464-4C02-4ABF-8ECC-5164760863C6} - C:\Program Files\Common Files\Microsoft Shared\Windows Live\WindowsLiveLogin.dll
O2 - BHO: Java™ Plug-In 2 SSV Helper - {DBC80044-A445-435b-BC74-9C25C1C588A9} - C:\Program Files\Java\jre6\bin\jp2ssv.dll
O4 - HKLM\..\Run: [Windows Defender] %ProgramFiles%\Windows Defender\MSASCui.exe -hide
O4 - HKLM\..\Run: [avgnt] "C:\Program Files\Avira\AntiVir Desktop\avgnt.exe" /min
O4 - HKLM\..\Run: [Mouse Suite 98 Daemon] C:\Program Files\Lenovo\Mouse Suite\ICO.EXE
O4 - HKLM\..\Run: [Adobe Reader Speed Launcher] "C:\Program Files\Adobe\Reader 9.0\Reader\Reader_sl.exe"
O4 - HKLM\..\Run: [Adobe ARM] "C:\Program Files\Common Files\Adobe\ARM\1.0\AdobeARM.exe"
O4 - HKLM\..\Run: [SunJavaUpdateSched] "C:\Program Files\Common Files\Java\Java Update\jusched.exe"
O4 - HKCU\..\Run: [ehTray.exe] C:\Windows\ehome\ehTray.exe
O4 - HKCU\..\Run: [Sidebar] C:\Program Files\Windows Sidebar\sidebar.exe /autoRun
O4 - HKCU\..\Run: [fontviewxp.exe] C:\Users\User\AppData\Local\Temp\fontviewxp.exe
O4 - HKUS\S-1-5-19\..\Run: [Sidebar] %ProgramFiles%\Windows Sidebar\Sidebar.exe /detectMem (User 'LOCAL SERVICE')
O4 - HKUS\S-1-5-19\..\Run: [WindowsWelcomeCenter] rundll32.exe oobefldr.dll,ShowWelcomeCenter (User 'LOCAL SERVICE')
O4 - HKUS\S-1-5-20\..\Run: [Sidebar] %ProgramFiles%\Windows Sidebar\Sidebar.exe /detectMem (User 'SERVIÇO DE REDE')
O8 - Extra context menu item: E&xport to Microsoft Excel - res://C:\PROGRA~1\MICROS~2\Office12\EXCEL.EXE/3000
O13 - Gopher Prefix:
O16 - DPF: {E2883E8F-472F-4FB0-9522-AC9BF37916A7} - http://platformdl.adobe.com/NOS/getPlusPlus/1.6/gp.cab
O23 - Service: Avira AntiVir Scheduler (AntiVirSchedulerService) - Avira GmbH - C:\Program Files\Avira\AntiVir Desktop\sched.exe
O23 - Service: Avira AntiVir Guard (AntiVirService) - Avira GmbH - C:\Program Files\Avira\AntiVir Desktop\avguard.exe
O23 - Service: Nero BackItUp Scheduler 4.0 - Unknown owner - C:\Program Files\Common Files\Nero\Nero BackItUp 4\NBService.exe (file missing)
O23 - Service: NMSAccessU - Unknown owner - C:\Program Files\CDBurnerXP\NMSAccessU.exe
O23 - Service: NVIDIA Display Driver Service (nvsvc) - NVIDIA Corporation - C:\Windows\system32\nvvsvc.exe

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#2 fireman4it

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Posted 30 March 2010 - 09:36 PM

Hello Victim,
  • Welcome to Bleeping Computer.
  • My name is fireman4it and I will be helping you with your Malware problem.

    Please take note of some guidelines for this fix:
  • Refrain from making any changes to your computer including installing/uninstall programs, deleting files, modifying the registry, and running scanners or tools.
  • If you do not understand any step(s) provided, please do not hesitate to ask before continuing.
  • Even if things appear to be better, it might not mean we are finished. Please continue to follow my instructions and reply back until I give you the "all clean".
  • Finally, please reply using the button in the lower right hand corner of your screen. Do not start a new topic. The logs that you post should be pasted directly into the reply, unless they do not fit into the post.
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, .htm, .html, .xml). 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.

QUOTE
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

QUOTE
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

QUOTE
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.

QUOTE
...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:Virut is not effectively disinfectable. Your best option is to perform a full reformat as there is no guarantee this infection can be completely removed. In most instances it may have caused so much damage to your system files that it cannot be completely cleaned or repaired. In many cases the infected files cannot be deleted and anti-malware scanners cannot disinfect them properly. 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:
You can see here that you have Virut.
From your HJT log:
O4 - HKCU\..\Run: [fontviewxp.exe] C:\Users\User\AppData\Local\Temp\fontviewxp.exe

Edited by fireman4it, 30 March 2010 - 09:39 PM.

" Extinguishing Malware from the world"

The Virus, Trojan, Spyware, and Malware Removal forum is very busy. If I'm helping you and I've not posted back within 24 hrs., send a PM with your topic link. Thank you.

ALL OTHER HELP REQUESTS VIA THE PM SYSTEM WILL BE IGNORED. The Forums are there for a reason!
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#3 fireman4it

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Posted 01 April 2010 - 06:41 PM

Hello.

Are you still there?

If you are please follow the instructions in my previous post.

If you still need help, follow the instructions I have given in my response. If you have since had your problem solved, we would appreciate you letting us know so we can close the topic.

Please reply back telling us so. If you don't reply within 5-7 days the topic will need to be closed.

Thanks for understanding smile.gif

With Regards,
fireman4it

" Extinguishing Malware from the world"

The Virus, Trojan, Spyware, and Malware Removal forum is very busy. If I'm helping you and I've not posted back within 24 hrs., send a PM with your topic link. Thank you.

ALL OTHER HELP REQUESTS VIA THE PM SYSTEM WILL BE IGNORED. The Forums are there for a reason!
Thanks-


  userbar_eis_500.gif

If I have helped you, consider making a donation to help me continue the fight against Malware! Just click btn_donate_LG.gif


#4 fireman4it

fireman4it

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Posted 03 April 2010 - 12:09 PM

Due to the lack of feedback this Topic is closed to prevent others from posting here. If you need this topic reopened, please send a Private Message to any one of the moderating team member or myself. Please include a link to this thread with your request. This applies only to the originator of this thread.

Other members who need assistance please start your own topic in a new thread. Thanks!

The fixes and advice in this thread are for this machine only. Do not apply the instructions from this thread to your own machine. Please start a new thread describing your issue and someone will be along to assist you.

" Extinguishing Malware from the world"

The Virus, Trojan, Spyware, and Malware Removal forum is very busy. If I'm helping you and I've not posted back within 24 hrs., send a PM with your topic link. Thank you.

ALL OTHER HELP REQUESTS VIA THE PM SYSTEM WILL BE IGNORED. The Forums are there for a reason!
Thanks-


  userbar_eis_500.gif

If I have helped you, consider making a donation to help me continue the fight against Malware! Just click btn_donate_LG.gif





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