cryptor in csrss.exe?

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cryptor in csrss.exe?

Post by caddickj on 25th November 2009, 5:30 am

AVG keeps pulling up the same two entries after every reboot, and I frequently get BSOD'd with Stop error 0xD1... usually during the AVG scan (though at this point I'm pretty much always doing an AVG scan).

A few weeks ago I got hit with a false antivirus trick. I think I cleaned that off, but I'm not positive. In any case, this has been happening ever since. The BSODs pretty much started during that debacle.

Here's the HijackThis log:

Logfile of Trend Micro HijackThis v2.0.2
Scan saved at 12:26:11 AM, on 11/25/2009
Platform: Windows XP SP3 (WinNT 5.01.2600)
MSIE: Internet Explorer v8.00 (8.00.6001.18702)
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\AVG\AVG9\avgchsvx.exe
C:\Program Files\AVG\AVG9\avgrsx.exe
C:\Program Files\AVG\AVG9\avgcsrvx.exe
C:\WINDOWS\system32\spoolsv.exe
C:\WINDOWS\Explorer.EXE
C:\Program Files\AVG\AVG9\avgwdsvc.exe
C:\Program Files\Java\jre6\bin\jqs.exe
C:\Program Files\LogMeIn\x86\RaMaint.exe
C:\Program Files\AVG\AVG9\avgnsx.exe
C:\Program Files\LogMeIn\x86\LogMeIn.exe
C:\Program Files\LogMeIn\x86\LMIGuardian.exe
C:\Program Files\Analog Devices\SoundMAX\SMAgent.exe
C:\Program Files\AVG\AVG9\avgemc.exe
C:\WINDOWS\system32\igfxtray.exe
C:\WINDOWS\system32\hkcmd.exe
C:\WINDOWS\system32\igfxpers.exe
C:\Program Files\Analog Devices\SoundMAX\SMax4PNP.exe
C:\Program Files\Analog Devices\SoundMAX\Smax4.exe
C:\Program Files\ANI\ANIWZCS2 Service\WZCSLDR2.exe
C:\Program Files\D-Link\D-Link RangeBooster N DWA-140\AirNCFG.exe
C:\Program Files\LogMeIn\x86\LogMeInSystray.exe
C:\Program Files\AVG\AVG9\avgcsrvx.exe
C:\PROGRA~1\AVG\AVG9\avgtray.exe
C:\Program Files\Java\jre6\bin\jusched.exe
C:\Program Files\Messenger\msmsgs.exe
C:\WINDOWS\system32\ctfmon.exe
C:\Program Files\LogMeIn\x86\LMIGuardian.exe
C:\Program Files\AVG\AVG9\avgscanx.exe
C:\Program Files\AVG\AVG9\avgcsrvx.exe
C:\Program Files\AVG\AVG9\avgui.exe
C:\WINDOWS\System32\svchost.exe
C:\Program Files\Internet Explorer\iexplore.exe
C:\Program Files\Internet Explorer\iexplore.exe
C:\Program Files\Trend Micro\HijackThis\HijackThis.exe

R0 - HKCU\Software\Microsoft\Internet Explorer\Main,Start Page = about:blank
R1 - HKLM\Software\Microsoft\Internet Explorer\Main,Default_Page_URL = [You must be registered and logged in to see this link.]
R1 - HKLM\Software\Microsoft\Internet Explorer\Main,Default_Search_URL = [You must be registered and logged in to see this link.]
R1 - HKLM\Software\Microsoft\Internet Explorer\Main,Search Page = [You must be registered and logged in to see this link.]
R0 - HKLM\Software\Microsoft\Internet Explorer\Main,Start Page = [You must be registered and logged in to see this link.]
R3 - URLSearchHook: AVG Security Toolbar BHO - {A3BC75A2-1F87-4686-AA43-5347D756017C} - C:\Program Files\AVG\AVG9\Toolbar\IEToolbar.dll
O2 - BHO: WormRadar.com IESiteBlocker.NavFilter - {3CA2F312-6F6E-4B53-A66E-4E65E497C8C0} - C:\Program Files\AVG\AVG9\avgssie.dll
O2 - BHO: AVG Security Toolbar BHO - {A3BC75A2-1F87-4686-AA43-5347D756017C} - C:\Program Files\AVG\AVG9\Toolbar\IEToolbar.dll
O2 - BHO: Java(tm) Plug-In 2 SSV Helper - {DBC80044-A445-435b-BC74-9C25C1C588A9} - C:\Program Files\Java\jre6\bin\jp2ssv.dll
O2 - BHO: JQSIEStartDetectorImpl - {E7E6F031-17CE-4C07-BC86-EABFE594F69C} - C:\Program Files\Java\jre6\lib\deploy\jqs\ie\jqs_plugin.dll
O3 - Toolbar: AVG Security Toolbar - {CCC7A320-B3CA-4199-B1A6-9F516DD69829} - C:\Program Files\AVG\AVG9\Toolbar\IEToolbar.dll
O4 - HKLM\..\Run: [igfxtray] C:\WINDOWS\system32\igfxtray.exe
O4 - HKLM\..\Run: [igfxhkcmd] C:\WINDOWS\system32\hkcmd.exe
O4 - HKLM\..\Run: [igfxpers] C:\WINDOWS\system32\igfxpers.exe
O4 - HKLM\..\Run: [SoundMAXPnP] C:\Program Files\Analog Devices\SoundMAX\SMax4PNP.exe
O4 - HKLM\..\Run: [SoundMAX] "C:\Program Files\Analog Devices\SoundMAX\Smax4.exe" /tray
O4 - HKLM\..\Run: [ANIWZCS2Service] C:\Program Files\ANI\ANIWZCS2 Service\WZCSLDR2.exe
O4 - HKLM\..\Run: [D-Link D-Link RangeBooster N DWA-140] C:\Program Files\D-Link\D-Link RangeBooster N DWA-140\AirNCFG.exe
O4 - HKLM\..\Run: [LogMeIn GUI] "C:\Program Files\LogMeIn\x86\LogMeInSystray.exe"
O4 - HKLM\..\Run: [Malwarebytes Anti-Malware (reboot)] "C:\Program Files\Malwarebytes' Anti-Malware\mbam.exe" /runcleanupscript
O4 - HKLM\..\Run: [AVG9_TRAY] C:\PROGRA~1\AVG\AVG9\avgtray.exe
O4 - HKLM\..\Run: [SunJavaUpdateSched] "C:\Program Files\Java\jre6\bin\jusched.exe"
O4 - HKCU\..\Run: [MSMSGS] "C:\Program Files\Messenger\msmsgs.exe" /background
O4 - HKCU\..\Run: [ctfmon.exe] C:\WINDOWS\system32\ctfmon.exe
O8 - Extra context menu item: Add to Google Photos Screensa&ver - [You must be registered and logged in to see this link.]
O9 - Extra button: (no name) - {e2e2dd38-d088-4134-82b7-f2ba38496583} - C:\WINDOWS\Network Diagnostic\xpnetdiag.exe
O9 - Extra 'Tools' menuitem: @xpsp3res.dll,-20001 - {e2e2dd38-d088-4134-82b7-f2ba38496583} - C:\WINDOWS\Network Diagnostic\xpnetdiag.exe
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
O16 - DPF: {6414512B-B978-451D-A0D8-FCFDF33E833C} (WUWebControl Class) - [You must be registered and logged in to see this link.]
O16 - DPF: {D27CDB6E-AE6D-11CF-96B8-444553540000} (Shockwave Flash Object) - [You must be registered and logged in to see this link.]
O18 - Protocol: linkscanner - {F274614C-63F8-47D5-A4D1-FBDDE494F8D1} - C:\Program Files\AVG\AVG9\avgpp.dll
O20 - Winlogon Notify: avgrsstarter - C:\WINDOWS\SYSTEM32\avgrsstx.dll
O23 - Service: ANIWZCSd Service (ANIWZCSdService) - Wireless Service - C:\Program Files\ANI\ANIWZCS2 Service\ANIWZCSdS.exe
O23 - Service: AVG Free E-mail Scanner (avg9emc) - AVG Technologies CZ, s.r.o. - C:\Program Files\AVG\AVG9\avgemc.exe
O23 - Service: AVG Free WatchDog (avg9wd) - AVG Technologies CZ, s.r.o. - C:\Program Files\AVG\AVG9\avgwdsvc.exe
O23 - Service: Google Updater Service (gusvc) - Google - C:\Program Files\Google\Common\Google Updater\GoogleUpdaterService.exe
O23 - Service: Java Quick Starter (JavaQuickStarterService) - Sun Microsystems, Inc. - C:\Program Files\Java\jre6\bin\jqs.exe
O23 - Service: LogMeIn Maintenance Service (LMIMaint) - LogMeIn, Inc. - C:\Program Files\LogMeIn\x86\RaMaint.exe
O23 - Service: LogMeIn - LogMeIn, Inc. - C:\Program Files\LogMeIn\x86\LogMeIn.exe
O23 - Service: SoundMAX Agent Service (SoundMAX Agent Service (default)) - Analog Devices, Inc. - C:\Program Files\Analog Devices\SoundMAX\SMAgent.exe

--
End of file - 6347 bytes


Last edited by caddickj on 25th November 2009, 6:03 am; edited 1 time in total (Reason for editing : fixed stop error note)

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Re: cryptor in csrss.exe?

Post by caddickj on 25th November 2009, 5:36 am

Ah... I forgot to say that the AVG entries I keep getting are:

C:\Windows\system32\csrss.exe (808): \memory_00270000
C:\Windows\system32\csrss.exe (808)

Both say virus detected Win32/Cryptor.

Looking at the log history, the first is supposedly put in the Vault, and the second says "Reboot Required" but that's after I've already rebooted.

I've also used MalwareBytes, but I installed that while the false antivirus was doing it's stuff and kept getting errors. Is it possible that installation itself is corrupted/infected?

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Re: cryptor in csrss.exe?

Post by Belahzur on 25th November 2009, 7:41 pm

Hello.

  • Open HijackThis
  • Choose "Do a system scan only"
  • Check the boxes in front of these lines:


    R0 - HKCU\Software\Microsoft\Internet Explorer\Main,Start Page = about:blank



  • Press "Fix Checked"
  • Close Hijack This.

Please download and run this tool.

Download Malwarebytes' Anti-Malware from [You must be registered and logged in to see this link.]

Double Click mbam-setup.exe to install the application.

  • Make sure a checkmark is placed next to Update Malwarebytes' Anti-Malware and Launch Malwarebytes' Anti-Malware, then click Finish.
  • If an update is found, it will download and install the latest version.
  • Once the program has loaded, select "Perform Quick Scan", then click Scan.
  • The scan may take some time to finish,so please be patient.
  • When the scan is complete, click OK, then Show Results to view the results.
  • Make sure that everything is checked, and click Remove Selected.
  • When disinfection is completed, a log will open in Notepad and you may be prompted to Restart. (See Note)
  • The log is automatically saved by MBAM and can be viewed by clicking the Logs tab in MBAM.
Note:
If MBAM encounters a file that is difficult to remove, you will be presented with 1 of 2 prompts.
Click OK to either and let MBAM proceed with the disinfection process.
If asked to restart the computer, please do so immediately.


Post the contents of the MBAM Log.


[You must be registered and logged in to see this link.] - [You must be registered and logged in to see this link.] - Please PM me if I fail to respond within 24hrs.


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