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Dropper.Agent.GIT problem


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#1 VLegacy

VLegacy

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Posted 09 January 2008 - 08:36 PM

I'm running Vista, and have gotten infected. AVG (fully updated) warns me that it has detected the trojan "Dropper.Agent.GIT" in various DLL and EXE files under C:\Users\<user name>\AppData\Local\Temp. Each time, it says it has removed them successfully after I tell it to do so (sometimes requiring that I reboot), but different files with the same virus keep appearing there. Scanning with Spybot doesn't turn anything up, and I installed AVG AntiVirus and AdAware 2007, but neither will run.

I also installed Avast Antivirus, and it had me reboot so that it could run a scan during the boot process. I did so, and when it detected DLL files in the above temp folder, I had it delete them. Upon booting back into Vista, new ones were present. Since then, Avast has steadfastly refused to run, crashing when I try to start it.

In the case of all the infected files detected, Windows won't let me delete them myself, and Unlocker fails in this task, as well.

There is also always an entry in the registry telling rundll32 to execute one of these DLL files on startup, and every time I remove it or change the value (either manually with regedit or with the startup program editor in CCleaner), it comes back right away. The current entry is:

HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run

Name - Type - Data
MSServer - REG_SZ - rundll32.exe C:\Users\<beginning of user name>~1\AppData\Local\Temp\mljjg.dll,#1

Near the start of all this, AVG also found the trojan Generic9.AMQN, in the file C:\Users\<user name>\AppData\Local\Temp\yabcc.dll. That's one of the files Avast subsequently deleted during its boot-time scan, however, and that virus hasn't been detected since then. Before being deleted, it infected some of my startup files (according to AVG's Virus Vault: utorrent.exe, SynTPEnh,exe, pidgin.exe, jusched.exe, issch.exe, NeroCheck.exe, isuspm.exe, and AVG's avgcc.exe). It promptly deleted at least some of these files, crippling those applications. I repaired AVG using the latest installer from free.grisoft.com.

Other strains detected and successfully removed (or at least not detected again afterward): the trojans PSW.Generic5.AFKC and Dialer.QQN

Here's my HijackThis log file:

Logfile of HijackThis v1.99.1
Scan saved at 9:02:12 PM, on 1/9/2008
Platform: Unknown Windows (WinNT 6.00.1904)
MSIE: Internet Explorer v7.00 (7.00.6000.16575)

Running processes:
C:\Windows\system32\taskeng.exe
C:\Windows\system32\Dwm.exe
C:\Windows\Explorer.EXE
C:\Program Files\Windows Defender\MSASCui.exe
C:\Windows\sttray.exe
C:\Windows\System32\rundll32.exe
C:\Windows\System32\rundll32.exe
C:\Program Files\Grisoft\AVG7\avgcc.exe
C:\Program Files\Last.fm\LastFMHelper.exe
C:\Windows\System32\rundll32.exe
C:\Windows\system32\taskmgr.exe
C:\Program Files\Mozilla Firefox 3 Beta 1\firefox.exe
C:\Program Files\Adobe\Reader 8.0\Reader\AcroRd32.exe
C:\Program Files\Hijackthis\HijackThis.exe

R1 - HKCU\Software\Microsoft\Internet Explorer\Main,Search Page = http://go.microsoft....k/?LinkId=54896
R1 - HKLM\Software\Microsoft\Internet Explorer\Main,Default_Page_URL = http://go.microsoft....k/?LinkId=69157
R1 - HKLM\Software\Microsoft\Internet Explorer\Main,Default_Search_URL = http://go.microsoft....k/?LinkId=54896
R1 - HKLM\Software\Microsoft\Internet Explorer\Main,Search Page = http://go.microsoft....k/?LinkId=54896
R0 - HKLM\Software\Microsoft\Internet Explorer\Main,Start Page = http://go.microsoft....k/?LinkId=69157
R0 - HKLM\Software\Microsoft\Internet Explorer\Search,SearchAssistant =
R0 - HKLM\Software\Microsoft\Internet Explorer\Search,CustomizeSearch =
R1 - HKCU\Software\Microsoft\Windows\CurrentVersion\Internet Settings,ProxyOverride = *.local
R0 - HKCU\Software\Microsoft\Internet Explorer\Toolbar,LinksFolderName =
F3 - REG:win.ini: load=C:\Users\MATTHE~1\AppData\Local\Temp\jkhec.exe
O1 - Hosts: ::1 localhost
O2 - BHO: Adobe PDF Reader Link Helper - {06849E9F-C8D7-4D59-B87D-784B7D6BE0B3} - C:\Program Files\Common Files\Adobe\Acrobat\ActiveX\AcroIEHelper.dll
O2 - BHO: SSVHelper Class - {761497BB-D6F0-462C-B6EB-D4DAF1D92D43} - C:\Program Files\Java\jre1.6.0_03\bin\ssv.dll
O2 - BHO: IE Developer Toolbar BHO - {CC7E636D-39AA-49b6-B511-65413DA137A1} - C:\Program Files\Microsoft\Internet Explorer Developer Toolbar\IEDevToolbar.dll
O2 - BHO: (no name) - {DECD8587-097B-43F2-93F5-2923CC1F1A6C} - (no file)
O4 - HKLM\..\Run: [Windows Defender] %ProgramFiles%\Windows Defender\MSASCui.exe -hide
O4 - HKLM\..\Run: [SigmatelSysTrayApp] sttray.exe
O4 - HKLM\..\Run: [NvSvc] RUNDLL32.EXE C:\Windows\system32\nvsvc.dll,nvsvcStart
O4 - HKLM\..\Run: [NvCplDaemon] RUNDLL32.EXE C:\Windows\system32\NvCpl.dll,NvStartup
O4 - HKLM\..\Run: [NvMediaCenter] RUNDLL32.EXE C:\Windows\system32\NvMcTray.dll,NvTaskbarInit
O4 - HKLM\..\Run: [NVHotkey] rundll32.exe C:\Windows\system32\nvHotkey.dll,Start
O4 - HKLM\..\Run: [AVG7_CC] C:\PROGRA~1\Grisoft\AVG7\avgcc.exe /STARTUP
O4 - HKLM\..\Run: [!AVG Anti-Spyware] "C:\Program Files\Grisoft\AVG Anti-Spyware 7.5\avgas.exe" /minimized
O4 - HKLM\..\Run: [avast!] C:\PROGRA~1\ALWILS~1\Avast4\ashDisp.exe
O4 - HKCU\..\Run: [MSServer] rundll32.exe C:\Users\MATTHE~1\AppData\Local\Temp\mljjg.dll,#1
O4 - Startup: Last.fm Helper.lnk = C:\Program Files\Last.fm\LastFMHelper.exe
O8 - Extra context menu item: E&xport to Microsoft Excel - res://C:\PROGRA~1\MICROS~1\OFFICE11\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
O9 - Extra button: IE Developer Toolbar - {48FFE35F-36D9-44bd-A6CC-1D34414EAC0D} - C:\Program Files\Microsoft\Internet Explorer Developer Toolbar\IEDevToolbar.dll
O9 - Extra button: Research - {92780B25-18CC-41C8-B9BE-3C9C571A8263} - C:\PROGRA~1\MICROS~1\OFFICE11\REFIEBAR.DLL
O10 - Unknown file in Winsock LSP: c:\windows\system32\nlaapi.dll
O10 - Unknown file in Winsock LSP: c:\windows\system32\napinsp.dll
O10 - Unknown file in Winsock LSP: c:\program files\bonjour\mdnsnsp.dll
O11 - Options group: [INTERNATIONAL] International*
O13 - Gopher Prefix:
O16 - DPF: {49312E18-AA92-4CC2-BB97-55DEA7BCADD6} (WMI Class) - http://support.dell....r/SysProExe.CAB
O20 - Winlogon Notify: avgwlntf - C:\Windows\SYSTEM32\avgwlntf.dll
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 - Unknown owner - C:\Program Files\Alwil Software\Avast4\ashMaiSv.exe" /service (file missing)
O23 - Service: avast! Web Scanner - Unknown owner - C:\Program Files\Alwil Software\Avast4\ashWebSv.exe" /service (file missing)
O23 - Service: AVG Anti-Spyware Guard - GRISOFT s.r.o. - C:\Program Files\Grisoft\AVG Anti-Spyware 7.5\guard.exe
O23 - Service: AVG7 Alert Manager Server (Avg7Alrt) - GRISOFT, s.r.o. - C:\PROGRA~1\Grisoft\AVG7\avgamsvr.exe
O23 - Service: AVG7 Update Service (Avg7UpdSvc) - GRISOFT, s.r.o. - C:\PROGRA~1\Grisoft\AVG7\avgupsvc.exe
O23 - Service: AVG7 Resident Shield Service (AvgCoreSvc) - GRISOFT, s.r.o. - C:\PROGRA~1\Grisoft\AVG7\avgrssvc.exe
O23 - Service: AVG E-mail Scanner (AVGEMS) - GRISOFT, s.r.o. - C:\PROGRA~1\Grisoft\AVG7\avgemc.exe
O23 - Service: ##Id_String1.6844F930_1628_4223_B5CC_5BB94B879762## (Bonjour Service) - Apple Computer, Inc. - C:\Program Files\Bonjour\mDNSResponder.exe
O23 - Service: FLEXnet Licensing Service - Macrovision Europe Ltd. - C:\Program Files\Common Files\Macrovision Shared\FLEXnet Publisher\FNPLicensingService.exe
O23 - Service: NBService - Nero AG - C:\Program Files\Nero\Nero 7\Nero BackItUp\NBService.exe
O23 - Service: @%SystemRoot%\system32\qwave.dll,-1 (QWAVE) - Unknown owner - %windir%\system32\svchost.exe (file missing)
O23 - Service: @%SystemRoot%\system32\seclogon.dll,-7001 (seclogon) - Unknown owner - %windir%\system32\svchost.exe (file missing)
O23 - Service: SigmaTel Audio Service (STacSV) - SigmaTel, Inc. - C:\Program Files\SigmaTel\C-Major Audio\WDM\STacSV.exe
O23 - Service: @%ProgramFiles%\Windows Media Player\wmpnetwk.exe,-101 (WMPNetworkSvc) - Unknown owner - %ProgramFiles%\Windows Media Player\wmpnetwk.exe (file missing)

Any help would be greatly appreciated. Thanks!

Edited by VLegacy, 09 January 2008 - 08:38 PM.

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#2 LDTate

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Posted 17 January 2008 - 04:14 PM

Hello and welcome to the forum. Sorry about the delay in responding :( If you still need help, Scan again with HijackThis, and copy/paste" a new log file into this thread. Also please describe how your computer behaves at the moment.

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