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Trojan Horse IRC/Backdoor.SdBot.202.AU

1.6K views 3 replies 2 participants last post by  Glaswegian  
#1 · (Edited)
Hi
The above is the Trojan Horse found during AVG scan.

Path
C:\WINDOWS\System 32\setup_53360.exe

My Hijackthis log:

Logfile of Trend Micro HijackThis v2.0.2
Scan saved at 8:59:24 PM, on 2/21/2008
Platform: Windows XP SP1 (WinNT 5.01.2600)
MSIE: Internet Explorer v6.00 SP1 (6.00.2800.1106)
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:\WINDOWS\system32\ZoneLabs\vsmon.exe
C:\WINDOWS\Explorer.EXE
C:\Program Files\BillP Studios\WinPatrol\winpatrol.exe
C:\Program Files\Zone Labs\ZoneAlarm\zlclient.exe
C:\Program Files\Lavasoft\Ad-Aware 2007\aawservice.exe
C:\PROGRA~1\Grisoft\AVG7\avgcc.exe
C:\Program Files\SpywareGuard\sgmain.exe
C:\Program Files\SpywareGuard\sgbhp.exe
C:\WINDOWS\system32\spoolsv.exe
C:\Program Files\Grisoft\AVG Anti-Spyware 7.5\guard.exe
C:\PROGRA~1\Grisoft\AVG7\avgamsvr.exe
C:\PROGRA~1\Grisoft\AVG7\avgupsvc.exe
C:\PROGRA~1\Grisoft\AVG7\avgemc.exe
C:\WINDOWS\System32\dmadmin.exe
C:\Program Files\Grisoft\AVG7\avgwb.dat
C:\Program Files\Trend Micro\HijackThis\HijackThis.exe

R0 - HKCU\Software\Microsoft\Internet Explorer\Main,Start Page = http://www.yahoo.com/
R0 - HKCU\Software\Microsoft\Internet Explorer\Main,Local Page =
R0 - HKLM\Software\Microsoft\Internet Explorer\Main,Local Page =
O2 - BHO: CKeyScramblerBHO Object - {2B9F5787-88A5-4945-90E7-C4B18563BC5E} - C:\Program Files\KeyScrambler\KeyScramblerIE.dll
O2 - BHO: SpywareGuard Download Protection - {4A368E80-174F-4872-96B5-0B27DDD11DB2} - C:\Program Files\SpywareGuard\dlprotect.dll
O2 - BHO: Spybot-S&D IE Protection - {53707962-6F74-2D53-2644-206D7942484F} - C:\PROGRA~1\Spybot - Search & Destroy\SDHelper.dll
O2 - BHO: SSVHelper Class - {761497BB-D6F0-462C-B6EB-D4DAF1D92D43} - C:\Program Files\Java\jre1.6.0_02\bin\ssv.dll
O2 - BHO: ZoneAlarm Spy Blocker BHO - {F0D4B231-DA4B-4daf-81E4-DFEE4931A4AA} - C:\Program Files\ZoneAlarmSB\bar\1.bin\SPYBLOCK.DLL
O3 - Toolbar: ZoneAlarm Spy Blocker - {F0D4B239-DA4B-4daf-81E4-DFEE4931A4AA} - C:\Program Files\ZoneAlarmSB\bar\1.bin\SPYBLOCK.DLL
O3 - Toolbar: &Radio - {8E718888-423F-11D2-876E-00A0C9082467} - C:\WINDOWS\System32\msdxm.ocx
O4 - HKLM\..\Run: [WinPatrol] C:\Program Files\BillP Studios\WinPatrol\winpatrol.exe
O4 - HKLM\..\Run: [ZoneAlarm Client] "C:\Program Files\Zone Labs\ZoneAlarm\zlclient.exe"
O4 - HKLM\..\Run: [!AVG Anti-Spyware] "C:\Program Files\Grisoft\AVG Anti-Spyware 7.5\avgas.exe" /minimized
O4 - HKLM\..\Run: [AVG7_CC] C:\PROGRA~1\Grisoft\AVG7\avgcc.exe /STARTUP
O4 - HKUS\S-1-5-19\..\Run: [AVG7_Run] C:\PROGRA~1\Grisoft\AVG7\avgw.exe /RUNONCE (User 'LOCAL SERVICE')
O4 - HKUS\S-1-5-20\..\Run: [AVG7_Run] C:\PROGRA~1\Grisoft\AVG7\avgw.exe /RUNONCE (User 'NETWORK SERVICE')
O4 - HKUS\S-1-5-18\..\Run: [AVG7_Run] C:\PROGRA~1\Grisoft\AVG7\avgw.exe /RUNONCE (User 'SYSTEM')
O4 - HKUS\.DEFAULT\..\Run: [AVG7_Run] C:\PROGRA~1\Grisoft\AVG7\avgw.exe /RUNONCE (User 'Default user')
O4 - Startup: SpywareGuard.lnk = C:\Program Files\SpywareGuard\sgmain.exe
O8 - Extra context menu item: E&xport to Microsoft Excel - res://C:\PROGRA~1\MICROS~2\Office10\EXCEL.EXE/3000
O9 - Extra button: (no name) - {5C106A59-CC3C-4caa-81A4-6D909B5ACE23} - C:\Program Files\KeyScrambler\KeyScramblerIE.dll
O9 - Extra 'Tools' menuitem: &KeyScrambler... - {5C106A59-CC3C-4caa-81A4-6D909B5ACE23} - C:\Program Files\KeyScrambler\KeyScramblerIE.dll
O9 - Extra button: (no name) - {DFB852A3-47F8-48C4-A200-58CAB36FD2A2} - C:\PROGRA~1\Spybot - Search & Destroy\SDHelper.dll
O9 - Extra 'Tools' menuitem: Spybot - Search & Destroy Configuration - {DFB852A3-47F8-48C4-A200-58CAB36FD2A2} - C:\PROGRA~1\Spybot - Search & Destroy\SDHelper.dll
O17 - HKLM\System\CCS\Services\Tcpip\..\{644D3823-5BA8-4D38-8D42-578583FD3EDC}: NameServer = 202.188.0.133 202.188.1.5
O23 - Service: Ad-Aware 2007 Service (aawservice) - Lavasoft - C:\Program Files\Lavasoft\Ad-Aware 2007\aawservice.exe
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: AVG E-mail Scanner (AVGEMS) - GRISOFT, s.r.o. - C:\PROGRA~1\Grisoft\AVG7\avgemc.exe
O23 - Service: TrueVector Internet Monitor (vsmon) - Zone Labs, LLC - C:\WINDOWS\system32\ZoneLabs\vsmon.exe

--
End of file - 4501 bytes


Any help please?
Thanks
 
#2 ·
Hi and welcome to the Security Forum.

My name is Iain and I will be helping you clean your system.

You may wish to Subscribe to this thread (Thread Tools > Subscribe to this thread) so that you are notified when you receive a reply.

Please read these instructions carefully and then print out or copy this page to Notepad in order to assist you when carrying out the fix. You should not have any open browsers or live internet connections when you are following the procedures below.

Note that the fix may take several posts. Please continue to respond to my instructions until I confirm that your logs are clean. Remember that although your symptoms may vanish, this does NOT mean that your system is clean.

If there is anything you don't understand, please ask BEFORE proceeding with the fixes.

Please ensure that you follow the instructions in the order I have them listed.


Download SDFix and save it to your desktop.
Do not do anything with this yet!



Reboot
Reboot your system in Safe Mode.
  • Restart the computer. The computer begins processing a set of instructions known as BIOS.
  • After hearing your computer beep once during startup, but before the Windows icon appears, press F8 (dependent on your system this may be F5 or another key)
  • Instead of Windows loading as normal, a menu should appear
  • Use the arrow key to highlight Safe Mode and press Enter.



SDBot Fix
  • Right click the SDFix.zip folder and choose Extract All,
  • Open the extracted folder and double click RunThis.bat to start the script.
  • Type Y to begin the script.
  • It will remove the Trojan Services then make some repairs to the registry and prompt you to press any key to Reboot.
  • Press any Key and it will restart the PC.
  • Your system will take longer that normal to restart as the fixtool will be running and removing files.
  • When the desktop loads the Fixtool will complete the removal and display Finished, then press any key to end the script and load your desktop icons.
  • Once the desktop icons load the SDFix report will open on screen and also save into the SDFix folder as Report.txt
    (Report.txt will also be copied to the Clipboard ready for posting back on the forum).
  • Finally paste the contents of the Report.txt back here.



Now we'll use ComboFix. Please visit this webpage for download links, and instructions for running the tool: http://www.bleepingcomputer.com/combofix/how-to-use-combofix

Please ensure you read this guide carefully and install the Recovery Console. This will help us restore your system in the event of a serious crash.

  • When the tool is finished, it will produce a report for you.
  • Please post C:\ComboFix.txt along with a new HijackThis log so we may continue cleaning the system.

NOTE: Combofix prevents autorun of all CDs, floppies and USB devices to assist with malware removal & increase security. If this is an issue or makes it difficult for you - please let me know.
 
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