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Trojan Horse BackDoor.Generic 12 AAVT


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3 replies to this topic

#1 bikerider

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Posted 30 January 2010 - 12:01 PM

Hello I am trying to fix a problem with an XP computer. IE and Firefox will not start. AVG has had failed updates for two weeks. Spy Bot does not find anything. Spy-ware Doctor did not find anything. Ad Aware did not find anything. Malwarebytes twice found Trojan.Agent in IE and Quarantined it. AVG detects Trojan Horse BackDoor.Generic 12 AAVT every time I run a spy-ware program and quarantines it. Any help would be appreciated. Thank You Ian

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#2 garmanma

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Posted 31 January 2010 - 10:06 PM

:inlove:
Update mbam and run a FULL scan
Please post the results
===================

:flowers:
Please download TFC by Old Timer and save it to your desktop.
alternate download link
  • Save any unsaved work. TFC will close ALL open programs including your browser!
  • Double-click on TFC.exe to run it. If you are using Vista, right-click on the file and choose Run As Administrator.
  • Click the Start button to begin the cleaning process and let it run uninterrupted to completion.
  • Important! If TFC prompts you to reboot, please do so immediately. If not prompted, manually reboot the machine anyway to ensure a complete clean.
===========================

:thumbsup:
SAS, may take a long time to scan
Please download and scan with SUPERAntiSpyware Free
  • Double-click SUPERAntiSypware.exe and use the default settings for installation.
  • An icon will be created on your desktop. Double-click that icon to launch the program.
  • If asked to update the program definitions, click "Yes". If not, update the definitions before scanning by selecting "Check for Updates". (If you encounter any problems while downloading the updates, manually download them from here. Double-click on the hyperlink for Download Installer and save SASDEFINITIONS.EXE to your desktop. Then double-click on SASDEFINITIONS.EXE to install the definitions.)
  • In the Main Menu, click the Preferences... button.
  • Click the "General and Startup" tab, and under Start-up Options, make sure "Start SUPERAntiSpyware when Windows starts" box is unchecked.
  • Click the "Scanning Control" tab, and under Scanner Options, make sure the following are checked (leave all others unchecked):
    • Close browsers before scanning.
    • Scan for tracking cookies.
    • Terminate memory threats before quarantining.
  • Click the "Close" button to leave the control center screen and exit the program.
  • Do not run a scan just yet.
    First
Reboot your computer in "Safe Mode" using the F8 method. To do this, restart your computer and after hearing your computer beep once during startup (but before the Windows icon appears) press the F8 key repeatedly. A menu will appear with several options. Use the arrow keys to navigate and select the option to run Windows in "Safe Mode".

Scan with SUPERAntiSpyware as follows:
  • Launch the program and back on the main screen, under "Scan for Harmful Software" click Scan your computer.
  • On the left, make sure you check C:\Fixed Drive.
  • On the right, under "Complete Scan", choose Perform Complete Scan and click "Next".
  • After the scan is complete, a Scan Summary box will appear with potentially harmful items that were detected. Click "OK".
  • Make sure everything has a checkmark next to it and click "Next".
  • A notification will appear that "Quarantine and Removal is Complete". Click "OK" and then click the "Finish" button to return to the main menu.
  • If asked if you want to reboot, click "Yes" and reboot normally.
  • To retrieve the removal information after reboot, launch SUPERAntispyware again.
    • Click Preferences, then click the Statistics/Logs tab.
    • Under Scanner Logs, double-click SUPERAntiSpyware Scan Log.
    • If there are several logs, click the current dated log and press View log. A text file will open in your default text editor.
    • Please copy and paste the Scan Log results in your next reply.
  • Click Close to exit the program.
Note.. SAS doesn't open the registry hives for other user accounts on the system, so scans should be done from each user account.

===================================

:trumpet:
Please download Dr.Web CureIt, the free version & save it to your desktop. DO NOT perform a scan yet.

Reboot your computer in "Safe Mode" using the F8 method. To do this, restart your computer and after hearing your computer beep once during startup (but before the Windows icon appears) press the F8 key repeatedly. A menu will appear with several options. Use the arrow keys to navigate and select the option to run Windows in "Safe Mode".

Scan with Dr.Web CureIt as follows:
  • Double-click on launch.exe to open the program and click Start. (There is no need to update if you just downloaded the most current version
  • Read the Virus check by DrWeb scanner prompt and click Ok where asked to Start scan now? Allow the setup.exe to load if asked by any of your security programs.
  • The Express scan will automatically begin.
    (This is a short scan of files currently running in memory, boot sectors, and targeted folders).
  • If prompted to dowload the Full version Free Trial, ignore and click the X to close the window.
  • If an infected object is found, you will be prompted to move anything that cannot be cured. Click Yes to All.
  • When complete, click Select All, then choose Cure > Move incurable.
    (This will move any detected files to the C:\Documents and Settings\userprofile\DoctorWeb\Quarantine folder if they can't be cured)
  • Now put a check next to Complete scan to scan all local disks and removable media.
  • In the top menu, click Settings > Change settings, and UNcheck "Heuristic analysis" under the "Scanning" tab, then click Ok.
  • Back at the main window, click the green arrow "Start Scanning" button on the right under the Dr.Web logo.
  • When the scan is complete, a message will be displayed at the bottom indicating if any viruses were found.
  • Click "Yes to all" if asked to cure or move the file(s) and select "Move incurable".
  • In the top menu, click file and choose save report list.
  • Save the DrWeb.csv report to your desktop.
  • Exit Dr.Web Cureit when done.
  • Important! Reboot your computer because it could be possible that files in use will be moved/deleted during reboot.
  • After reboot, post the contents of the log from Dr.Web in your next reply. (You can use Notepad to open the DrWeb.cvs report)

Edited by garmanma, 31 January 2010 - 10:06 PM.

Mark
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why won't my laptop work?

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Do not send me PMs with problems that should be posted in the forums. Keep it in the forums, so everyone benefits
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#3 bikerider

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Posted 05 February 2010 - 11:05 PM

Hello Thank you for helping, sorry it took so long, I half to do all the internet stuff on my computer then transfer it to the infected computer and then the files back and only have an hour or two each day to work on it. I hope there is no risk to my computer in transferring the log files back to the internet. How do I get a file for Dr. Web??? I had to leave while it was running and when I got back an hour later it had closed, now when I open it I cannot find a menu to access the log file. I know that Dr. Web found at least 6 items and fixed them before I left. Here are the MBAM log and the Super Antispayware log. Also any time I run any scan AVG pops up a massage that it detected the Trojan Horse Back Door. Generic 12 AAVT on opening and has quarantined it. This is still happening. Thank you for your help.


Malwarebytes' Anti-Malware 1.44
Database version: 3664
Windows 5.1.2600 Service Pack 3
Internet Explorer 8.0.6001.18702

2/2/2010 11:25:29 PM
mbam-log-2010-02-02 (23-24-53).txt

Scan type: Full Scan (C:\|D:\|)
Objects scanned: 227085
Time elapsed: 1 hour(s), 16 minute(s), 0 second(s)

Memory Processes Infected: 0
Memory Modules Infected: 0
Registry Keys Infected: 1
Registry Values Infected: 0
Registry Data Items Infected: 0
Folders Infected: 0
Files Infected: 3

Memory Processes Infected:
(No malicious items detected)

Memory Modules Infected:
(No malicious items detected)

Registry Keys Infected:
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Internet Explorer\Main\{F9197A7E-CE10-458e-85F8-5B0CE6DF2BBE} (Trojan.Agent) -> No action taken.

Registry Values Infected:
(No malicious items detected)

Registry Data Items Infected:
(No malicious items detected)

Folders Infected:
(No malicious items detected)

Files Infected:
C:\ComboFix\Combo-Fix.sys (Malware.Trace) -> No action taken.
C:\ComboFix\PV.cfxxe (Adware.Swizzor) -> No action taken.
C:\ComboFix\pv.com (Adware.Swizzor) -> No action taken.




SUPERAntiSpyware Scan Log
http://www.superantispyware.com

Generated 02/03/2010 at 11:08 PM

Application Version : 4.33.1000

Core Rules Database Version : 4446
Trace Rules Database Version: 1978

Scan type : Complete Scan
Total Scan Time : 00:48:23

Memory items scanned : 243
Memory threats detected : 0
Registry items scanned : 5573
Registry threats detected : 0
File items scanned : 107589
File threats detected : 0

#4 garmanma

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Posted 06 February 2010 - 07:16 PM

I see that you are being helped at whatthetech.com
http://forums.whatthetech.com/Trojan_Horse...VT_t109934.html
Since he has all of your GMER and DDS logs, please continue with them

This topic will be closed to prevent any conflicting advice
Good luck

Edited by garmanma, 06 February 2010 - 07:30 PM.

Mark
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why won't my laptop work?

Having grandkids is God's way of giving you a 2nd chance because you were too busy working your butt off the 1st time around
Do not send me PMs with problems that should be posted in the forums. Keep it in the forums, so everyone benefits
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