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Trojans slowing down computer - How to remove them?


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7 replies to this topic

#1 darkskye

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Posted 02 November 2008 - 04:56 PM

Hello,

I have been on here for the same problem about 5 or 6 months ago. Trojans have infested my computer yet again. I tried using the help I was given last time, but they were different trojans last time. Below is some information.

- OS is Windows XP Home.
- I use Avast antivirus, Super AntiSpyware and Spybot Search and Destroy.
- The trojans and other viruses are showing up in my Avast virus scan.
- I tried using the autorun program and deleting the programs that were not suppose to be on my computer starting up, however that did not help.
- I also did scans in safe mode as well.
- The following viruses showed up on my Avast scan:

- About 6 of the Win32:trojan-gen
- Win32: Agent-PSI[Rtk]

In my SuperAnti Spyware and Spybot Search and Destroy malware was found but was successfully deleted. My only problems are those that were found in the Avast antivirus.
Any help would be great.

Thank you,
Darkskye

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#2 boopme

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Posted 02 November 2008 - 10:31 PM

Hello a few basic questions first. Did Avast remove these and they keep returning? Have you updated the scanners prior to use? Do you have the Teatimer application of SpyBot active?

Run this scan also:
Please download Malwarebytes Anti-Malware and save it to your desktop.
  • Make sure you are connected to the Internet.
  • Double-click on mbam-setup.exe to install the application.
  • When the installation begins, follow the prompts and do not make any changes to default settings.
  • When installation has finished, make sure you leave both of these checked:
    • Update Malwarebytes' Anti-Malware
    • Launch Malwarebytes' Anti-Malware
  • Then click Finish.
  • MBAM will automatically start and you will be asked to update the program before performing a scan. If an update is found, the program will automatically update itself. Press the OK button to close that box and continue. If you encounter any problems while downloading the updates, manually download them from here and just double-click on mbam-rules.exe to install.
  • On the Scanner tab:
    • Make sure the "Perform Quick Scan" option is selected.
    • Then click on the Scan button.
  • If asked to select the drives to scan, leave all the drives selected and click on the Start Scan button.
  • The scan will begin and "Scan in progress" will show at the top. It may take some time to complete so please be patient.
  • When the scan is finished, a message box will say "The scan completed successfully. Click 'Show Results' to display all objects found".
  • Click OK to close the message box and continue with the removal process.
  • Back at the main Scanner screen, click on the Show Results button to see a list of any malware that was found.
  • Make sure that everything is checked, and click Remove Selected.
  • When removal is completed, a log report will open in Notepad.
  • The log is automatically saved and can be viewed by clicking the Logs tab in MBAM.
  • Copy and paste the contents of that report in your next reply and exit MBAM.
Note: If MBAM encounters a file that is difficult to remove, you may be asked to reboot your computer so it can proceed with the disinfection process. Regardless if prompted to restart the computer or not, please do so immediately. Failure to reboot normally (not into safe mode) will prevent MBAM from removing all the malware. MBAM may make changes to your registry as part of its disinfection routine. If you're using other security programs that detect registry changes, they may alert you after scanning with MBAM. Please permit the program to allow the changes.
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#3 darkskye

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Posted 03 November 2008 - 07:20 PM

Hello,

No, avast antivirus is not able to remove them. Yes, I have updated before scanning and I'm not quite sure what the teatime application is. By the way, thank you for you help. :thumbsup:
Here is the results from the MBAM scan.


Malwarebytes' Anti-Malware 1.30
Database version: 1361
Windows 5.1.2600 Service Pack 2

11/3/2008 8:03:25 PM
mbam-log-2008-11-03 (20-03-25).txt

Scan type: Quick Scan
Objects scanned: 57310
Time elapsed: 17 minute(s), 50 second(s)

Memory Processes Infected: 0
Memory Modules Infected: 0
Registry Keys Infected: 7
Registry Values Infected: 0
Registry Data Items Infected: 0
Folders Infected: 0
Files Infected: 1

Memory Processes Infected:
(No malicious items detected)

Memory Modules Infected:
(No malicious items detected)

Registry Keys Infected:
HKEY_CLASSES_ROOT\Typelib\{50ccd00a-66b6-4d95-aaef-8ee959498f92} (Trojan.FakeAlert) -> Quarantined and deleted successfully.
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\tdssdata (Trojan.Agent) -> Quarantined and deleted successfully.
HKEY_LOCAL_MACHINE\SOFTWARE\tdss (Trojan.Agent) -> Quarantined and deleted successfully.
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\tdssserv (Rootkit.Agent) -> Quarantined and deleted successfully.
HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\Services\tdssserv (Trojan.Agent) -> Quarantined and deleted successfully.
HKEY_LOCAL_MACHINE\SYSTEM\ControlSet003\Services\tdssserv (Trojan.Agent) -> Quarantined and deleted successfully.
HKEY_CLASSES_ROOT\stfngdvw.1 (Trojan.FakeAlert) -> Quarantined and deleted successfully.

Registry Values Infected:
(No malicious items detected)

Registry Data Items Infected:
(No malicious items detected)

Folders Infected:
(No malicious items detected)

Files Infected:
C:\WINDOWS\system32\drivers\TDSSserv.sys (Trojan.Agent) -> Quarantined and deleted successfully.

#4 boopme

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Posted 03 November 2008 - 10:53 PM

At this point I have to tell you that TDSSserv.sys is a very bad piece of malware it is a Rootkit. Please read post #2 here by quietman7 as it explains it all very well. Then tell us how you wish to proceed,thank you.

http://www.bleepingcomputer.com/forums/ind...rootkit+warning
How do I get help? Who is helping me?For the time will come when men will not put up with sound doctrine. Instead, to suit their own desires, they will gather around them a great number of teachers to say what their itching ears want to hear....Become a BleepingComputer fan: Facebook

#5 darkskye

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Posted 06 November 2008 - 03:29 PM

Well, that's not good news. I guess my best bet is to re-format my computer, considering I have done online banking, etc on this computer I think it best to make sure it is removed. Is there any guides available as to how I can re-format my computer? Also, is there any way I would know if my banking information as been stolen, etc?
Thank you for all your help.
Darkskye

#6 boopme

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Posted 06 November 2008 - 08:22 PM

That is to me the wise choice. better safe than sorry. It's unfortunate that these creeps exist. I would say it best to ask the reinstall info in the XP forum up top. There are excellent advisors and mods there to help you thru the whole thing and we dont tie up the malware forum. You are quite welcome for the help.

Please read and note this link for after reinstall to help prevent this from reoccurring.
POST #10
http://www.bleepingcomputer.com/forums/top...tml#entry829374

To protect yourself against malware infection, be sure to read:
"Simple and easy ways to keep your computer safe".
"How did I get infected?, With steps so it does not happen again!".
"Best Practices - Internet Safety for 2008".
"Hardening Windows Security - Part 1 & Part 2".
"IE Recommended Minimal Security Settings".
"How to Set Security Options in the Firefox Browser"
How do I get help? Who is helping me?For the time will come when men will not put up with sound doctrine. Instead, to suit their own desires, they will gather around them a great number of teachers to say what their itching ears want to hear....Become a BleepingComputer fan: Facebook

#7 darkskye

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Posted 06 November 2008 - 10:37 PM

Thank you for everything :thumbsup:

Darkskye

#8 boopme

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Posted 06 November 2008 - 10:45 PM

You're welcome :thumbsup:
How do I get help? Who is helping me?For the time will come when men will not put up with sound doctrine. Instead, to suit their own desires, they will gather around them a great number of teachers to say what their itching ears want to hear....Become a BleepingComputer fan: Facebook




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