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Trojan.Backdoor - System Volume


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#1 cornybread

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Posted 27 February 2012 - 09:22 PM

Hi.

I ran my AVG a few days ago and it found a trojan in the System Volume folder. After it removed it, I turned off system restore and then rebooted. Seemed like I was still having problems (slowness, mostly) so I ran IObit a few minutes ago (full scan). It found 4 trojans and I had it fix 2:

Trojan.Backdoor, FILE, C:\System Volume Information\_restore{534E65DA-57A5-4238-8DC6-9A56A1550AEA}\RP1\A0000268.dll, 4046490
Trojan.Backdoor, FILE, C:\System Volume Information\_restore{534E65DA-57A5-4238-8DC6-9A56A1550AEA}\RP1\A0000321.dll, 4046490

These 2 I left because I do have these programs installed and am not sure if it's correct.

Trojan.Generic, FILE, C:\Program Files\Adobe\Adobe After Effects CS4\Support Files\Plug-ins\Effects\CycoreFX\LightBurst.aex, 4105982
Trojan.Agent, FILE, C:\Program Files\Adobe\Acrobat 9.0\Acrobat\plug_ins\Preflight\PreflightLib.DEU, 4037149

I've not done anything else at this point. I wonder if someone could tell me if I should do anything more to be sure? I have:

WINXP SP3, 32 BIT
AVG FREE
SYGATE

Thanks.

*Edit: Moved topic from XP to the more appropriate forum. ~ Queen-Evie*

Edited by Queen-Evie, 27 February 2012 - 10:31 PM.


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#2 boopme

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Posted 28 February 2012 - 12:09 AM

Hello, lets do one more scan.

Next run MBAM (MalwareBytes):

Please download Malwarebytes Anti-Malware and save it to your desktop.
Download Link 1 <<<== Use this one first.

Download Link 2MBAM may "make changes to your registry" as part of its disinfection routine. If using other security programs that detect registry changes (ie Spybot's Teatimer), they may interfere or alert you. Temporarily disable such programs or permit them to allow the changes.
  • Make sure you are connected to the Internet.
  • Double-click on mbam-setup.exe to install the application.
    For instructions with screenshots, please refer to the How to use Malwarebytes' Anti-Malware Guide.
  • 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 definition 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. Be sure to post the complete log to include the top portion which shows MBAM's database version and your operating system.
  • Exit MBAM when done.
Note: If MBAM encounters a file that is difficult to remove, you will be asked to reboot your computer so MBAM can proceed with the disinfection process. If asked to restart the computer, please do so immediately. Failure to reboot normally (not into safe mode) will prevent MBAM from removing all the malware.

Troubleshoot Malwarebytes' Anti-Malware


If there are no more problems or signs of infection, you should Create a New Restore Point to prevent possible reinfection from an old one. Some of the malware you picked up could have been saved in System Restore. Since this is a protected directory your tools cannot access to delete these files, they sometimes can reinfect your system if you accidentally use an old restore point. Setting a new restore point AFTER cleaning your system will help prevent this and enable your computer to "roll-back" to a clean working state.

The easiest and safest way to do this is:
  • Go to Start > Programs > Accessories > System Tools and click "System Restore".
  • Choose the radio button marked "Create a Restore Point" on the first screen then click "Next". Give the R.P. a name, then click "Create". The new point will be stamped with the current date and time. Keep a log of this so you can find it easily should you need to use System Restore.
  • Then use Disk Cleanup to remove all but the most recently created Restore Point.
  • Go to Start > Run and type: Cleanmgr
  • Click "Ok". Disk Cleanup will scan your files for several minutes, then open.
  • Click the "More Options" tab, then click the "Clean up" button under System Restore.
  • Click Ok. You will be prompted with "Are you sure you want to delete all but the most recent restore point?"
  • Click Yes, then click Ok.
  • Click Yes again when prompted with "Are you sure you want to perform these actions?"
  • Disk Cleanup will remove the files and close automatically.
Vista Users can refer to these links: Create a New Restore Point and Disk Cleanup.
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#3 cornybread

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Posted 28 February 2012 - 12:28 AM

Okay. Running now. FYI: I already had MBAM installed...

Here are the results. I am completing the 'Create New Restore Point' part of your instructions now.

Malwarebytes Anti-Malware 1.60.1.1000
www.malwarebytes.org

Database version: v2012.02.28.01

Windows XP Service Pack 3 x86 NTFS
Internet Explorer 8.0.6001.18702
ItsNunYerBiz :: NUNYERBIZ [administrator]

2/28/2012 12:25:16 AM
mbam-log-2012-02-28 (00-25-16).txt

Scan type: Quick scan
Scan options enabled: Memory | Startup | Registry | File System | Heuristics/Extra | Heuristics/Shuriken | PUP | PUM | P2P
Scan options disabled:
Objects scanned: 203657
Time elapsed: 6 minute(s), 52 second(s)

Memory Processes Detected: 0
(No malicious items detected)

Memory Modules Detected: 0
(No malicious items detected)

Registry Keys Detected: 0
(No malicious items detected)

Registry Values Detected: 0
(No malicious items detected)

Registry Data Items Detected: 0
(No malicious items detected)

Folders Detected: 0
(No malicious items detected)

Files Detected: 0
(No malicious items detected)

(end)

Edited by cornybread, 28 February 2012 - 12:34 AM.


#4 quietman7

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Posted 28 February 2012 - 08:38 AM

These 2 I left because I do have these programs installed and am not sure if it's correct.

Trojan.Generic, FILE, C:\Program Files\Adobe\Adobe After Effects CS4\Support Files\Plug-ins\Effects\CycoreFX\LightBurst.aex, 4105982
Trojan.Agent, FILE, C:\Program Files\Adobe\Acrobat 9.0\Acrobat\plug_ins\Preflight\PreflightLib.DEU, 4037149

The detection(s) could possibly be false positives so you should get second opinion. Go to one of the following online services that analyzes suspicious files:In the "File to Scan" (Upload or Submit) box, browse to the location of the suspicious file(s) and submit (upload) it for scanning/analysis. If you get a message saying "File has already been analyzed", click Reanalyze or Scan again.
-- Post back with the results of the file analysis so boopme can review them.
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#5 cornybread

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Posted 28 February 2012 - 12:35 PM

Hi. I used VT and rescanned them both and both were clean - nothing flagged.

I did turn off my computer last night after I created the restore point and posted the MBAM results. Should I do anything else now?

Thanks.

#6 boopme

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Posted 28 February 2012 - 05:02 PM

If things are running well now you are good to go.
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