3 replies to this topic

[budspencer]

Hi,

I have been a happy user of malwarebytes for a while and i am very satisfied with the program,

However now i got a really nasty case of trojan that keeps coming back.

Files Infected:
E:\WINDOWS\Temp\msb.dll (Worm.Autorun) -> Delete on reboot.
E:\WINDOWS\system32\autochk.dll (Worm.Autorun) -> Quarantined and deleted successfully.
E:\Documents and Settings\-\protect.dll (Worm.Autorun) -> Quarantined and deleted successfully.
E:\Documents and Settings\-\Start Menu\Programs\Startup\ChkDisk.dll (Worm.Autorun) -> Quarantined and deleted successfully.
E:\Documents and Settings\-\Start Menu\Programs\Startup\ChkDisk.lnk (Trojan.FakeAlert) -> Quarantined and deleted successfully.
E:\WINDOWS\Temp\nsrbgxod.bak (Trojan.Agent) -> Delete on reboot.

all of those above are detected by Malware bytes and are deleted promptly by the program but they just keep coming back, so i guess malwarebytes is missing something related to those pests.

I have tried hijack this with malware bytes, even my antivirus picks them up but it seems that no software so far has been able to clean this crap. I also did regedit and deleted all the keys associated with this. But it seems that this software is stuck in memory and keeps coming back after x amount of minutes after deletion.

Can somebody help me out with this or not?

Thanks..

[AdvancedSetup]

Hello and Welcome to Malwarebytes.org

If you're having Malware related issues with your computer that you're unable to resolve.

• Please read and follow the instructions provided here: I'm infected - What do I do now?
  
• If needed please post your logs in a NEW topic here: Malware Removal - HijackThis Logs
  
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• Please do not post any logs in the General forum. We do not work on any logs posted in the General forum.
  
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• Using these other tools often makes the cleanup task more difficult and time consuming.
  
• If you have already submitted for assistance at one of the other support sites on the Internet then you should not post a new log here, you should stay working with the Helper from that site until the issue is resolved.
  
• Do not assume you're clean because you don't see something in the logs. Please wait until the person assisting you provides feedback.
  
• There are often many others that require asistance as well, so please be patient. If no one has responded within 48 hours then please go ahead and post a request for review

• NOTE: If for some reason you're unable to run some or any of the tools in the first link, then skip that step and move on to the next one. If you can't even run HijackThis, then just proceed and post a NEW topic as shown in the second link describing your issues and someone will assist you as soon as they can.

[danday3953]

budspencer, on May 11 2009, 05:40 AM, said:

Hi,

I have been a happy user of malwarebytes for a while and i am very satisfied with the program,

However now i got a really nasty case of trojan that keeps coming back.

Files Infected:
E:\WINDOWS\Temp\msb.dll (Worm.Autorun) -> Delete on reboot.
E:\WINDOWS\system32\autochk.dll (Worm.Autorun) -> Quarantined and deleted successfully.
E:\Documents and Settings\-\protect.dll (Worm.Autorun) -> Quarantined and deleted successfully.
E:\Documents and Settings\-\Start Menu\Programs\Startup\ChkDisk.dll (Worm.Autorun) -> Quarantined and deleted successfully.
E:\Documents and Settings\-\Start Menu\Programs\Startup\ChkDisk.lnk (Trojan.FakeAlert) -> Quarantined and deleted successfully.
E:\WINDOWS\Temp\nsrbgxod.bak (Trojan.Agent) -> Delete on reboot.

all of those above are detected by Malware bytes and are deleted promptly by the program but they just keep coming back, so i guess malwarebytes is missing something related to those pests.

I have tried hijack this with malware bytes, even my antivirus picks them up but it seems that no software so far has been able to clean this crap. I also did regedit and deleted all the keys associated with this. But it seems that this software is stuck in memory and keeps coming back after x amount of minutes after deletion.

Can somebody help me out with this or not?

Thanks..

Try the recomendations on the TechNet SpotLight Advanced Malware Cleaning, most noteably the section on advanced interpretation using Process Explorer. Also try running it frem the command line before login (PsExec \\[infectedComputer\cmd.exe then type the rkr.exe, MBAM.exe or other supported software(if commandline is supported) and view the entire webcast for the "reverse-engineering/Debugging" options you may have. For further decompiling/debugging, try Ollydbg.exe you can find a link to it from insecure.org or darkside.net (Ithink it's there). A helpful webcast for looking at code can be found at: [url="http://www.offensive-security.com/cons/shmoo2008/muts_at_shmoo.html"].

Also try scanning from another box, connecting the drive as a slave, and booting from your known goo computers OS.

Good luck!

[danday3953]

danday3953, on May 12 2009, 01:16 PM, said:

Try the recomendations on the TechNet SpotLight Advanced Malware Cleaning, most noteably the section on advanced interpretation using Process Explorer. Also try running it frem the command line before login (PsExec \\[infectedComputer\cmd.exe then type the rkr.exe, MBAM.exe or other supported software(if commandline is supported) and view the entire webcast for the "reverse-engineering/Debugging" options you may have. For further decompiling/debugging, try Ollydbg.exe you can find a link to it from insecure.org or darkside.net (Ithink it's there). A helpful webcast for looking at code can be found at: [url="http://www.offensive-security.com/cons/shmoo2008/muts_at_shmoo.html"].

Also try scanning from another box, connecting the drive as a slave, and booting from your known goo computers OS.

Good luck!

offensive-security.com = creators of BackTrack (as if you didn't know)

Good luck again!