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Invisible rootkit?


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#1 qvrty

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Posted 26 April 2011 - 07:06 PM

Several XP computers "protected" with Symantec endpoint protection. You can't tell they are infected except that they are probing other computers in the intranet to pass on the infection. On the first computer we found, we tried several malware removal programs and rootkit removal tools. Nothing was found or repaired. The only way you know something is wrong is to install Comodo firewall and observe the intrusion attempts in the firewall log. Most computers have fixed IP's so we know where it's coming from but can't fix or protect against it. The IP traffic is being spawned by system processes so they can't be killed.

I used to think I was pretty good at getting rid of viruses and malware, but this thing has me completely stumped!!!

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#2 Computerproblem101

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Posted 26 April 2011 - 08:07 PM

Do you have AVG? If so, run its full rootkit scan which will only take about 5 minutes. If not, go here: http://www.safer-networking.org/en/spybotsd/index.html - download Spybot Search&Destroy, right click on the icon and Run As Administrator. Update it, *Do NOT scan yet* - boot your PC into safe mode. Right click Spybot again and once again run as an Administrator, run the scan and remove anything found. After that, reboot your PC and run Housecall by Trend Micro here: http://housecall.trendmicro.com/

run it and again remove anything found.

Good luck

#3 qvrty

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Posted 26 April 2011 - 08:55 PM

Thanks

I will try your procedure tomorrow.

#4 Computerproblem101

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Posted 26 April 2011 - 09:13 PM

You're quite welcome, let me know how it goes.

#5 qvrty

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Posted 27 April 2011 - 09:31 PM

I ran Spybot and Housecall per your instructions. Nothing found or fixed.

#6 boopme

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Posted 27 April 2011 - 10:33 PM

Please download the TDSS Rootkit Removing Tool (TDSSKiller.exe) and save it to your Desktop. <-Important!!!
Be sure to download TDSSKiller.exe (v2.4.0.0) from Kaspersky's website and not TDSSKiller.zip which appears to be an older version 2.3.2.2 of the tool.
  • Double-click on TDSSKiller.exe to run the tool for known TDSS variants.
    Vista/Windows 7 users right-click and select Run As Administrator.
  • If TDSSKiller does not run, try renaming it.
  • To do this, right-click on TDSSKiller.exe, select Rename and give it a random name with the .com file extension (i.e. 123abc.com). If you do not see the file extension, please refer to How to change the file extension.
  • Click the Start Scan button.
  • Do not use the computer during the scan
  • If the scan completes with nothing found, click Close to exit.
  • If malicious objects are found, they will show in the Scan results - Select action for found objects and offer three options.
  • Ensure Cure (default) is selected, then click Continue > Reboot now to finish the cleaning process.
  • A log file named TDSSKiller_version_date_time_log.txt (i.e. TDSSKiller.2.4.0.0_27.07.2010_09.o7.26_log.txt) will be created and saved to the root directory (usually Local Disk C:).
  • Copy and paste the contents of that file in your next reply.

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