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| Subject: | RE: stealth virus on explorer.exe |
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| Date: | Fri, 12 Oct 2007 18:29:41 -0400 |
This "virus" has much of the same behavior as the Nail.exe application that I've found on multiple machines. Some suggestions I might make would be (depending on your skill level): 1) If you are pretty comfortable in the registry, check out HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon and review the value of string value "Shell". I've seen applications tack themselves into this string and be executed in with Explorer. It is normally not shown in the task manager either. 2) If you aren't comfortable in the registry, reboot the machine into Safe Mode and see if it still occurs. Safe Mode is used because no user startup tasks are evaluated and if it is still running in Safe Mode, there's a pretty safe bet its either loading as a BHO, driver, or as part of the shell. If either of these two things proves to be the case, then to rid yourself of it, you will have to take some interesting steps. Evaluation what I've provided and let us know. Thanks! John Hall (securityfocus@neovolo.com) Technological Solutions Team Neovolo - New Life to Business SolutionsT http://www.neovolo.com -- No virus found in this outgoing message. Checked by AVG Free Edition. Version: 7.5.488 / Virus Database: 269.14.8/1064 - Release Date: 10/11/2007 3:09 PM --------------------------------------------------------------------------- This list is sponsored by: Black Hat Attend Black Hat USA, July 28-August 2 in Las Vegas, the world's premier technical event for ICT security experts. Featuring 30 hands-on training courses and 90 Briefings presentations with lots of new content and new tools. Network with 4,000 delegates from 70 nations. Visit product displays by 30 top sponsors in a relaxed setting. http://www.blackhat.com ---------------------------------------------------------------------------
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