Just a guess, but I'd bet the behavior you're seeing is the same method with which you became infected, that is, via TCP 139 and 445. Sounds like a propogation worm.
It will morph on reboot, so use a prog like regshot or regmon to diff the registry. Check HKLM software Microsoft windowsnt currentversion run for any new processes set to run at boot. Use a forensic solution to get the malware back, copy it to a VM box using NAT, set the VM's gateway to your local host and sniff the traffic for signs of replication mechanism. After you get the malware off the box, clean registry, and patch the box. Best, Jim Butterworth Guidance Software Mgr. Prof Svcs Jim Butterworth, EnCE, GCIA Manager, Professional Services, Southwest *** Sent while Mobile *** -----Original Message----- From: Patrick Beam <[EMAIL PROTECTED]> To: [email protected] <[email protected]> Sent: Mon Jun 05 12:27:32 2006 Subject: Compromised Windows Server Came in this morning to find a windows 2003 server I manage scanning the Internet for machines listening on tcp 139 and 445. While looking at the machine I noticed the following processes running. Mwvsta.exe found in c:\windows\system32 rundll16.exe c:\windows\system23 Ponoas.exe c:\windows\system32 I believe that the ponoas.exe is some sort of rootkit although searching on google for this file name returns nothing. Also searching mwvsta.exereturns nothing. At this point I have removed these files from the system and registry but am weary that the server will get hit again. Has anyone had an experience with the following file or have any idea what rookkit of virus they are associated with? Thanks, Patrick ------------------------------------------------------------------------------ This List Sponsored by: Black Hat Attend the Black Hat Briefings & Training USA, July 29. August 3 in Las Vegas. World renowned security experts reveal tomorrow.s threats today. Free of vendor pitches, the Briefings are designed to be pragmatic regardless of your security environment. Featuring 36 hands-on training courses and 10 conference tracks, networking opportunities with over 2,500 delegates from 40+ nations. http://www.blackhat.com ------------------------------------------------------------------------------
