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Virus-struck W2k Machine, Odd Behavior


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#1 Nicholas Basso

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Posted 09 February 2007 - 09:26 PM

Okay, in a nutshell I'm pretty technically savvy but this one's escaping me. I have a W2k machine I set up, nice deal, been running for a while but I got a virus through some "seedy" download or other. It was my own fault for not scanning said download before doing so, but anyhow. I managed to get ahold of my trusty UBCD and UBCD4WIN, determined the issues and other things using dates modified and other tactics, and started nuking files.
I determined the machine had acquired a rather nasty variety of Bagle, and began assaulting it with much force.
At first, the symptoms were that the machine would almost instantly begin massive amounts of packet in/out, loading pages. Research into the variety of Bagle I had, I determined that to be part of its payload, but lacking any remaining force it just sucked my bandwidth. So I eliminated those parts, and that symptom disappeared.

Then arose a new, lovely symptom. About 20-30 minutes into uptime, all requests and connections, even active ones, to port 80 (http or web) addresses, will just fail. Could not establish connection to server, etc.etc.

IM connections all succeed, email, DNS lookups, pings, all good. HTTP access, bad after 20-30 minutes or less.

I haven't yet rebuilt the TCP/IP stack, but I'm not sure how to do that on 2k, I do recall how to on 98 but not 2k.

Would that be recommended, or what should I try? I'm also considering a W2k repair installation.

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#2 Nicholas Basso

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Posted 11 February 2007 - 02:17 PM

New Update, I tried rebuilding (install different protocl, uninstall TCP/IP, restart, reinstall tcp/ip, restart) the TCP/IP stack, no good. Still same thing.

#3 gavinseabrook

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Posted 13 February 2007 - 06:40 PM

I would say jump into safemode with networking, get the yahoo toolbar with antispy and see if you can do a scan from there to remove it. I had a client with a Bagle type virus and so far it has been months and no problems. Just safe mode, download, run full scan, and remove everything. BTW, when you do the scan you need to be in windows normal mode, but disable your network adapter when you are scanning.

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#4 fozzie

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Posted 13 February 2007 - 06:58 PM

please read and follow all instructions in the pinned topic titled "Preparation Guide For Use Before Posting A Hijackthis Log". You may have performed some of these steps already. About half way down are instructions for downloading HijackThis and creating a log.

When you have done that, post a log in the HijackThis Logs and Analysis Forum, NOT here, for assistance by the HJT Team Experts. A member of the Team will walk you through, step by step, on how to clean your computer. If you post your log back in this thread, the response from the HJT Team will be delayed because your post will have to be moved. This means it will fall in line behind any others posted that same day.

Start a new topic, give it a relevant title and post your log along with a brief description of your problem, a summary of any anti-malware tools you have used and a summary of any steps that you have performed on your own. Please include the top portion of the HijackThis log that lists version information. An expert will analyze your log and reply with instructions advising you what to fix.

Please be patient. It may take a while to get a response because the HJT Team members are very busy working logs posted before yours. They are volunteers who will help you out as soon as possible. Once you have made your post and are waiting, please DO NOT make another reply until it has been responded to by a member of the HJT Team. Generally the staff checks the forum for postings that have 0 replies as this makes it easier for them to identify those who have not been helped. If you post another response there will be 1 reply. A team member, looking for a new log to work may assume another HJT Team member is already assisting you and not open the thread to respond.

If after 5 days you still have received no response, then post a link to your HJT log here.

After posting a log you should NOT make further changes to your computer (install/uninstall programs, use special fix tools, delete files, edit the registry, etc.) unless advised by a HJT Team member. Doing so can result in system changes which may not show it the log you already posted. Further, any modifications you make may cause confusion for the member assisting you and could complicate the malware removal process which would extend the time it takes to clean your computer.

#5 Nicholas Basso

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Posted 20 February 2007 - 12:42 AM

I would say jump into safemode with networking, get the yahoo toolbar with antispy and see if you can do a scan from there to remove it. I had a client with a Bagle type virus and so far it has been months and no problems. Just safe mode, download, run full scan, and remove everything. BTW, when you do the scan you need to be in windows normal mode, but disable your network adapter when you are scanning.


Thanks for the response.
Unfortunately, when I boot W2K in safe boot it goes insane over a USB card reader that is connected via USB direct to the mobo, and when rebooting sometimes I lose my usb connections entirely and must boot from a PS/2 kb and mouse to get everything back. What fun.

I think though I will give it one more try after disconnecting that usb device, and if I can't do it there call the 2k install a lost cause and install 2k to a secondary drive for data backup purposes, until I'm ready to wipe and start over.

#6 Nicholas Basso

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Posted 20 February 2007 - 12:43 AM

Some very useful instructions for getting HJT working


That's something I'm going to have to try, I have made some modifications since but I think I'll follow those steps ... once I can get them printed.

Thank you!




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