Suspected bufferoverflow attack +deep lurking virus?

davidneedshelp · Jan 11, 2010

I suffered a suspected buffer overflow attack yesterday and since then I have had numerous rogue IP addresses connecting to my pc and transmitting/receiving data. Because of this I am sending this message in an internet cafe as I cannot use my pc online. I have tried the following with no success:

1. Virus scans: VIPRE, Antimalware, Superantispyware, AVAST
2. Windows vista system restore to a restore point from last week (restores successfully but IP's still connecting)
3. Acronis tru image backup - formats C drive which has operating system and main files on and replaces with a backup which I take once a month (Problem still persists) Other drive is D drive which just has pictures and music on.

If I open firefox and leave it just on google within 15 minutes I have 20 different IP addresses connecting to my computer.

Here are some screenshots of my comodo firewall to see what it's like

http://img510.imageshack.us/img510/3325/hack4l.jpg

http://img137.imageshack.us/img137/3527/hacker3.jpg

http://img515.imageshack.us/img515/8818/iphackers.jpg

(Boinc is normal btw, but the lsass.exe never used to be there and neither did the MULTIPLE svchosts. the firefox thing never used to happen either.)

I contacted my ISP and they tell me I must have some kind of virus on the computer that VIPRE and the other antiviruses aren't picking up.

I am desperate for help and have posted this on a few forums, hopefully someone here has some ideas as I'm baffled what else to try.

Please help..

TimW · Jan 12, 2010

Welcome to Major Geeks!

Please read ALL of this message including the notes before doing anything.

Pleases follow the instructions in the below link:

READ & RUN ME FIRST. Malware Removal Guide

and attach the requested logs when you finish these instructions.

**** If something does not run, write down the info to explain to us later but keep on going. ****

Do not assume that because one step does not work that they all will not. MGtools will frequently run even when all other tools will not.

After completing the READ & RUN ME and attaching your logs, make sure that you tell us what problems still remain ( if any still do )!

Helpful Notes:

If you run into problems trying to run the READ & RUN ME or any of the scans in normal boot mode, you can run the steps in safe boot mode but make sure you tell us what you did later when you post logs. See the below if you do not know how to boot in safe mode:

Starting your computer in Safe modea

If you have problems downloading on the problem PC, download the tools and the manual updates for SUPERAntiSpyware and Malwarebytes ( links are given in the READ & RUN ME) onto another PC and then burn to a CD. Then copy them to the problem PC. You will have to skip getting updates if (and only if) your internet connection does not work. Yes you could use a flash drive too but flash drives are writeable and infections can spread to them.

If you cannot seem to login to an infected user account, try using a different user account (if you have one) in either normal or safe boot mode and running only SUPERAntiSpyware and Malwarebytes while logged into this other user account. Then reboot and see if you can log into the problem user account. If you can then run SUPERAntiSpyware, Malwarebytes, ComboFix and MGtools on the infected account as requested in the instructions.

To avoid additional delay in getting a response, it is strongly advised that after completing the READ & RUN ME you also read this sticky:

Don't Bump! It Only Hurts You!!!

Any additional post is a bump which will add more delay. Once you attach the logs, your thread will be in the work queue and as stated our system works the oldest threads FIRST.

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Suspected bufferoverflow attack +deep lurking virus?

davidneedshelp Private E-2

TimW MajorGeeks Administrator - Jedi Malware Expert Staff Member