Need help removing virus (Downloader.Generic8.APEH)

Jerry_03 · May 28, 2009

I'm Trying to help my brother remove a virus from his computer. He got it by downloading a program that ended up containing a trojan horse virus. He is using Windows XP Home Ed.

Symptoms of the virus includes not being able to access some AV sites. Mostly the free ones like AVG, Avast and NOD32 (i can however access the ones that arnt free like Norton and McAfee). As a result i cant update the definitions on AVG free. also theres some "pop-ups". its attempting to use IE (My brother uses Firefox) to show pop-ups but these errors are being shown instead:

http://i9.photobucket.com/albums/a94/Jerry003/trojanpopupscript.jpg

When the IE popup script errors came on screen i checked task manager and the following processes was the virus running in the background:

msb.exe and 17067.exe

by ending it in task manager the popup script errors went away but they would return every 30 minutes or so. also the 17067.exe process tookup a lot of memory usage, around 200,000 K.

I ran a AVG scan and found out the name of the virus is Trojan horse Downloader.Generic8.APEH. I typed the name of the virus in google to find some solutions to removing it and couldn't really find anything useful.

I used AVG to move it virus vault and delete it but apparently it didnt work cause its still having the symptoms like not being able to access the AV sites and the popup scripts errors.

However AVG did show the location of where the virus had been installed to and i went to that directory:

C:\Documents and Settings\Username\Local Settings\Temp

i found these files here and deleted it:

http://i9.photobucket.com/albums/a94/Jerry003/torjanhorseexefilesintemp.jpg

Im still getting the virus symptoms but when the pop-up script occurs there is no 17067.exe in the task manager, just the msb.exe. as before ending it closes the popup script error box but it shows up again every 30 mins.

if anyone knows of a solution or program that i can use to remove the virus then it would be greatly appreciated. Thanks in advance.

chaslang · May 30, 2009

Please follow the instructions in the READ & RUN ME FIRST link given futher down and attach the requested logs when you finish these instructions.

If you have problems where no tools seem to run, please try following the steps given in the below and then continue on no matter what you find. You only need to try the TDSSserv steps if having problems getting scans in the Read & Run Me First. If TDSSserv is not found, just continue on with the READ & RUN ME.

TDSSserv Non-Plug & Play Driver Disable

READ & RUN ME FIRST. Malware Removal Guide

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.

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 mode

If you have problems downloading on the problem PC, download the tools and the manual updates for SUPERAntiSpyware, Malwarebytes and Spybot ( 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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Need help removing virus (Downloader.Generic8.APEH)

Jerry_03 Private E-2

chaslang MajorGeeks Admin - Master Malware Expert Staff Member