Messed up Computer

aravind · Oct 16, 2010

:cry Hi, I am on a vacation at my buddy's house. Kids and unsafe browsing habits have messed up his computer (Windows XP Pro).
I ran a boot time scan with Avast which showed that the computer was infected by WIN32:VIRTOB. After removing the infection,I found to my horror many system file and many crucial services missing and settings gone awry.Now I have a very unstable PC.
I thought of doing a repair install and my then it won't boot from optic drive.Don't know if it is cirrupt BIOS or boot sector Virus.
I ran 'Read and Run Me First' and here are my Logs.
Kindly help.

aravind · Oct 16, 2010

And now Avast is causing problems with its Web Shield not allowing web pages to load. The system also has lot of crap like MS Power toys which has no Uninstaller to remove it.
Here is the MG log.

chaslang · Oct 16, 2010

Virtob aka Virut is very damaging and quite frequently cannot be reliably and completely removed without causing extreme damage to the OS because it can infect every single executable type file on the PC. What we normally tell people with this infection is the below

There is no known reliable fix for this. In addition there are many many other infected files. We could spend a lot of time trying to remove this infection, but odds are that it will not work because the nature of the infection has so many executable system files infected that as soon as we fix one file, other files that are infected will almost immediately or upon the next reboot, just reinfect the files. In addition, your PC would still basically be unreliable/untrustworthy even if we manage to fix the infected files that we can see since there could be many more that we are not seeing.

The safest thing for you to do is backup your personal data immediately since your PC could possibly become unbootable at any point in time. Do not back up any executable files. This includes programs that you have downloaded since any of them could be infected. Anything you may have already backed up that is an executable type file (things you downloaded to install programs....etc) are most likely infected and will cause you to be reinfected if you reuse these files.

Once you backup, you need to format partitions and reinstall Windows and all other software especially your protection software. Then install all updates for all software. DO NOT reinstall from any executable file backups you made while this PC was infected or you will just be reinstalling the
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Messed up Computer

aravind Private E-2

Attached Files:

mbam.txt

sas.txt

ComboFix.txt

rrlog.txt

aravind Private E-2

Attached Files:

MGlogs.zip

chaslang MajorGeeks Admin - Master Malware Expert Staff Member