I am worried that my mom's computer may be compromised.
Windows Security repot that multiple anti-virus apps are running, one of which is up-to-date. But I uninstalled them all
Is the system compromised by someting pretending to be an antivirus application?
Should I worry?
How can I tell what anti-virus apps are running?Background
She complained comp was slow, and that she got a virus warning (malicious pdf)
1) I updated AVira (the anti-virus app), ran a scan, and found a malicious pdf file which I removed.
2) System was still slow, so I downloaded Ad-Aware and tried to run it - but system was so slow I could not work on it.
3) I noticed there was constant harddrive activity even when not running any programs (including scans) - I thought perhaps someting had failed in the anti-virus / malware apps, so I uninstalled them, intending to reboot and reinstall.
4) On reboot hardrive activity and system response seemed normal / better. I noticed the little windows warning shield icon (lower right) was not red as I expected (since I removed anti-virus). When I checked Windows Secirity it reported multiple anti-virus runnig and at least one being up-to-date.
I am worried something is hiding as an antivirus app…and confused.
I did a complete windows update (IE8, XP service pack 3, multiple security updates, hoping this would correct problem – no dice. And why was Widows so out of date? Auto update is on?
Any help / suggestions would be appreciated.