My computer is infected with Security Tool. When Security Tool is running, I don't have access to the desktop or the task manager. After a restart, I was able to shut it down with Task Manager before it loaded, and still have use of my desktop and the internet. However, it is still on my computer.
Task Manager shows that a.exe is running, and continues running after ending the process.
Both a.exe and b.exe are in my C:\Documents and Settings\[my username]\Local Settings\Temp folder, although b.exe does not appear to be running.
Malwarebytes does not work, even after renaming mbam-setup.exe.
DDS.scr does not work. RootRepeal does not work, and I am unable to rename it.
All three, on first attempt, ran for a few seconds and shut down. On further attempts they would not run at all.
Firefox works fine but there are occasional popups for both Firefox and Internet Explorer.
Symantec auto-protect indicated Trojan.Pidief.F infection, filename beenLatin.pdf.
What can I do now?
Thank you for your help!