Two days ago the computer suddenly presented me with a DOS stop screen and I had to manually turn it off. It all went downhill from there..... The first major symptom was that my browser had been HIJACKED. I figured out how to go around that somewhat and downloaded MALWAREBYTES and it found 28 bad guys, but there are obviously still some clogging up the system. Some files it found wre zlob.h and ertfor???
We use McAfee Security Suite, and scan the computer daily (full scan). The security suite is always turned on, including the firewall.
The computer is still running, albeit really slow. Each application started brings up an error screen, for example:
xxxxx.exe - Bad Image (in title bar of error box)
The application or DLL globalroot\systemroot\system32\skynetiwxkhml.dll is not a valid windows image.
After you click on OK, the application opens (slowly).
When the computer reboots normal mode, I get 20 or more error messages - one for each exe file that runs, I believe (i.e., easyshare.exe, adobeupdatemanager.exe, uinstaller, exe, res.exe, etc.) After you say ok to all of the error boxes, it comes up and runs like a snail.
Today, McAfee's scan was stuck on a file NTOSKRNL-HOOK. I restarted the scan and it caught it the next time, and "removed" it. It also found ten other files and quarantined them. It claimed to have "repaired" a file named c:\windows\system32\drivers\skynet\ixopirix.sys - detection name "DNS Changer". I saw it in the quarantine files after the scan, so I deleted it myself.
I downloaded AdAware and it found 9 dangerous cookies, so they were deleted.
I downloaded a free registry repair program and scanned, but didn't make any changes - I don't know enough about registry changers or changes to feel comfortable with that move.
I do not have my windows xp cd. Bought the computer from Dell with it loaded, and I never saw a windows disk?? I have a restore point from a month ago (I belive), but have not attempted that either. That is my last choice.
PLEASE make suggestions and I will try them out!
Grandma2b