I am working with a Dell desktop computer with XP Pro SP3 installed. End user let antivirus subscription expire and is now experienciencing all sorts of issues.
I uninstalled Win Maximizer and FileCure from her computer.
There are two exe on her desktop null0.xxxxxxxxxxxxxxxx where x's are random numbers.
I installed malwarebytes. 15 seconds into a full scan, malwarebytes program exits. Nothing malwarebytes related listed in taskmanger. If you try to run malwarebytes again, receive "C:\Program Files\Malwarebytes' Anti-Malware\mbam.exe Windows cannot access the specified device, path, or file. You may not have the appropriate permissions to access the item." Further investigation reveals that folders are marked read only. Changing read only attribute is not persistent. Attribute changes back to read only.
Unable to run online virus scans. They begin and stop as well.
Unable to install anything from a CD/DVD receive access denied error message.
How should I proceed?