[BUG] weird process-popups on desktop

Hello All

I just signed up here as we experienced a weird problem at a coworkers Vista-machine. please find the screenshot below (parts blurred for privacy)



It seems that this happens at random times and is not triggered by any special event. This seems to be a rather special behaviour, so I'm looking for responses of people who had seen that before and might have ideas or know how to fix it.

Run an full anti virus scan
Donwload and make a full scan with malwarebytes, looks like it might be a malware problem.