Trustwave’s SpiderLabs performed the analysis of malicious software (malware) found installed on compromised ATMs (Automated Teller Machines) in the Eastern European region. This malware captures magnetic stripe data and PIN codes from the private memory space of transaction-processing applications installed on a compromised ATM. The compromised ATMs discussed in this briefing ran Microsoft’s Windows XP operating system.
I took pictures of an ATM last year that was running what I thought at the time was Windows 95 however I have since learnt that it was XP with the 95 theme. I was very surprised that they were not *nix based.