Ad aware and any kind of antivirus can find spy/virus where they don't exist, they scan for patterns and when they find something that matches they treat as an infection, but in some cases this is not true. I have a software done by me, a very old DOS one, that if you run any antivirus you will find the virus xxxx (I don't remember now which). Always delete manualy the suspected files!

Stupidity also evolves!