Today when I opened My Documents AVG popped up to tell me aaw6181.exe in the root folder contained a Trojan horse downloader agent.

This seems a bit weird as the EXE has been in there for a while, but also it's the installer for Ad-Aware, which is presumably meant to block these things.

I don't think I ever got round to actually installing it anyway, but it seems a bit peculiar.

Anyone got any ideas?