OK everyone, it'd seem that he doesn't just have a script problem... Yahoo? As in the Instant Messenger? Everyone knows that most IMs online are riddled with security holes and flaws, so maybe someone exploited it and caused you to download a file without knowing (Probably a buffer overflow) so download your latest virus pattern and find a decent trojan scanner. As for a linux virus scanner that detects windows virii, why would you need it? A windows virus will not operate on a xnix system or vice versa. If you have WinXP, type "netstat -o" at dos and check your ports and processes.