Homeland Security Advisory
How secure are you and your network?
In case of virus or simply to audit, try these :

Avast cleaning tool	Housecall
Mcafee avert stinger	Security scan
Scans for open Trojan ports	Rav antivirus
DSL port scan	Panda Scan
Test my sheilds GRC	Free Trojan Scan
Pest patrol scan mediocre	Contact us if everything else fails
Patch Management	Shavlik