No. I use a dedicated untangled box for a firewall to keep things out, and I use an IDS (security onion) that does packet analysis to check for any naughty egre

No. I use a dedicated untangled box for a firewall to keep things out, and I use an IDS (security onion) that does packet analysis to check for any naughty egressing (malware, C&C, etc). Best antivirus around, is common sense.