I was very surprised to see this here
This was the headline as reported by newsbytes.com on Apr. 30th
New Stealth Attack Found Against Personal Firewalls
Backstealth, a demonstration program that bypasses the outbound data filters in firewalls from Symantec, McAfee, and other firms, was posted last week to Packetstorm, a popular security tools site.
The utility is able to defeat outbound blocking by Kerio Personal Firewall, McAfee Personal Firewall, Norton Internet Security 2002, Sygate Personal Firewall Pro, and Tiny Personal Firewall, according to Iorio.