Egress Buster Reverse Shell and Bypassing AV

Back in February Dave Kennedy released a tool called Egress Buster that would look for outbound ports and let you know what egress rules were in place behind a firewall. The way this initially worked was by sending TCP packets on each and every port originating from inside the firewall to an externally facing server that was listening on those ports. Today we would like to announce the release of the Egress Buster Reverse Shell which will scan for open ports on the internal network and once an open port has been established, spawn a reverse shell. Benchmark testing showed about a 1,000 ports were tested in under five seconds.

 https://www.trustedsec.com/july-2012/egress-buster-reverse-bypassav/