Adding Egress Brute Force to PowerShell Payloads

**Executive summary:** This post demonstrates a simple offensive technique to bypass egress filtering by embedding a PowerShell loop that probes outbound ports until a reverse-shell connects, combined with an iptables one-liner on the listener to forward all incoming ports to a single handler (e.g., Metasploit, netcat, Powercat). The author provides PoC code, usage notes, and testing caveats (iptables REJECT/DROP and potential enterprise firewall differences).