How to Bypass Web-Proxy Filtering

This blog post documents a technique called domain-categorization takeover to bypass web-proxy and egress filtering: re-register a recently expired domain that still has a benign category, point its A record to a C2/testing server, obtain a trusted SSL certificate, host payloads, and run listeners (examples use msfvenom and meterpreter). It’s presented as a step-by-step guide for testing/assessment and references related C2 methods (ICMP/DNS tunneling, email-based channels, and domain-fronting).