Compression

Ghost-C2 has evolved from a proof-of-concept into a battle-hardened implant. Phantom Loader injects PIC shellcode into live processes, VESQER compression halves the packet count, and layered evasion defeats Suricata v8.0.3. All in pure x64 Assembly.

I accidentally reinvented a 1970s telecom algorithm at 5 AM while trying to shrink C2 payloads. Here’s how it works, why it’s effective, and a full walkthrough of the x64 Assembly implementation.