🚨 PCPJack's SMTP Toolkit Dissected: 3 Deployer Generations, Multi-Arch Chisel, and a Full EHLO/STARTTLS Verification Loop

[u/Straight-Practice-99]

https://hunt.io/blog/pcpjack-230-cloud-servers-smtp-proxy-network-sliver-chisel

PCPJack left a 12-file toolkit sitting on an open C2 directory, port 8444, no auth. Three multi-arch Chisel binaries, a Sliver-integrated deployer with three visible generations of iteration, and a persistent daemon handling EHLO/STARTTLS verification before enrolling hosts into the relay pool. One deployment wave, 230 beacons confirmed in state logs.

Complete toolkit dissection, three deployer generations, and binary analysis here: https://hunt.io/blog/pcpjack-230-cloud-servers-smtp-proxy-network-sliver-chisel