I have been working on this project for well over a month and have run over 150,000 scans of known threat URLs. The site began from an investigation into malware distribution on a corporation's lapsed domain. I have a few articles I'll be posting in the coming weeks on tuxxin.com with my findings, but enough of that for now.
During my investigation, I noticed the existence of the TDS (Traffic Direction System) and kept digging further to find out as much information as I could. Doing this manually was a big hassle as every URL scanner out there uses datacenter-based egress IPs, which were being blocked, while the sites were still serving malware to my home connection. I reported my findings within hours to the FBI IC3 on Monday, June 15th; three days later, a TDS PSA was sent out by IC3.
qsa.sh
In June, the FBI’s IC3 released a PSA warning that malicious Traffic Distribution Systems (TDS) are bypassing traditional defenses by aggressively filtering visitors based on IP and device data to hide their final payloads.
If your threat intel relies on datacenter-bound scans alone, you're only seeing what the threat actor wants you to see. Modern phishing and TDS kits fingerprint ASNs to serve a clean face to scanners, revealing the real payload only to residential and mobile users, or to a specifically targeted ASN (for phishing, malware, or other attacks).
To catch them, you have to blend in.
That's why I built whack.sh. Drop in a single URL, and it triggers a simultaneous fan-out across datacenter, residential, mobile, VPN, and BYO egress options. Full request waterfall and redirect/TDS chain is captured for each path—then diffs the results to expose the cloaking instantly to detect the hidden payloads (malware, phishing, viruses, scareware, etc.).
See the full architecture: https://whack.sh/how-it-works