Rule History

SID: 903201526 • Source: abuse.ch/sslbl-blacklist

Versions (3)

Version DetailsCurrent

Rev: 1 • Jun 25, 2025, 11:40 AM

Message:

SSLBL: Malicious SSL certificate detected (Quakbot C&C)

Rule:

alert tls $EXTERNAL_NET any -> $HOME_NET any (msg:"SSLBL: Malicious SSL certificate detected (Quakbot C&C)"; tls_cert_fingerprint; content:"a1:fb:81:ab:f5:e0:45:3e:6f:b1:29:b5:e2:58:3b:17:1b:fd:e4:16"; reference:url, sslbl.abuse.ch/ssl-certificates/sha1/a1fb81abf5e0453e6fb129b5e2583b171bfde416/; sid:903201526; rev:1;)

Created:

Jun 25, 2025, 11:40 AM

Updated:

Jun 25, 2025, 11:40 AM

DB Created:

Jul 17, 2025, 2:34 PM

DB Updated:

Jul 17, 2025, 2:34 PM

Filename:

sslblacklist_tls_cert.rules