Rule History

SID: 903201322 • Source: sslbl/ssl-fp-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:"a5:74:e4:f9:9b:fc:08:aa:3b:d3:2f:0e:b7:71:43:95:2a:77:0a:b9"; reference:url, sslbl.abuse.ch/ssl-certificates/sha1/a574e4f99bfc08aa3bd32f0eb77143952a770ab9/; sid:903201322; 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