Rule History

SID: 903204986 • Source: abuse.ch/sslbl-blacklist

Versions (3)

Version DetailsCurrent

Rev: 1 • Jun 25, 2025, 11:40 AM

Message:

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

Rule:

alert tls $EXTERNAL_NET any -> $HOME_NET any (msg:"SSLBL: Malicious SSL certificate detected (CobaltStrike C&C)"; tls_cert_fingerprint; content:"a0:f5:63:f0:08:34:97:a7:2c:f4:92:b7:d8:e1:c9:cf:9c:31:b2:52"; reference:url, sslbl.abuse.ch/ssl-certificates/sha1/a0f563f0083497a72cf492b7d8e1c9cf9c31b252/; sid:903204986; 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