Rule History

SID: 903205537 • Source: sslbl/ssl-fp-blacklist

Versions (3)

Version DetailsCurrent

Rev: 1 • Jun 25, 2025, 11:40 AM

Message:

SSLBL: Malicious SSL certificate detected (PoshC2 C&C)

Rule:

alert tls $EXTERNAL_NET any -> $HOME_NET any (msg:"SSLBL: Malicious SSL certificate detected (PoshC2 C&C)"; tls_cert_fingerprint; content:"f5:c3:db:e6:cc:d9:37:78:20:f4:2c:75:00:ab:9b:85:b5:68:d5:5a"; reference:url, sslbl.abuse.ch/ssl-certificates/sha1/f5c3dbe6ccd9377820f42c7500ab9b85b568d55a/; sid:903205537; 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