Rule History

SID: 903205987 • Source: abuse.ch/sslbl-blacklist

Versions (3)

Version DetailsCurrent

Rev: 1 • Jun 25, 2025, 11:40 AM

Message:

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

Rule:

alert tls $EXTERNAL_NET any -> $HOME_NET any (msg:"SSLBL: Malicious SSL certificate detected (QuasarRAT C&C)"; tls_cert_fingerprint; content:"81:a0:c1:4d:4c:70:5b:3c:67:8e:57:3c:84:9d:e7:f6:a3:67:1a:8b"; reference:url, sslbl.abuse.ch/ssl-certificates/sha1/81a0c14d4c705b3c678e573c849de7f6a3671a8b/; sid:903205987; 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