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

SID: 903203960Rev: 1EnabledDerived2 views
Filesslblacklist_tls_cert.rules
CreatedJune 25, 2025
UpdatedJune 25, 2025
alert tls $EXTERNAL_NET any -> $HOME_NET any (msg:"SSLBL: Malicious SSL certificate detected (CobaltStrike C&C)"; tls_cert_fingerprint; content:"f5:44:c9:82:9f:10:7d:c7:cd:dc:0d:18:8c:a6:b1:21:b8:e6:37:26"; reference:url, sslbl.abuse.ch/ssl-certificates/sha1/f544c9829f107dc7cddc0d188ca6b121b8e63726/; sid:903203960; rev:1;)

References

urlsslbl.abuse.ch/ssl-certificates/sha1/f544c9829f107dc7cddc0d188ca6b121b8e63726/

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