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

SID: 903209406Rev: 10 views
Sourcesslbl/ssl-fp-blacklist
CreatedApril 1, 2026
UpdatedApril 1, 2026
alert tls $EXTERNAL_NET any -> $HOME_NET any (msg:"SSLBL: Malicious SSL certificate detected (CobaltStrike C&C)"; tls_cert_fingerprint; content:"b5:26:d2:c8:17:b0:eb:0c:76:a8:9c:a0:b8:c0:af:47:ab:65:a9:3f"; reference:url, sslbl.abuse.ch/ssl-certificates/sha1/b526d2c817b0eb0c76a89ca0b8c0af47ab65a93f/; sid:903209406; rev:1;)

References

urlsslbl.abuse.ch/ssl-certificates/sha1/b526d2c817b0eb0c76a89ca0b8c0af47ab65a93f/

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