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

SID: 903208155Rev: 14 views
Sourceabuse.ch/sslbl-blacklist
CreatedSeptember 27, 2025
UpdatedSeptember 27, 2025
alert tls $EXTERNAL_NET any -> $HOME_NET any (msg:"SSLBL: Malicious SSL certificate detected (CobaltStrike C&C)"; tls_cert_fingerprint; content:"51:cd:84:b9:3e:fd:a2:75:23:93:80:e3:fb:8f:db:87:f0:f2:50:8a"; reference:url, sslbl.abuse.ch/ssl-certificates/sha1/51cd84b93efda275239380e3fb8fdb87f0f2508a/; sid:903208155; rev:1;)

References

urlsslbl.abuse.ch/ssl-certificates/sha1/51cd84b93efda275239380e3fb8fdb87f0f2508a/

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