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

SID: 903204246Rev: 1EnabledDerived7 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:"a1:01:71:87:c8:52:e8:7b:30:08:68:03:4e:8a:ea:b1:a2:1f:73:f3"; reference:url, sslbl.abuse.ch/ssl-certificates/sha1/a1017187c852e87b300868034e8aeab1a21f73f3/; sid:903204246; rev:1;)

References

urlsslbl.abuse.ch/ssl-certificates/sha1/a1017187c852e87b300868034e8aeab1a21f73f3/

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