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

SID: 903203535Rev: 140 views
History
Sourcesslbl/ssl-fp-blacklist
CreatedJune 25, 2025
UpdatedJune 25, 2025
alert tls $EXTERNAL_NET any -> $HOME_NET any (msg:"SSLBL: Malicious SSL certificate detected (Ostap C&C)"; tls_cert_fingerprint; content:"21:45:df:a3:9e:0e:50:70:2a:ee:09:ae:a1:b6:8a:9a:1e:75:55:c3"; reference:url, sslbl.abuse.ch/ssl-certificates/sha1/2145dfa39e0e50702aee09aea1b68a9a1e7555c3/; sid:903203535; rev:1;)

References

urlsslbl.abuse.ch/ssl-certificates/sha1/2145dfa39e0e50702aee09aea1b68a9a1e7555c3/

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