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

SID: 903208812Rev: 10 views
Sourcesslbl/ssl-fp-blacklist
CreatedFebruary 1, 2026
UpdatedFebruary 1, 2026
alert tls $EXTERNAL_NET any -> $HOME_NET any (msg:"SSLBL: Malicious SSL certificate detected (QuasarRAT C&C)"; tls_cert_fingerprint; content:"43:6f:02:b3:a6:34:06:70:7f:64:67:d4:88:0a:69:1a:2a:3f:53:ea"; reference:url, sslbl.abuse.ch/ssl-certificates/sha1/436f02b3a63406707f6467d4880a691a2a3f53ea/; sid:903208812; rev:1;)

References

urlsslbl.abuse.ch/ssl-certificates/sha1/436f02b3a63406707f6467d4880a691a2a3f53ea/

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