SSLBL: Malicious SSL certificate detected (QuasarRAT C&C)
Sourcesslbl/ssl-fp-blacklist
CreatedSeptember 15, 2025
UpdatedSeptember 15, 2025
alert tls $EXTERNAL_NET any -> $HOME_NET any (msg:"SSLBL: Malicious SSL certificate detected (QuasarRAT C&C)"; tls_cert_fingerprint; content:"4b:21:71:59:b5:6b:ec:38:28:f4:4f:0f:ac:da:0c:74:13:ba:02:c1"; reference:url, sslbl.abuse.ch/ssl-certificates/sha1/4b217159b56bec3828f44f0facda0c7413ba02c1/; sid:903207926; rev:1;)
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