ET MALWARE Meterpreter or Other Reverse Shell SSL Cert

Query · suricata

flow:established,to_client;
tls.cert_serial;
content:"08:BB:00:EE"; bsize:11; fast_pattern;
tls.cert_subject; bsize:25;
content:"C|3d 2c 20|ST|3d 2c 20|L|3d 2c 20|O|3d 2c 20|OU|3d 2c 20|CN|3d|";
Raw source ET MALWARE Meterpreter or Other Reverse Shell SSL Cert · Suricata
Esc
Published by Emerging Threats Open ↗, licensed under BSD 3-Clause ↗. Line breaks added for readability; the rule is otherwise unchanged. 
alert tls $EXTERNAL_NET any -> $HOME_NET any (
    msg:"ET MALWARE Meterpreter or Other Reverse Shell SSL Cert";
    flow:established,to_client;
    tls.cert_serial;
    content:"08:BB:00:EE"; bsize:11; fast_pattern;
    tls.cert_subject; bsize:25;
    content:"C|3d 2c 20|ST|3d 2c 20|L|3d 2c 20|O|3d 2c 20|OU|3d 2c 20|CN|3d|";
    reference:md5,c3f76f444edf0b90b887d7979342e9f0;
    classtype:trojan-activity;
    sid:2035651; rev:3;
    metadata:attack_target Client_Endpoint, created_at 2015_09_22, deployment Perimeter, confidence High, signature_severity Major, tag SSL_Malicious_Cert, updated_at 2024_04_25;
)

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