ET MALWARE Pupy RAT Default TLS Proxy Certificate

Query · suricata

flow:established,to_client;
tls.cert_issuer;
content:"O=Pupy CA"; fast_pattern;
content:"C=ZZ";
target:dest_ip;
Raw source ET MALWARE Pupy RAT Default TLS Proxy Certificate · 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 Pupy RAT Default TLS Proxy Certificate";
    flow:established,to_client;
    tls.cert_issuer;
    content:"O=Pupy CA"; fast_pattern;
    content:"C=ZZ";
    reference:url,github.com/n1nj4sec/pupy/blob/a5d766ea81fdfe3bc2c38c9bdaf10e9b75af3b39/services/proxy/generate.go#L97;
    classtype:command-and-control;
    sid:2046948; rev:1;
    metadata:attack_target Client_and_Server, created_at 2023_07_27, deployment Perimeter, malware_family PupyRat, performance_impact Low, confidence High, signature_severity Critical, updated_at 2023_07_27;
    target:dest_ip;
)

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