ET INFO Tor2Web .onion Proxy Service SSL Cert (2)

Query · suricata

flow:established,to_client;
tls.cert_subject;
content:"CN=*.onion."; nocase;
pcre:"/^(?:sh|lu|to)/Ri";
Raw source ET INFO Tor2Web .onion Proxy Service SSL Cert (2) · 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 INFO Tor2Web .onion Proxy Service SSL Cert (2)";
    flow:established,to_client;
    tls.cert_subject;
    content:"CN=*.onion."; nocase;
    pcre:"/^(?:sh|lu|to)/Ri";
    reference:url,uscyberlabs.com/blog/2013/04/30/tor-exploit-pak/;
    classtype:misc-activity;
    sid:2016810; rev:8;
    metadata:attack_target Client_Endpoint, created_at 2013_05_02, deployment Perimeter, performance_impact Low, confidence High, signature_severity Informational, tag TOR_Proxy, updated_at 2023_05_25;
)

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