ET INFO Onion/TOR Proxy Client Request

Query · suricata

flow:established,to_server;
content:"|05 01 00|"; startswith;
content:".onion"; distance:0; fast_pattern;
isdataat:!3,relative;
flowbits:set,ET.zhtrap1;
target:src_ip;

Rule dependencies

Feeds into

Raw source ET INFO Onion/TOR Proxy Client Request · Suricata
Esc
Published by Emerging Threats Open ↗, licensed under BSD 3-Clause ↗. Line breaks added for readability; the rule is otherwise unchanged. 
alert tcp [$HOME_NET,$HTTP_SERVERS] any -> $EXTERNAL_NET any (
    msg:"ET INFO Onion/TOR Proxy Client Request";
    flow:established,to_server;
    content:"|05 01 00|"; startswith;
    content:".onion"; distance:0; fast_pattern;
    isdataat:!3,relative;
    flowbits:set,ET.zhtrap1;
    reference:url,blog.netlab.360.com/new_threat_zhtrap_botnet_en/;
    classtype:bad-unknown;
    sid:2032083; rev:2;
    metadata:attack_target Client_and_Server, created_at 2021_03_16, deployment Perimeter, confidence High, signature_severity Informational, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2022_12_08;
    target:src_ip;
)

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