ET MALWARE W32/Witch.3FA0!tr CnC Activity M2

Query · suricata

flow:established,to_server;
http.request_line;
content:"GET /?opt=put&mq=loader_tx_report"; startswith; fast_pattern;
http.header_names;
content:!"|0d 0a|User-Agent|0d 0a|";
http.uri;
content:"&mac=";
content:"&pcname="; distance:12; within:8;
Raw source ET MALWARE W32/Witch.3FA0!tr CnC Activity M2 · Suricata
Esc
Published by Emerging Threats Open ↗, licensed under BSD 3-Clause ↗. Line breaks added for readability; the rule is otherwise unchanged. 
alert http $HOME_NET any -> $EXTERNAL_NET any (
    msg:"ET MALWARE W32/Witch.3FA0!tr CnC Activity M2";
    flow:established,to_server;
    http.request_line;
    content:"GET /?opt=put&mq=loader_tx_report"; startswith; fast_pattern;
    http.header_names;
    content:!"|0d 0a|User-Agent|0d 0a|";
    http.uri;
    content:"&mac=";
    content:"&pcname="; distance:12; within:8;
    reference:md5,c52f17b858b143310dc1cb218feca5c8;
    classtype:command-and-control;
    sid:2034220; rev:2;
    metadata:attack_target Client_Endpoint, created_at 2021_10_18, deployment Perimeter, performance_impact Low, confidence High, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2021_10_18;
)

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