ET MALWARE W32/Witch.3FA0!tr CnC Activity M3

Query · suricata

flow:established,to_server;
http.request_line;
content:"POST /?opt=put&type="; startswith; fast_pattern;
http.header_names;
content:!"|0d 0a|User-Agent|0d 0a|";
http.request_body;
content:"|22|mac|22 3a 22|";
content:"|22|pcname|22 3a 22|"; distance:14; within:10;
Raw source ET MALWARE W32/Witch.3FA0!tr CnC Activity M3 · 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 M3";
    flow:established,to_server;
    http.request_line;
    content:"POST /?opt=put&type="; startswith; fast_pattern;
    http.header_names;
    content:!"|0d 0a|User-Agent|0d 0a|";
    http.request_body;
    content:"|22|mac|22 3a 22|";
    content:"|22|pcname|22 3a 22|"; distance:14; within:10;
    reference:md5,4e24d219ba1790b93347110fd1bfcb6b;
    classtype:trojan-activity;
    sid:2034959; rev:1;
    metadata:attack_target Client_Endpoint, created_at 2022_01_24, deployment Perimeter, performance_impact Low, confidence High, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2022_01_24;
)

Detection rules belong to the projects that publish them and remain under their own licenses. This site indexes and links to them; it claims no rights in them.