ET MALWARE Sarwent CnC Response (powershell_exec)

Query · suricata

flow:established,to_server;
http.method;
content:"POST";
http.uri;
content:"/gate/powershell_exec"; startswith; fast_pattern;
http.request_body;
content:"form-data|3b 20|name=|22|command|22 0d 0a 0d 0a|";
content:"form-data|3b 20|name=|22|hwid|22 0d 0a 0d 0a|";
Raw source ET MALWARE Sarwent CnC Response (powershell_exec) · Suricata
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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 Sarwent CnC Response (powershell_exec)";
    flow:established,to_server;
    http.method;
    content:"POST";
    http.uri;
    content:"/gate/powershell_exec"; startswith; fast_pattern;
    http.request_body;
    content:"form-data|3b 20|name=|22|command|22 0d 0a 0d 0a|";
    content:"form-data|3b 20|name=|22|hwid|22 0d 0a 0d 0a|";
    reference:md5,184614b60a03355c9a4e668d702fb200;
    classtype:command-and-control;
    sid:2029817; rev:2;
    metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, created_at 2020_04_06, deployment Perimeter, confidence High, signature_severity Major, updated_at 2020_04_06;
)

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