ET MALWARE TA406 Related Activity (GET)

Query · suricata

flow:established,to_server;
http.method;
content:"GET";
http.uri;
content:".php?vw="; fast_pattern;
content:"&nv="; within:7;
http.user_agent;
content:"powershell/"; nocase;
http.header_names;
content:!"Referer";
target:src_ip;
Raw source ET MALWARE TA406 Related Activity (GET) · 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 TA406 Related Activity (GET)";
    flow:established,to_server;
    http.method;
    content:"GET";
    http.uri;
    content:".php?vw="; fast_pattern;
    content:"&nv="; within:7;
    http.user_agent;
    content:"powershell/"; nocase;
    http.header_names;
    content:!"Referer";
    reference:md5,d2ed41719424bb024535afa1b2d17f3a;
    classtype:trojan-activity;
    sid:2048041; rev:1;
    metadata:attack_target Client_Endpoint, created_at 2023_09_12, deployment Perimeter, performance_impact Low, confidence Medium, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2023_09_12, reviewed_at 2023_09_12;
    target:src_ip;
)

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