ET MALWARE YoroTrooper APT Related Activty (GET)

Query · suricata

flow:established,to_server;
http.method;
content:"GET";
http.uri;
content:"/rat.php"; bsize:8;
http.user_agent;
content:"powershell"; nocase;
http.header_names;
content:!"Referer";
content:!"Accept";
target:src_ip;
Raw source ET MALWARE YoroTrooper APT Related Activty (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 YoroTrooper APT Related Activty (GET)";
    flow:established,to_server;
    http.method;
    content:"GET";
    http.uri;
    content:"/rat.php"; bsize:8;
    http.user_agent;
    content:"powershell"; nocase;
    http.header_names;
    content:!"Referer";
    content:!"Accept";
    reference:md5,4aa02a7e7e7976e1afca9469c2c54729;
    reference:url,blog.talosintelligence.com/attributing-yorotrooper/;
    classtype:trojan-activity;
    sid:2049809; rev:1;
    metadata:attack_target Client_Endpoint, created_at 2023_12_21, deployment Perimeter, confidence Medium, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2023_12_21;
    target:src_ip;
)

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.