ET RETIRED Suspected Lazarus APT Related Backdoor Activity (POST) M2

Query · suricata

flow:established,to_server;
http.method;
content:"POST";
http.uri;
content:".asp"; endswith;
http.content_type;
content:"application/x-www-form-urlencoded"; bsize:33;
http.request_body;
content:"jcookie=60d49d"; fast_pattern;
content:"cookie=";
http.header_names;
content:!"Referer|0d 0a|";
Raw source ET RETIRED Suspected Lazarus APT Related Backdoor Activity (POST) 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 RETIRED Suspected Lazarus APT Related Backdoor Activity (POST) M2";
    flow:established,to_server;
    http.method;
    content:"POST";
    http.uri;
    content:".asp"; endswith;
    http.content_type;
    content:"application/x-www-form-urlencoded"; bsize:33;
    http.request_body;
    content:"jcookie=60d49d"; fast_pattern;
    content:"cookie=";
    http.header_names;
    content:!"Referer|0d 0a|";
    reference:url,securelist.com/lazarus-trojanized-defi-app/106195/;
    reference:md5,0b9f4612cdfe763b3d8c8a956157474a;
    classtype:trojan-activity;
    sid:2035766; rev:3;
    metadata:attack_target Client_Endpoint, created_at 2022_04_05, deployment Perimeter, former_category MALWARE, malware_family Lazarus, performance_impact Low, confidence Medium, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2024_09_12, reviewed_at 2024_09_12;
)

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.