ET MALWARE Win32/LeftHook Stealer CnC Activity (GET) M2

Query · suricata

flow:established,to_server;
http.method;
content:"GET";
http.uri;
content:".php?code_request="; fast_pattern;
http.connection;
content:"keep-alive";
http.host;
pcre:"/^(?:[0-9]{1,3}\.){3}[0-9]{1,3}$/";
Raw source ET MALWARE Win32/LeftHook Stealer CnC Activity (GET) 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 -> $EXTERNAL_NET any (
    msg:"ET MALWARE Win32/LeftHook Stealer CnC Activity (GET) M2";
    flow:established,to_server;
    http.method;
    content:"GET";
    http.uri;
    content:".php?code_request="; fast_pattern;
    http.connection;
    content:"keep-alive";
    http.host;
    pcre:"/^(?:[0-9]{1,3}\.){3}[0-9]{1,3}$/";
    reference:md5,61bb691f0c875d3d82521a6fa878e402;
    reference:url,twitter.com/Jane_0sint/status/1648075834702413830;
    classtype:trojan-activity;
    sid:2045002; rev:1;
    metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, created_at 2023_04_18, deployment Perimeter, malware_family Win32_LeftHook, confidence High, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2023_04_18;
)

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.