ET MALWARE Tick Group APT Activity (GET)

Query · suricata

flow:established,to_server;
http.request_line;
content:"GET //";
http.user_agent;
content:"|3b 20|Win32|29 3b|"; fast_pattern;
pcre:"/^[0-9]{1,4}$/R";
http.header_names;
content:!"Referer|0d 0a|";
target:src_ip;
Raw source ET MALWARE Tick Group APT 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 -> $EXTERNAL_NET any (
    msg:"ET MALWARE Tick Group APT Activity (GET)";
    flow:established,to_server;
    http.request_line;
    content:"GET //";
    http.user_agent;
    content:"|3b 20|Win32|29 3b|"; fast_pattern;
    pcre:"/^[0-9]{1,4}$/R";
    http.header_names;
    content:!"Referer|0d 0a|";
    reference:md5,cb4a15d941a20985d145cd99fcaf3c82;
    reference:url,asec.ahnlab.com/ko/51150/;
    classtype:trojan-activity;
    sid:2044955; rev:1;
    metadata:attack_target Client_Endpoint, created_at 2023_04_14, deployment Perimeter, confidence Medium, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2023_04_14;
    target:src_ip;
)

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