ET MALWARE Gamaredon APT Backdoor Related Activity

Query · suricata

flow:established,to_server;
http.protocol;
content:"HTTP/1.";
http.header;
content:"user-agent|3a 20|mozilla/5.0"; fast_pattern;
http.user_agent;
content:"|3b 3b|";
content:"|3b 3b 2f|"; distance:0;
content:"|2e|"; endswith;
Raw source ET MALWARE Gamaredon APT Backdoor Related Activity · 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 Gamaredon APT Backdoor Related Activity";
    flow:established,to_server;
    http.protocol;
    content:"HTTP/1.";
    http.header;
    content:"user-agent|3a 20|mozilla/5.0"; fast_pattern;
    http.user_agent;
    content:"|3b 3b|";
    content:"|3b 3b 2f|"; distance:0;
    content:"|2e|"; endswith;
    reference:md5,5c645e5dcb6bec4ab1bcb3f68421445a;
    classtype:trojan-activity;
    sid:2038973; rev:1;
    metadata:attack_target Client_Endpoint, created_at 2022_09_26, deployment Perimeter, malware_family Gamaredon, performance_impact Low, confidence High, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2022_09_26;
)

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