ET MALWARE Possible Gamaredon APT Related Malicious Shortcut Activity (GET)

Query · suricata

flow:established,to_server;
http.method;
content:"GET";
http.uri;
content:"/favicon.ico"; endswith;
http.host;
content:"military-ukraine."; fast_pattern;
http.header_names;
content:!"Referer|0d 0a|";
Raw source ET MALWARE Possible Gamaredon APT Related Malicious Shortcut 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 Possible Gamaredon APT Related Malicious Shortcut Activity (GET)";
    flow:established,to_server;
    http.method;
    content:"GET";
    http.uri;
    content:"/favicon.ico"; endswith;
    http.host;
    content:"military-ukraine."; fast_pattern;
    http.header_names;
    content:!"Referer|0d 0a|";
    reference:md5,c0d3a0ab9b47ab9bc81cf5d831053431;
    reference:md5,7b20e3ac2a4ebf507f6c8358245d5db5;
    classtype:trojan-activity;
    sid:2036214; rev:1;
    metadata:attack_target Client_Endpoint, created_at 2022_04_14, deployment Perimeter, malware_family Gamaredon, confidence Medium, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2022_04_14;
)

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