ET MALWARE Gamaredon APT Related Maldoc Activity (GET)

Query · suricata

flow:established,to_server;
http.method;
content:"GET";
http.uri;
content:".mot"; endswith; fast_pattern;
http.header_names;
content:!"Referer";
http.user_agent;
content:!"@"; startswith;
target:src_ip;
Raw source ET MALWARE Gamaredon APT Related Maldoc 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 Gamaredon APT Related Maldoc Activity (GET)";
    flow:established,to_server;
    http.method;
    content:"GET";
    http.uri;
    content:".mot"; endswith; fast_pattern;
    http.header_names;
    content:!"Referer";
    http.user_agent;
    content:!"@"; startswith;
    reference:md5,fef34c28f4e73d1c8d60dde708819b1a;
    reference:url,github.com/pan-unit42/iocs/blob/master/Gamaredon/Gamaredon_IoCs_DEC2022.txt;
    reference:url,unit42.paloaltonetworks.com/trident-ursa/;
    classtype:trojan-activity;
    sid:2042977; rev:2;
    metadata:attack_target Client_Endpoint, created_at 2022_12_21, deployment Perimeter, malware_family Gamaredon, confidence Medium, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2022_12_28, reviewed_at 2023_09_01;
    target:src_ip;
)

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