ET MALWARE APT28/FancyBear Related Activity (POST)

Query · suricata

flow:established,to_server;
http.method;
content:"POST";
http.host;
content:"microsoftonline.com";
http.request_body;
content:"client_id=62272a08-fe9d-4825-bc65-203842ff92bc"; startswith; fast_pattern;
http.header_names;
content:!"Referer";
Raw source ET MALWARE APT28/FancyBear Related Activity (POST) · 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 APT28/FancyBear Related Activity (POST)";
    flow:established,to_server;
    http.method;
    content:"POST";
    http.host;
    content:"microsoftonline.com";
    http.request_body;
    content:"client_id=62272a08-fe9d-4825-bc65-203842ff92bc"; startswith; fast_pattern;
    http.header_names;
    content:!"Referer";
    reference:url,blog.cluster25.duskrise.com/2022/09/23/in-the-footsteps-of-the-fancy-bear-powerpoint-graphite/;
    reference:md5,2ff3e6c9244ef965295aa60879d1aa6b;
    classtype:trojan-activity;
    sid:2038958; rev:1;
    metadata:attack_target Client_Endpoint, created_at 2022_09_23, deployment Perimeter, deployment SSLDecrypt, malware_family APT28, malware_family Fancy_Bear, confidence High, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2022_09_23;
)

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