ET MALWARE Possible TA410 APT FlowCloud Dependency Download

Query · suricata

flow:established,to_server;
http.method;
content:"GET";
http.uri;
content:".DAT"; endswith;
pcre:"/\/[A-Z0-9]{4,8}\/[A-Z0-9]{8}\.DAT$/";
http.header_names;
content:"|0d 0a|Host|0d 0a|Cache-Control|0d 0a 0d 0a|"; depth:25;
http.host.raw;
content:"|3a|";
Raw source ET MALWARE Possible TA410 APT FlowCloud Dependency Download · Suricata
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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 -> $EXTERNAL_NET [!80,!443] (
    msg:"ET MALWARE Possible TA410 APT FlowCloud Dependency Download";
    flow:established,to_server;
    http.method;
    content:"GET";
    http.uri;
    content:".DAT"; endswith;
    pcre:"/\/[A-Z0-9]{4,8}\/[A-Z0-9]{8}\.DAT$/";
    http.header_names;
    content:"|0d 0a|Host|0d 0a|Cache-Control|0d 0a 0d 0a|"; depth:25;
    http.host.raw;
    content:"|3a|";
    classtype:trojan-activity;
    sid:2036388; rev:1;
    metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, created_at 2020_10_12, deployment Perimeter, malware_family TA410, confidence Medium, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2020_10_12;
)

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