ET MALWARE ReverseRAT Activity (POST) M4

Query · suricata

flow:established,to_server;
http.method;
content:"POST";
http.uri;
content:"/h_tt_p"; fast_pattern; bsize:7;
http.header_names;
content:!"User-Agent";
content:!"Referer";
content:!"Accept";
Raw source ET MALWARE ReverseRAT Activity (POST) M4 · 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 ReverseRAT Activity (POST) M4";
    flow:established,to_server;
    http.method;
    content:"POST";
    http.uri;
    content:"/h_tt_p"; fast_pattern; bsize:7;
    http.header_names;
    content:!"User-Agent";
    content:!"Referer";
    content:!"Accept";
    reference:md5,14a2b8af48b6db92f047525d893eaeb8;
    reference:url,blog.lumen.com/suspected-pakistani-actor-compromises-indian-power-company-with-new-reverserat/;
    classtype:trojan-activity;
    sid:2033172; rev:3;
    metadata:attack_target Client_Endpoint, created_at 2021_06_24, deployment Perimeter, malware_family ReverseRAT, performance_impact Low, confidence High, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2021_07_16;
)

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