ET MALWARE ReverseRat 2.0 CnC Checkin M2

Query · suricata

flow:established,to_server;
http.method;
content:"POST";
http.uri;
content:!".";
content:!"&";
content:!"=";
http.request_body;
content:"|ed bb a7 14 24 02 2e cc 3f f4|"; startswith; fast_pattern;
http.header_names;
content:!"Referer";
content:!"User-Agent";
Raw source ET MALWARE ReverseRat 2.0 CnC Checkin M2 · 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 2.0 CnC Checkin M2";
    flow:established,to_server;
    http.method;
    content:"POST";
    http.uri;
    content:!".";
    content:!"&";
    content:!"=";
    http.request_body;
    content:"|ed bb a7 14 24 02 2e cc 3f f4|"; startswith; fast_pattern;
    http.header_names;
    content:!"Referer";
    content:!"User-Agent";
    reference:md5,8306b6dee8aca5ad5b3368cd070d5729;
    reference:url,twitter.com/malwrhunterteam/status/1494650167877935104;
    classtype:trojan-activity;
    sid:2035275; rev:2;
    metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, created_at 2022_02_23, deployment Perimeter, malware_family ReverseRAT, confidence Medium, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2022_02_23;
)

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