ET MALWARE x64/Generic Red Team CnC Activity (POST)

Query · suricata

flow:established,to_server;
urilen:11;
http.method;
content:"POST";
http.uri;
content:"/help/reply"; fast_pattern;
http.content_len;
pcre:"/^2[0-9]{2}$/R";
Raw source ET MALWARE x64/Generic Red Team CnC 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 -> $EXTERNAL_NET any (
    msg:"ET MALWARE x64/Generic Red Team CnC Activity (POST)";
    flow:established,to_server;
    urilen:11;
    http.method;
    content:"POST";
    http.uri;
    content:"/help/reply"; fast_pattern;
    http.content_len;
    pcre:"/^2[0-9]{2}$/R";
    reference:md5,62bbc3b087c803260c0c63595cf872ee;
    classtype:trojan-activity;
    sid:2052810; rev:1;
    metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, tls_state TLSDecrypt, created_at 2024_05_21, deployment Perimeter, deployment SSLDecrypt, confidence Medium, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2024_05_21, mitre_tactic_id TA0011, mitre_tactic_name Command_And_Control, mitre_technique_id T1071, mitre_technique_name Application_Layer_Protocol;
)

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