ET MALWARE VKeylogger CnC Checkin

Query · suricata

flow:established,to_server;
http.method;
content:"POST";
http.uri; bsize:26;
pcre:"/^\x2f[A-Za-z0-9]{16}/";
content:"/gate.php"; fast_pattern; endswith;
http.header_names;
content:"|0d 0a|Connection|0d 0a|Content-Length|0d 0a|Host|0d 0a 0d 0a|";
http.request_body; bsize:50<>200;
target:src_ip;
Raw source ET MALWARE VKeylogger CnC Checkin · 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 VKeylogger CnC Checkin";
    flow:established,to_server;
    http.method;
    content:"POST";
    http.uri; bsize:26;
    pcre:"/^\x2f[A-Za-z0-9]{16}/";
    content:"/gate.php"; fast_pattern; endswith;
    http.header_names;
    content:"|0d 0a|Connection|0d 0a|Content-Length|0d 0a|Host|0d 0a 0d 0a|";
    http.request_body; bsize:50<>200;
    reference:md5,5787ea8e8245606f5058f20179a82683;
    reference:url,infosec.exchange/@james_inthe_box/114467642193592872;
    classtype:trojan-activity;
    sid:2062154; rev:1;
    metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, affected_product Windows_11, attack_target Client_and_Server, tls_state plaintext, created_at 2025_05_07, deployment Perimeter, malware_family VKeylogger, performance_impact Moderate, confidence High, signature_severity Major, updated_at 2025_05_07, mitre_tactic_id TA0037, mitre_tactic_name Command_And_Control, mitre_technique_id T1041, mitre_technique_name Exfiltration_Over_C2_Channel;
    target:src_ip;
)

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