ET MALWARE Unknown Stealer Victim Profile Exfiltration (POST)

Query · suricata

flow:established,to_server;
urilen:7;
http.method;
content:"POST";
http.uri;
content:"/upload";
http.request_body;
content:"Content|2d|Disposition|3a 20|form|2d|data|3b 20|name|3d 22|file|22 3b 20|filename|3d 22|SystemInfo|5f|"; fast_pattern;
content:"|0a 0d 0a ff fe|C|00|o|00|m|00|p|00|u|00|t|00|e|00|r|00 20 00|N|00|a|00|m|00|e|00 3a|"; distance:0;
target:src_ip;
Raw source ET MALWARE Unknown Stealer Victim Profile Exfiltration (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 Unknown Stealer Victim Profile Exfiltration (POST)";
    flow:established,to_server;
    urilen:7;
    http.method;
    content:"POST";
    http.uri;
    content:"/upload";
    http.request_body;
    content:"Content|2d|Disposition|3a 20|form|2d|data|3b 20|name|3d 22|file|22 3b 20|filename|3d 22|SystemInfo|5f|"; fast_pattern;
    content:"|0a 0d 0a ff fe|C|00|o|00|m|00|p|00|u|00|t|00|e|00|r|00 20 00|N|00|a|00|m|00|e|00 3a|"; distance:0;
    reference:md5,4d1de234e39d796efe5319a4903001ff;
    classtype:command-and-control;
    sid:2060950; rev:1;
    metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, tls_state plaintext, created_at 2025_03_18, deployment Perimeter, confidence High, signature_severity Critical, tag c2, updated_at 2025_03_18, mitre_tactic_id TA0011, mitre_tactic_name Command_And_Control, mitre_technique_id T1071, mitre_technique_name Application_Layer_Protocol;
    target:src_ip;
)

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