ET MALWARE SainboxRAT CnC Config Request

Query · suricata

flow:established,to_server;
flowbits:set,ET.sainbox.config;
http.uri;
content:".txt"; endswith;
http.host; bsize:26;
content:"gist.githubusercontent.com"; fast_pattern;
http.user_agent; bsize:11;
content:"Mozilla/5.0";
http.header_names; bsize:37;
content:"|0d 0a|user-agent|0d 0a|host|0d 0a|cache-control|0d 0a 0d 0a|"; nocase;
target:src_ip;

Rule dependencies

Feeds into

  • 1 rule read ET.sainbox.config · view all
Raw source ET MALWARE SainboxRAT CnC Config Request · 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 SainboxRAT CnC Config Request";
    flow:established,to_server;
    flowbits:set,ET.sainbox.config;
    http.uri;
    content:".txt"; endswith;
    http.host; bsize:26;
    content:"gist.githubusercontent.com"; fast_pattern;
    http.user_agent; bsize:11;
    content:"Mozilla/5.0";
    http.header_names; bsize:37;
    content:"|0d 0a|user-agent|0d 0a|host|0d 0a|cache-control|0d 0a 0d 0a|"; nocase;
    classtype:trojan-activity;
    sid:2069282; rev:1;
    metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, tls_state TLSDecrypt, created_at 2026_05_14, deployment Perimeter, deployment SSLDecrypt, malware_family Sainbox, confidence Medium, signature_severity Major, tag c2, updated_at 2026_05_14, 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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