ET MALWARE Saint Bot CnC Activity

Query · suricata

flow:established,to_server;
http.method;
content:"POST";
http.uri;
content:"/gate.php";
http.header;
content:"Accept|3a 20|text/plain";
http.request_body;
content:"transfer="; depth:9; fast_pattern;
pcre:"/^transfer=[A-Za-z0-9/+=]+$/";
Raw source ET MALWARE Saint Bot CnC Activity · 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 -> $EXTERNAL_NET any (
    msg:"ET MALWARE Saint Bot CnC Activity";
    flow:established,to_server;
    http.method;
    content:"POST";
    http.uri;
    content:"/gate.php";
    http.header;
    content:"Accept|3a 20|text/plain";
    http.request_body;
    content:"transfer="; depth:9; fast_pattern;
    pcre:"/^transfer=[A-Za-z0-9/+=]+$/";
    reference:md5,b1f40eac7ca6d66ba9b11dcf77f1a259;
    reference:url,blog.malwarebytes.com/threat-analysis/2021/04/a-deep-dive-into-saint-bot-downloader/;
    classtype:trojan-activity;
    sid:2032753; rev:2;
    metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, created_at 2021_03_16, deployment Perimeter, confidence High, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2021_03_16;
)

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