ET MALWARE MSIL/Agent.ATS CnC Activity

Query · suricata

flow:established,to_server;
http.uri;
content:"php?Hwid=S-"; fast_pattern;
content:"-"; distance:0;
content:"-"; distance:0;
content:"-"; distance:0;
pcre:"/\.php\?Hwid=[^&]+[0-9](?:&(?:Pc|Etat)=[^&]+)?(?:&user=[^&]+&Ip=[^&]+&Ping=[^&]+&v=[^&]+&Ville=[^&]+&Pays=[^&]+&Region=[^&]+)?$/i";
http.header_names;
content:!"User-Agent|0d 0a|";
content:!"Accept";
content:!"Referer|0d 0a|";
Raw source ET MALWARE MSIL/Agent.ATS 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 -> $EXTERNAL_NET any (
    msg:"ET MALWARE MSIL/Agent.ATS CnC Activity";
    flow:established,to_server;
    http.uri;
    content:"php?Hwid=S-"; fast_pattern;
    content:"-"; distance:0;
    content:"-"; distance:0;
    content:"-"; distance:0;
    pcre:"/\.php\?Hwid=[^&]+[0-9](?:&(?:Pc|Etat)=[^&]+)?(?:&user=[^&]+&Ip=[^&]+&Ping=[^&]+&v=[^&]+&Ville=[^&]+&Pays=[^&]+&Region=[^&]+)?$/i";
    http.header_names;
    content:!"User-Agent|0d 0a|";
    content:!"Accept";
    content:!"Referer|0d 0a|";
    reference:md5,53d3ee595bc5df7e97403906f1415c21;
    classtype:command-and-control;
    sid:2024528; rev:3;
    metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, created_at 2017_08_08, deployment Perimeter, malware_family MSIL_Agent_ATS, performance_impact Moderate, confidence High, signature_severity Major, updated_at 2020_08_11;
)

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