ET MALWARE MSIL/G2 Stealer/GravityRAT CnC Checkin

Query · suricata

flow:established,to_server;
http.method;
content:"POST";
http.uri;
content:".php?Value=";
content:"UserCode="; distance:0;
content:"MacId="; distance:0;
content:"HitDate="; distance:0;
content:"FingerPrint="; distance:0; fast_pattern;
content:"CurrentIp=";
http.header_names;
content:!"Accept";
content:!"User-Agent";
content:!"Cache";
content:!"Connection";
Raw source ET MALWARE MSIL/G2 Stealer/GravityRAT 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 MSIL/G2 Stealer/GravityRAT CnC Checkin";
    flow:established,to_server;
    http.method;
    content:"POST";
    http.uri;
    content:".php?Value=";
    content:"UserCode="; distance:0;
    content:"MacId="; distance:0;
    content:"HitDate="; distance:0;
    content:"FingerPrint="; distance:0; fast_pattern;
    content:"CurrentIp=";
    http.header_names;
    content:!"Accept";
    content:!"User-Agent";
    content:!"Cache";
    content:!"Connection";
    reference:md5,6899c2219764bac56007ce80021bfcbf;
    reference:url,blog.talosintelligence.com/2018/04/gravityrat-two-year-evolution-of-apt.html;
    classtype:command-and-control;
    sid:2025540; rev:2;
    metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, created_at 2018_04_26, deployment Perimeter, malware_family GravityRAT, performance_impact Low, confidence High, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2020_08_25;
)

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