ET MALWARE Proyecto RAT Variant - Yopmail Stage 2 CnC Retrieval

Query · suricata

flow:established,from_server;
flowbits:isset,ET.Proyecto.YopmailLogin;
http.stat_code;
content:"200";
http.response_body;
content:"|3c|span class|3d 22|lms|22 3e c2 a1|"; fast_pattern;
content:"|c2 a1|</span>"; within:30;

Rule dependencies

⚠ Higher-order rule. It fires on other rules' alerts, not on raw events, so it cannot fire on its own. Deploy the rules it depends on too.

Depends on

Raw source ET MALWARE Proyecto RAT Variant - Yopmail Stage 2 CnC Retrieval · Suricata
Esc
Published by Emerging Threats Open ↗, licensed under BSD 3-Clause ↗. Line breaks added for readability; the rule is otherwise unchanged. 
alert http $EXTERNAL_NET any -> $HOME_NET any (
    msg:"ET MALWARE Proyecto RAT Variant - Yopmail Stage 2 CnC Retrieval";
    flow:established,from_server;
    flowbits:isset,ET.Proyecto.YopmailLogin;
    http.stat_code;
    content:"200";
    http.response_body;
    content:"|3c|span class|3d 22|lms|22 3e c2 a1|"; fast_pattern;
    content:"|c2 a1|</span>"; within:30;
    reference:md5,295d31fd532ed0257149b191146b5236;
    reference:url,blog.trendmicro.com/trendlabs-security-intelligence/spam-campaign-targets-colombian-entities-with-custom-proyecto-rat-email-service-yopmail-for-cc/;
    classtype:command-and-control;
    sid:2027735; rev:3;
    metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, created_at 2019_07_19, deployment Perimeter, performance_impact Low, confidence High, signature_severity Major, tag RAT, updated_at 2020_08_31;
)

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