ET MALWARE Manjusaka CnC Server Response

Query · suricata

flow:established,to_client;
http.stat_code;
content:"200";
http.content_type;
content:"image/png";
http.content_len;
byte_test:0,=,5,0,string,dec;
http.response_body;
content:"|1a 1a 6e 04 29|"; fast_pattern;
Raw source ET MALWARE Manjusaka CnC Server Response · 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 Manjusaka CnC Server Response";
    flow:established,to_client;
    http.stat_code;
    content:"200";
    http.content_type;
    content:"image/png";
    http.content_len;
    byte_test:0,=,5,0,string,dec;
    http.response_body;
    content:"|1a 1a 6e 04 29|"; fast_pattern;
    reference:url,blog.talosintelligence.com/2022/08/manjusaka-offensive-framework.html;
    classtype:trojan-activity;
    sid:2037888; rev:1;
    metadata:attack_target Client_and_Server, created_at 2022_08_02, deployment Perimeter, performance_impact Low, confidence High, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2022_08_02;
)

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