ET MALWARE TA444 MacOS/ProcessRequest CnC Checkin

Query · suricata

flow:established,to_server;
http.method;
content:"POST";
http.content_type;
content:"application/json";
http.user_agent;
content:"CFNetwork/";
content:"Darwin/";
http.request_body;
content:"|7b 22|sdf|22 3a 22|"; startswith;
content:"|22 2c 22|info|22 3a 22|Version 1"; fast_pattern; distance:0;
content:"|28|Build"; distance:0;
target:src_ip;
Raw source ET MALWARE TA444 MacOS/ProcessRequest CnC Checkin · Suricata
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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 TA444 MacOS/ProcessRequest CnC Checkin";
    flow:established,to_server;
    http.method;
    content:"POST";
    http.content_type;
    content:"application/json";
    http.user_agent;
    content:"CFNetwork/";
    content:"Darwin/";
    http.request_body;
    content:"|7b 22|sdf|22 3a 22|"; startswith;
    content:"|22 2c 22|info|22 3a 22|Version 1"; fast_pattern; distance:0;
    content:"|28|Build"; distance:0;
    reference:md5,a446402c1de5dfddd50b77a95fcfc671;
    reference:md5,9294648d744703cfa0456ec74d014fe4;
    classtype:trojan-activity;
    sid:2048315; rev:1;
    metadata:affected_product Mac_OSX, attack_target Client_Endpoint, created_at 2023_09_27, deployment Perimeter, malware_family ProcessRequest, performance_impact Low, confidence High, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2023_09_27, reviewed_at 2023_09_27;
    target:src_ip;
)

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