ET RETIRED MacOS/RustBucket System Information Exfiltration Attempt

Query · suricata

flow:established,to_server;
http.method;
content:"POST";
http.request_body;
content:"|0a|OSX|20|1";
pcre:"/^[0123]\.\d{1,3}\.\d{1,3}/R";
content:"|20|/sbin/launchd|0a|"; within:300; fast_pattern;
threshold:type limit, count 5, seconds 300, track by_src;
target:src_ip;
Raw source ET RETIRED MacOS/RustBucket System Information Exfiltration Attempt · 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 RETIRED MacOS/RustBucket System Information Exfiltration Attempt";
    flow:established,to_server;
    http.method;
    content:"POST";
    http.request_body;
    content:"|0a|OSX|20|1";
    pcre:"/^[0123]\.\d{1,3}\.\d{1,3}/R";
    content:"|20|/sbin/launchd|0a|"; within:300; fast_pattern;
    threshold:type limit, count 5, seconds 300, track by_src;
    reference:md5,e91559d036be0880ab0ce89eba9fa8d1;
    reference:url,tria.ge/230705-1ltfeaga57/;
    classtype:trojan-activity;
    sid:2047616; rev:3;
    metadata:affected_product Mac_OSX, attack_target Client_Endpoint, created_at 2023_08_10, deployment Perimeter, former_category MALWARE, malware_family MacOS_RustBucket, performance_impact Low, confidence High, signature_severity Major, updated_at 2025_04_17, reviewed_at 2025_04_17;
    target:src_ip;
)

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