ET MALWARE Poseidon Stealer Data Exfiltration Attempt

Query · suricata

flow:established,to_server;
http.method;
content:"POST";
http.header;
content:"uuid|3a 20|";
pcre:"/^[a-f0-9]{32}\x0d\x0a/R";
content:"user|3a 20|";
content:"buildid|3a 20|"; fast_pattern;
http.content_type;
content:"application/x-www-form-urlencoded";
http.request_body;
content:"PK|03 04|"; startswith;
content:"__MACOSX/"; within:150;
Raw source ET MALWARE Poseidon Stealer Data Exfiltration Attempt · 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 Poseidon Stealer Data Exfiltration Attempt";
    flow:established,to_server;
    http.method;
    content:"POST";
    http.header;
    content:"uuid|3a 20|";
    pcre:"/^[a-f0-9]{32}\x0d\x0a/R";
    content:"user|3a 20|";
    content:"buildid|3a 20|"; fast_pattern;
    http.content_type;
    content:"application/x-www-form-urlencoded";
    http.request_body;
    content:"PK|03 04|"; startswith;
    content:"__MACOSX/"; within:150;
    reference:url,www.malwarebytes.com/blog/news/2024/06/poseidon-mac-stealer-distributed-via-google-ads;
    classtype:trojan-activity;
    sid:2054173; rev:1;
    metadata:affected_product Mac_OSX, attack_target Client_Endpoint, tls_state plaintext, created_at 2024_07_01, deployment Perimeter, performance_impact Low, confidence High, signature_severity Major, updated_at 2024_07_01;
)

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