ET MALWARE Atomic MacOS Stealer CnC Exfil (POST)

Query · suricata

flow:established,to_server;
urilen:8;
http.method;
content:"POST";
http.uri;
content:"/sendlog"; fast_pattern;
http.header_names;
content:"|0d 0a|Host|0d 0a|Content-Type|0d 0a|Content-Length|0d 0a 0d 0a|"; bsize:40;
http.content_type;
content:"application|2f|x|2d|www|2d|form|2d|urlencoded"; bsize:33;
http.host;
pcre:"/^(?:[0-9]{1,3}\.){3}[0-9]{1,3}$/";
Raw source ET MALWARE Atomic MacOS Stealer CnC Exfil (POST) · 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 -> $EXTERNAL_NET any (
    msg:"ET MALWARE Atomic MacOS Stealer CnC Exfil (POST)";
    flow:established,to_server;
    urilen:8;
    http.method;
    content:"POST";
    http.uri;
    content:"/sendlog"; fast_pattern;
    http.header_names;
    content:"|0d 0a|Host|0d 0a|Content-Type|0d 0a|Content-Length|0d 0a 0d 0a|"; bsize:40;
    http.content_type;
    content:"application|2f|x|2d|www|2d|form|2d|urlencoded"; bsize:33;
    http.host;
    pcre:"/^(?:[0-9]{1,3}\.){3}[0-9]{1,3}$/";
    reference:url,twitter.com/x3ph1/status/1703492680951509154;
    classtype:trojan-activity;
    sid:2048103; rev:1;
    metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, created_at 2023_09_18, deployment Perimeter, confidence Medium, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2023_09_18, reviewed_at 2023_09_18;
)

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