ET MALWARE Win32/Lumma Stealer Data Exfiltration Attempt M2

alert http $HOME_NET any -> $EXTERNAL_NET any (
    msg:"ET MALWARE Win32/Lumma Stealer Data Exfiltration Attempt M2";
    flow:established,to_server;
    http.method;
    content:"POST";
    http.uri;
    content:"/c2sock"; bsize:7; nocase;
    http.request_body;
    content:"Content-Disposition|3a 20|form-data|3b 20|name|3d 22|file|22 3b 20|filename|3d 22|file|22 0d 0a|Content-Type|3a 20|attachment/x-object|0d 0a 0d 0a|PK"; fast_pattern;
    content:"Content-Disposition|3a 20|form-data|3b 20|name|3d 22|hwid|22 0d 0a 0d 0a 7b|";
    pcre:"/^[0-9a-f]{8}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{12}\x7d/R";
    content:"Content-Disposition|3a 20|form-data|3b 20|name|3d 22|pid|22|";
    content:"Content-Disposition|3a 20|form-data|3b 20|name|3d 22|lid|22|";
    reference:md5,9dcde1edfdd83f7cc28dcd31323be326;
    reference:md5,b3b025b8445dcbd9b7aca560ad752b74;
    classtype:trojan-activity;
    sid:2043206; rev:2;
    metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, created_at 2023_01_04, deployment Perimeter, malware_family lumma, performance_impact Low, confidence High, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2023_02_03, reviewed_at 2025_07_14;
    target:src_ip;
)