ET MALWARE Win32/Phorpiex Template 9 Active - Outbound Malicious Email Spam

alert smtp $HOME_NET any -> $EXTERNAL_NET any (
    msg:"ET MALWARE Win32/Phorpiex Template 9 Active - Outbound Malicious Email Spam";
    flow:established,to_server;
    content:"Subject|3a 20|";
    pcre:"/^(I\x20RECORDED\x20YOU|YOUR\x20DEVICE\x20AND\x20EMAIL)/R";
    content:"some|20|bad|20|news"; fast_pattern; nocase;
    content:"my|20|private|20|"; nocase;
    pcre:"/^(malware|trojan)/R";
    content:"|20|Bitcoin|20 28|BTC|29|"; nocase;
    threshold:type limit, count 1, seconds 60, track by_src;
    classtype:social-engineering;
    sid:2045229; rev:2;
    metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, tls_state plaintext, created_at 2023_04_27, deployment Perimeter, deployment Internal, malware_family Win32_Phorpiex, confidence High, signature_severity Major, tag SpamBot, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2024_08_27;
    target:dest_ip;
)