ET MALWARE Unk Spam Bot Template 1 Active - Outbound Malicious Email Spam

alert smtp $HOME_NET any -> any any (
    msg:"ET MALWARE Unk Spam Bot Template 1 Active - Outbound Malicious Email Spam";
    flow:established,to_server;
    content:"Subject|3a 20|";
    pcre:"/^(?:Cek\x20This|miss\x20[A-Za-z0-9]{2,20}|[A-Za-z0-9]{2,20}Porn)\r\n/R";
    content:".scr|22 0d 0a 0d 0a|TVqQ"; distance:0; fast_pattern;
    classtype:trojan-activity;
    sid:2028892; rev:1;
    metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, created_at 2019_10_21, deployment Perimeter, performance_impact Low, confidence High, signature_severity Major, tag SpamBot, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2019_10_21;
)