ET MALWARE Lazarus Downloader (JEUSD) CnC Beacon

alert http $HOME_NET any -> $EXTERNAL_NET any (
    msg:"ET MALWARE Lazarus Downloader (JEUSD) CnC Beacon";
    flow:established,to_server;
    http.method;
    content:"POST";
    http.request_body;
    content:"Content-Disposition|3a 20|form-data|3b 20|name=|22|upload|22 3b 20|filename=|22|temp.gif|22 0d 0a|"; fast_pattern;
    http.header_names;
    content:!"Referer|0d 0a|";
    reference:url,blogs.360.cn/blog/apt-c-26/;
    reference:md5,5509ee41b79c5d82e96038993f0bf3fa;
    reference:url,us-cert.cisa.gov/ncas/analysis-reports/ar21-048a;
    classtype:command-and-control;
    sid:2025991; rev:2;
    metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, created_at 2018_08_15, deployment Perimeter, malware_family JEUSD, confidence High, signature_severity Major, tag Lazarus, tag c2, updated_at 2020_08_25, mitre_tactic_id TA0010, mitre_tactic_name Exfiltration, mitre_technique_id T1041, mitre_technique_name Exfiltration_Over_C2_Channel;
)