ET MALWARE MAGICHOUND.FETCH CnC Beacon

alert http $HOME_NET any -> $EXTERNAL_NET any (
    msg:"ET MALWARE MAGICHOUND.FETCH CnC Beacon";
    flow:established,to_server;
    http.method;
    content:"GET";
    http.uri;
    content:".aspx?n="; fast_pattern;
    content:"&m="; distance:0;
    content:"&i="; distance:0;
    http.header_names;
    content:!"Referer|0d 0a|";
    content:!"Cookie|0d 0a|";
    reference:md5,ed9e14a932b28f1ebdc4cd5b549af9da;
    reference:url,researchcenter.paloaltonetworks.com/2017/02/unit42-magic-hound-campaign-attacks-saudi-targets/;
    classtype:command-and-control;
    sid:2023951; rev:5;
    metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, created_at 2017_02_16, deployment Perimeter, malware_family MAGICHOUND_related, confidence High, signature_severity Major, tag c2, updated_at 2020_11_04, mitre_tactic_id TA0010, mitre_tactic_name Exfiltration, mitre_technique_id T1041, mitre_technique_name Exfiltration_Over_C2_Channel;
)