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;)