alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET MALWARE Win32/Mole Ransomware CnC Beacon"; flow:established,to_server; http.method; content:"POST"; http.uri; content:".php"; http.request_body; content:"guid="; depth:5; fast_pattern; content:"&ver="; distance:0; pcre:"/^guid=[^&]+?&ver=[^&]+?(?:&fc=[^\r\n]+)?$/i"; http.header_names; content:!"Referer|0d 0a|"; content:!"User-Agent|0d 0a|"; reference:url,isc.sans.edu/forums/diary/Malspam+on+20170411+pushes+yet+another+ransomware+variant/22290/; reference:md5,31c2e85ef5e4c0009e1f18794527b4ca; classtype:command-and-control; sid:2024203; rev:3; metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, created_at 2017_04_12, deployment Perimeter, malware_family Ransomware, malware_family Mole, confidence High, signature_severity Major, tag c2, updated_at 2020_08_05, mitre_tactic_id TA0010, mitre_tactic_name Exfiltration, mitre_technique_id T1041, mitre_technique_name Exfiltration_Over_C2_Channel;)