alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET MOBILE_MALWARE Trojan-Banker.AndroidOS.RedAlert CnC Beacon"; flow:to_server,established; http.method; content:"POST"; http.user_agent; content:"|3b 20|Android|20|"; http.request_line; content:"/gt|20|HTTP/1."; fast_pattern; http.connection; content:"keep-alive"; depth:10; endswith; http.content_type; content:"application/json"; depth:16; endswith; http.header_names; content:!"Referer|0d 0a|"; content:"|0d 0a|Connection|0d 0a|Content-Type|0d 0a|"; reference:md5,b66010a9c91b17f4d26dc973a97419ac; reference:url,info.phishlabs.com/blog/redalert2-mobile-banking-trojan-actively-updating-its-techniques; classtype:command-and-control; sid:2024765; rev:5; metadata:affected_product Android, attack_target Client_Endpoint, created_at 2017_09_25, deployment Perimeter, malware_family Android_RedAlert, confidence High, signature_severity Major, tag Android, tag c2, updated_at 2020_11_05, mitre_tactic_id TA0010, mitre_tactic_name Exfiltration, mitre_technique_id T1041, mitre_technique_name Exfiltration_Over_C2_Channel;)