alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET MOBILE_MALWARE Android/Koler.C Checkin"; flow:established,to_server; http.uri; content:".php?v="; content:"&brok="; fast_pattern; content:"&u="; content:"&id="; pcre:"/&id=\d{15}$/"; http.header_names; to_lowercase; content:!"|0d 0a|referer|0d 0a|"; reference:md5,6ae7b0d04e2fd64a50703910d0eff9cc; classtype:trojan-activity; sid:2019510; rev:10; metadata:affected_product Android, attack_target Mobile_Client, created_at 2014_10_27, deployment Perimeter, signature_severity Major, tag Android, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2024_04_28, mitre_tactic_id TA0010, mitre_tactic_name Exfiltration, mitre_technique_id T1041, mitre_technique_name Exfiltration_Over_C2_Channel;)