alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET MOBILE_MALWARE Android/FakeKakao checkin 2"; flow:established,to_server; http.method; content:"POST"; http.uri; content:"filter.php"; http.header_names; to_lowercase; content:!"|0d 0a|user-agent|0d 0a|"; nocase; http.request_body; content:"id="; startswith; reference:url,blog.fortinet.com/Fake-KakaoTalk-Security-Plug-in/; classtype:trojan-activity; sid:2018139; rev:6; metadata:affected_product Android, attack_target Mobile_Client, created_at 2014_02_14, deployment Perimeter, signature_severity Major, tag Android, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2024_05_02, mitre_tactic_id TA0010, mitre_tactic_name Exfiltration, mitre_technique_id T1041, mitre_technique_name Exfiltration_Over_C2_Channel;)