alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET MOBILE_MALWARE AndroidOS.Simplocker Checkin"; flow:established,to_server; urilen:5; http.method; content:"POST"; http.uri; content:"/1/?1"; fast_pattern; http.request_body; content:"{|22|n|22 3a 22|"; startswith; content:"|22 2c 22|d|22 3a 22|"; distance:0; http.header_names; to_lowercase; content:!"|0d 0a|accept"; content:!"|0d 0a|referer|0d 0a|"; reference:url,welivesecurity.com/2014/07/22/androidsimplocker/; reference:md5,b98cac8f1ce9284f9882ba007878caf1; classtype:trojan-activity; sid:2018781; rev:7; metadata:affected_product Android, attack_target Mobile_Client, created_at 2014_07_25, deployment Perimeter, signature_severity Major, tag Android, updated_at 2024_05_01, mitre_tactic_id TA0010, mitre_tactic_name Exfiltration, mitre_technique_id T1041, mitre_technique_name Exfiltration_Over_C2_Channel;)