alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET MOBILE_MALWARE iOS DualToy Checkin"; flow:established,to_server; http.uri; content:"/i_info_proxy.php?cmd="; fast_pattern; content:"&data="; http.uri.raw; pcre:"/&data=(?:([A-Za-z0-9]|%2[FB]){4})*(?:([A-Za-z0-9]|%2[FB]){2}==|([A-Za-z0-9]|%2[FB]){3}=|([A-Za-z0-9]|%2[FB]){4})$/"; http.header; content:"|3b 20|iPhone|20|"; http.header_names; to_lowercase; content:!"|0d 0a|referer|0d 0a|"; reference:url,researchcenter.paloaltonetworks.com/2016/09/dualtoy-new-windows-trojan-sideloads-risky-apps-to-android-and-ios-devices/; classtype:trojan-activity; sid:2023240; rev:6; metadata:affected_product iOS, attack_target Mobile_Client, created_at 2016_09_15, deployment Perimeter, confidence High, signature_severity Major, updated_at 2024_04_28, mitre_tactic_id TA0010, mitre_tactic_name Exfiltration, mitre_technique_id T1041, mitre_technique_name Exfiltration_Over_C2_Channel;)