alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET MOBILE_MALWARE YiSpecter Activity M2"; flow:established,to_server; http.method; content:"GET"; http.uri; content:"/itms-services|3a|"; http.host; content:"bb800.com"; fast_pattern; endswith; reference:url,researchcenter.paloaltonetworks.com/2015/10/yispecter-first-ios-malware-attacks-non-jailbroken-ios-devices-by-abusing-private-apis/; classtype:trojan-activity; sid:2021901; rev:6; metadata:created_at 2015_10_05, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2024_03_25;)