alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET MOBILE_MALWARE SymbOS/Yxes Jump.jsp CnC Checkin Message"; flow:established,to_server; content:"/Jump.jsp?Version="; http_uri; fast_pattern:only; content:"&PhoneType="; http_uri; reference:url,blog.fortinet.com/symbosyxes-goes-version-2/; classtype:command-and-control; sid:2013142; rev:4; metadata:attack_target Mobile_Client, created_at 2011_06_30, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2020_08_20, mitre_tactic_id TA0010, mitre_tactic_name Exfiltration, mitre_technique_id T1041, mitre_technique_name Exfiltration_Over_C2_Channel;)