Versions (5)
Version DetailsCurrent
Rev: 2 • May 25, 2011, 12:00 PMET MOBILE_MALWARE SymbOS/Yxes CnC Checkin Request 2
alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET MOBILE_MALWARE SymbOS/Yxes CnC Checkin Request 2"; flow:established,to_server; content:"/number/?PhoneType="; nocase; http_uri; reference:url,blog.fortinet.com/symbosyxes-or-downloading-customized-malware/; classtype:command-and-control; sid:2012846; rev:2; metadata:attack_target Mobile_Client, created_at 2011_05_25, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2019_07_26, mitre_tactic_id TA0010, mitre_tactic_name Exfiltration, mitre_technique_id T1041, mitre_technique_name Exfiltration_Over_C2_Channel;)
May 25, 2011, 12:00 PM
Jul 26, 2019, 12:00 PM
Sep 21, 2024, 3:00 AM
Oct 7, 2025, 9:34 PM
rules/emerging-mobile_malware.rules