alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET MALWARE Possible APT34 TONEDEAF 2.0 User-Agent Observed"; flow:established,to_server; http.user_agent; content:"Windows|20|Phone|20|OS"; content:"|3b 20|IEMoblie|2f|9.0|29|"; endswith; fast_pattern; reference:md5,a0324fa4f2d9d2f04ea4edad41160da6; classtype:command-and-control; sid:2029384; rev:1; metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, created_at 2020_02_06, deployment Perimeter, malware_family TONEDEAF, performance_impact Low, confidence Medium, signature_severity Major, updated_at 2020_02_06;)