alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET MOBILE_MALWARE Phenakite Audio Upload CnC"; flow:established,to_server; http.method; content:"POST"; http.accept; content:"*/*"; bsize:3; http.content_type; content:"application/json"; bsize:16; http.request_body; content:"|22|deviceName|22 3a 22|"; fast_pattern; content:"|22|name|22 3a|"; content:"|22|audio|22 3a 22|"; reference:url,about.fb.com/wp-content/uploads/2021/04/Technical-threat-report-Arid-Viper-April-2021.pdf; classtype:targeted-activity; sid:2032809; rev:2; metadata:attack_target Mobile_Client, created_at 2021_04_23, deployment Perimeter, deployment SSLDecrypt, performance_impact Low, confidence High, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2021_04_23;)