alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET MOBILE_MALWARE ITW Android Post-Exploit Downloader CnC Activity"; flow:established,to_server; http.method; content:"POST"; http.uri; content:"/api2/v9/pass"; bsize:13; fast_pattern; http.content_type; content:"application/octet-stream"; bsize:24; reference:url,googleprojectzero.blogspot.com/2021/01/in-wild-series-android-post-exploitation.html; classtype:command-and-control; sid:2031525; rev:2; metadata:affected_product Android, attack_target Client_Endpoint, created_at 2021_01_14, deployment Perimeter, deployment SSLDecrypt, performance_impact Low, confidence High, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2021_01_15;)