alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET MOBILE_MALWARE Android/FlyTrap Activity (POST)"; flow:established,to_server; http.method; content:"POST"; http.uri; content:"/api/cookies"; bsize:12; fast_pattern; http.host; pcre:"/^\d{1,3}\.\d{1,3}\.\d{1,3}\.\d{1,3}$/"; http.request_body; content:"app=FBManager&type=cookie&account="; startswith; content:"&cookies="; distance:0; content:"&deleted="; http.header_names; content:!"Referer"; reference:url,blog.zimperium.com/flytrap-android-malware-compromises-thousands-of-facebook-accounts/; classtype:trojan-activity; sid:2033767; rev:1; metadata:attack_target Mobile_Client, created_at 2021_08_23, deployment Perimeter, performance_impact Low, confidence High, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2021_08_23;)