alert http $EXTERNAL_NET any -> $HOME_NET any (msg:"ET MALWARE AsyncRAT Powershell Payload"; flow:established,to_client; flowbits:isset,ET.asyncrat; http.stat_code; content:"200"; http.content_len; byte_test:0,>=,300000,0,string,dec; http.response_body; content:"hex decryption wrapper"; fast_pattern; nocase; content:"payload"; nocase; distance:0; classtype:command-and-control; sid:2072096; rev:1; metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, affected_product Windows_11, affected_product Windows_8, affected_product Windows_10, attack_target Client_Endpoint, tls_state TLSDecrypt, created_at 2026_09_18, deployment Perimeter, deployment SSLDecrypt, malware_family AsyncRAT, confidence High, signature_severity Major, tag RAT, tag PowerShell, updated_at 2026_09_18, mitre_tactic_id TA0011, mitre_tactic_name Command_And_Control, mitre_technique_id T1105, mitre_technique_name Ingress_Tool_Transfer; target:dest_ip;)