alert http $EXTERNAL_NET any -> $HOME_NET any (msg:"ET ATTACK_RESPONSE Observed Portuguese JS Dropper Inbound"; flow:established,to_client; http.response_body; content:"WshShell|2e|SpecialFolders|28 22|Startup|22 29|"; content:"loader.bat"; distance:0; content:"caminhoCompvaro"; fast_pattern; content:"DownloadString.Invoke"; reference:md5,afd689dd0f6f8d1c5cf273729f745d28; classtype:trojan-activity; sid:2071918; rev:1; metadata:affected_product Windows_Client, attack_target Client_Endpoint, tls_state TLSDecrypt, created_at 2026_09_03, deployment Perimeter, deployment SSLDecrypt, confidence Medium, signature_severity Major, updated_at 2026_09_03, mitre_tactic_id TA0011, mitre_tactic_name Command_And_Control, mitre_technique_id T1105, mitre_technique_name Ingress_Tool_Transfer; target:dest_ip;)