alert http $EXTERNAL_NET any -> $HOME_NET any (msg:"ET ATTACK_RESPONSE JScriptToPowerShell Obfuscator Payload Inbound"; flow:established,to_client; http.response_body; content:"|23 20|Close|20 2a 2e|bat|2e|exe|20|processes"; content:"|23 20|Remove|20|specific|20|file|20|types|20|from|20|directories"; content:"Get|2d|ChildItem|20 2d|Path|20 24 5f 20 2d|Include|20 2a 2e|bat|2c 20 2a 2e|ps1|2c 20 2a 2e|lnk|2c 20 2a 2e|cmd|2c 20 2a 2e|vbs|20 2d|Recurse|20 2d|ErrorAction|20|SilentlyContinue"; fast_pattern; content:"|23 20|Remove|20 2e|vbs|20|files"; reference:url,gist.github.com/andrew-petrus/05068fb8673040b21a3a6701df248570; classtype:trojan-activity; sid:2066483; rev:1; metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, tls_state TLSDecrypt, created_at 2025_12_26, deployment Perimeter, deployment SSLDecrypt, confidence High, signature_severity Major, updated_at 2025_12_26, mitre_tactic_id TA0011, mitre_tactic_name Command_And_Control, mitre_technique_id T1105, mitre_technique_name Ingress_Tool_Transfer; target:dest_ip;)