alert http $EXTERNAL_NET any -> $HOME_NET any (msg:"ET MALWARE JanelaRAT Delivery Script Retrieving .MSI"; flow:established,to_client; http.stat_code; content:"200"; http.response_body; content:"<?xml version="; content:"|3c|script|20|language|3d 22|vbscript|22 3e|"; distance:0; content:"CreateObject"; distance:0; content:"WScript.Shell"; distance:0; content:"Scripting.FileSystemObject"; distance:0; content:".msi"; distance:0; content:"objExecutor|2e|Run|20 22|cmd|20 2f|c|20|msiexec|20 2f|i|20 22 22 22 20 26 20|strTargetFile|20 26 20 22 22 22 20 2f|qn|20 2f|passive|20 2f|norestart|22 2c 20|0|2c 20|True"; fast_pattern; distance:0; reference:url,zscaler.com/blogs/security-research/janelarat-repurposed-bx-rat-variant-targeting-latam-fintech; classtype:trojan-activity; sid:2062733; 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_06_03, deployment Perimeter, malware_family JanelaRAT, confidence High, signature_severity Major, tag RAT, updated_at 2025_06_03;)