Quantum Builder is a sophisticated, dark web-marketed toolkit used to generate malicious shortcut files and ISO payloads that deliver threats like the Agent Tesla RAT. It facilitates multi-stage infections, often using ZIP files to deliver .lnk files that execute PowerShell scripts designed to bypass Windows Defender. For more technical details on this threat, visit Zscaler Security Research Blog . Quantum Builder Delivers Agent Tesla RAT with New TTP

Quantumbuilder.zip May 2026

Quantum Builder is a sophisticated, dark web-marketed toolkit used to generate malicious shortcut files and ISO payloads that deliver threats like the Agent Tesla RAT. It facilitates multi-stage infections, often using ZIP files to deliver .lnk files that execute PowerShell scripts designed to bypass Windows Defender. For more technical details on this threat, visit Zscaler Security Research Blog . Quantum Builder Delivers Agent Tesla RAT with New TTP