This repository contains techniques for Antimalware Scan Interface (AMSI) bypass.

Certain techniques may have been altered or rewritten.

• Patching AMSI AmsiScanBuffer

This technique prevents the buffer from being scanned by antiviruses by patching the AmsiScanBuffer function.

Changes: Convert to in memory AMSI Bypass.

The problem was that other scripts used Add-Type. When Add-Type is used, the code is written to a temporary file and then csc.exe is used to compile a binary that stays on disk. This creates a problem when you want to remain furtive and don't want to write anything on the disk.

• AMSI-Patch.ps1

• credit
  • xpn

Released under GPL-3.0 by @xiosec.