yet another amsi.dll
This is an AmsiBypass.cs you can drop in any project that uses @Cn33liz AMSI dll hijacking code as documented in [1].
The produced dll is functionally the same, with a bit of binary editing to throw off Windows Defender.
For example in these two awesome projects:
[1] http://cn33liz.blogspot.com/2016/05/bypassing-amsi-using-powershell-5-dll.html