Install

What is install-sshlsa.ps1

Copy ssh-lsa.dll to system32 folder.
ssh-lsa.dll hooked by Security Accounts Manager Service.
This dll for key-auth.

So, when uninstall or update this file, you have to rename this file at 1st. And you must reboot to apply new dll.

> powershell -File -

//Users/[login-user]/.ssh/authorized_keys

iterm2

It is caused by terminal & keyboard.
Iterm2 setting, \ => Send-Text \

see Event-Viewer Security -> Audit Success (Process Infomation: Process Name: xxxx\sshd.exe)