One of the reasons why I like programming some PoCs using C# is the possibility to later run the code in Powershell. In this post we will see some basic examples and how to prepare your C# code to run it using Powershell.

Some experiments to retrieve the current username without calling whoami.exe or similar binaries, all of them using C# (and P/Invoke).

Alternative to whoami.exe or other well-known binaries to get the environment variables. It is written in C# and I guess it is stealthier because it gets the values parsing the PEB structure.

C# PoC of Guard Pages hooking. It is a type of API hooking which can be achieved from userland and does not require patching functions.

C# program to read, write and delete Extended Attributes (EAs) to “hide” malicious payloads within NTFS filesystems.

C# program to write, read, delete or list Alternate Data Streams (ADS) within NTFS.

Python script to count exact total number of stars for any Github user

GetModuleHandle implementation in C# using only the NtQueryInformationProcess API call.