Working with RailGun

RailGun sounds like a top-notch gun spitting out bullets faster than light; however, this is not the case. RailGun allows you to make calls to a Windows API without the need to compile your own DLL.

It supports numerous Windows DLL files and eases the way for us to perform system-level tasks on the victim machine. Let's see how we can perform various tasks using RailGun, and carry out some advanced post-exploitation with it.

Interactive Ruby shell basics

RailGun requires the irb shell to be loaded into Meterpreter. Let's look at how we can jump to the irb shell from Meterpreter:

We can see in the preceding screenshot that merely typing in irb from Meterpreter allows us to drop in the Ruby-interactive...