It's simple, some of them usually post a cheat with Injector included on the file.
Run the Injector and open csgo.
Or open csgo before you open the injector. (this is for internal cheat).
For example, this one:
https://www.mpgh.net/forum/showthread.php?t=1467467
If there's no injector included on it, then use this one:
https://www.mpgh.net/forum/showthread.php?t=1459351