From what I can gather, this is some no-name Gmod Anticheat form Russia -- or at least a Russian person leaked it. There's 4 files: anti-bhop, anti-nospread, anti-recoil and anti-speedhack. The notes insie the anti-nospread lua include a link to straight up just some code that's been copied and pasted from the Facepunch forums: https://gmod.facepunch.com/f/gmodaddon/j...#postcednl
Some of the scripts are from this website: https://github.com/C0nw0nk/Garrys-Mod-An...run/server , just some of the sentences int he notes are changed from English to Russian.... Really LQ anticheat. You're better off either downloading the OPEN SOURCE version of this from the GitHub link above or using Cake. Don't know why people are 'leaking' open source code.
"It never hurts to keep looking for sunshine" - A. A. Milne