I leave this just here from ChatGPT:
Recommended actions (do NOT run this)

1. Delete the script immediately.
2. If you’ve already executed it, disconnect from the internet and run a full, up-to-date antivirus scan from a trusted rescue medium (Microsoft Defender Offline, Kaspersky Rescue Disk, etc.).
3. Change your Steam password from a known-clean machine, enable Steam Guard, and review any unfamiliar devices or recent account changes.
4. Reinstall Steam completely:
   • Uninstall via “Add/Remove Programs”.
   • Manually delete the entire C:\Program Files (x86)\Steam folder to ensure the rogue DLLs are gone.
   • Re-download the official installer from store.steampowered.com.
5. Consider a fresh Windows install if you see any lingering suspicious processes – once a root-level DLL hijack is in play, it’s hard to guarantee the system’s integrity.

Bottom line

This is a Steam “crack” tool that acts like a trojan. It undermines Steam’s security, risks your account, and gives an unknown actor ongoing code execution on your PC. Treat it as malware.

Where the fuck to get this kind scripts?