Players often use Google "dorks" (specialized search queries) like intitle:"index of" "csgo" to locate:
Valve’s Subscriber Agreement prohibits distributing the game client outside of Steam. If an "index of" page contains csgo.exe , pak01_dir.vpk , or steam_api.dll , it is pirated software. Downloading it could result in ISP warnings or, in extreme cases, legal action. index of counter strike global offensive