: Stop the malware from sending your data to a remote server.
: Go to your Steam API Key settings and revoke any key you don't recognize. Steamkeygenchecker.exe
If you have already executed this file, you should immediately: : Stop the malware from sending your data to a remote server
: The program may be compressed in a password-protected .zip or .rar to hide its contents from automated scanners. Steamkeygenchecker.exe
: Steam keys are cryptographically secure strings generated by Valve. There is no algorithm that a local .exe can use to "guess" or "create" valid keys.
: Use a reputable tool like the Microsoft Defender Offline scan or Malwarebytes from a clean USB drive.