Remcos RAT 1.7 has many good features right now. You can use it as an ASYNC RAT.NET, but this one is powerful, stable, and lightweight with this Native RAT.
like Mass or Auto Task working so well.

also in special options. custom add or not into your client exe
also offline keylogger
The Biggest Remcos RAT was working longer, as seen from
Tuesday, January 24th, 2012, or 11 years, has seen a very long project in history, RAT, and they just service only Remote Control and Surveillance Software that is not used for blackhat or hacking into anyone without permission. If you violate the terms of service of Remcos RAT, they will ban you forever with your license.