[JSS Loader](https://attack.mitre.org/software/S0648) is Remote Access Trojan (RAT) with .NET and C++ variants that has been used by [FIN7](https://attack.mitre.org/groups/G0046) since at least 2020.(Citation: eSentire FIN7 July 2021)(Citation: CrowdStrike Carbon Spider August 2021)