[Grandoreiro](https://attack.mitre.org/software/S0531) is a banking trojan written in Delphi that was first observed in 2016 and uses a Malware-as-a-Service (MaaS) business model. [Grandoreiro](https://attack.mitre.org/software/S0531) has confirmed victims in Brazil, Mexico, Portugal, and Spain.(Citation: Securelist Brazilian Banking Malware July 2020)(Citation: ESET Grandoreiro April 2020)