TeamSpy is a cyberespionage operation targeting government agencies, businesses, and activists. The crew took advantage of the functionality of the TeamViewer application, which is used for remote control. The malware installs a version of the application on infected systems and extends its functionality. The attackers then patch it in memory to remove indications of its presence. The exact number of victims is not known, but security researchers at CrySys Lab and Kaspersky Lab believe the operation ran for almost a decade.”]