This particular bug is just that. A bug. It was discovered largely because of the other software involved. There is not any malware in the other software just a Debian system vulnerability to the other software whereby malware could be written to control the desktop GUI (denial of service vulnerability) If you are upadated via the Lite updater I'm sure you are fine. It was discovered precisely in the way you discovered it, loss of GUI control. The vulnerabitily was patched in less than week. It was never malware, just a potential vulnerability that allowed for the possibility of a denial of service hack.
TC
TC
All opinions expressed and all advice given by Trinidad Cruz on this forum are his responsibility alone and do not necessarily reflect the views or methods of the developers of Linux Lite. He is a citizen of the United States where it is acceptable to occasionally be uninformed and inept as long as you pay your taxes.