yesterday Flight Simulator 2020 (i got Steam Version) got updated. After starting the game KIS (2020 and 2021, newest database) found PDM:Exploit.Win32.Generic in “flightsimulator.exe”. The activity monitor flagged it as “suspicious behavior” and deleted the exe. Theres also a list of reg-entries (HKLM\System\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\FirewallRules\...) in the monitor. So maybe the way Flight Simulator corresponds with its servers made KIS think its a trojan.
I could start/play the game before the update without any issues.
Best answer by Danila T.
Problem already fixed. Please update base of our product.