If a virus has been detected, reinstalling your device is the most appropriate choice to clean everything. As OP experienced, it's possible that the antivirus really didn't detect the virus until we realized when it was connected to a crypto wallet. and the situation is just waiting for us to be careless.
Nope, reformat is the best thing to do if there's a potential that you've downloaded a virus together with an app, that's the only way to remove the virus and be sure that reuse of the computer is clean slate. Virus don't go away just because you've deleted the file that it came with because some of them install themselves somewhere that's different from the destination of the file that they've been with.
. The person who made this could have made something good but instead he have chosen evil.