Create a hidden Beacon console and pass a command+args to it for execution.

callany.cna

import aggressor.windows.BeaconConsole;
import java.awt.event.ActionEvent;

# $1 = beacon ID
# $2 = command + args to run [as if you typed it in the console]
sub beacon_input_command {
        local('$event');
        
        # we make the console a static var because each console we create subscribes to a bunch of stuff
        # and requires a manual step [normally performed by a Window close event] to clean up these things.
        # without this move... you'll have a very unhappy memory leak or performance degredation over time.
        this('$console');
        if ($console is $null) {
                $console = [new BeaconConsole: $1, getAggressorClient()];
        }

        # create a fake java.awt.event.ActionEvent object.
        $event   = [new ActionEvent: [new javax.swing.JTextField], 0, $2];

        # pass it to our console's actionPerformed method.
        [$console actionPerformed: $event];
}

# test alias to try it out...
# beacon> test shell dir c:\
alias test {
        beacon_input_command($1, substr($0, 5));
}