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Willy-JL edited this page Mar 28, 2023 · 3 revisions

Command syntax

BadKB app uses extended Duckyscript syntax. It is compatible with classic USB Rubber Ducky 1.0 scripts but provides some additional commands and features, such as custom USB ID, ALT+Numpad input method, SYSRQ command, and more functional keys.

Script file format

BadKB app can execute only text scrips from .txt files, no compilation is required. Both \n and \r\n line endings are supported. Empty lines are allowed. You can use spaces or tabs for line indentation.

Command set

Comment line

Just a single comment line. The interpreter will ignore all text after the REM command.

Command Parameters Notes
REM Comment text

Delay

Pause script execution by a defined time.

Command Parameters Notes
DELAY Delay value in ms Single delay
DEFAULT_DELAY Delay value in ms Add delay before every next command
DEFAULTDELAY Delay value in ms Same as DEFAULT_DELAY

Special keys

Command Notes
DOWNARROW / DOWN
LEFTARROW / LEFT
RIGHTARROW / RIGHT
UPARROW / UP
ENTER
DELETE
BACKSPACE
END
HOME
ESCAPE / ESC
INSERT
PAGEUP
PAGEDOWN
CAPSLOCK
NUMLOCK
SCROLLLOCK
PRINTSCREEN
BREAK Pause/Break key
PAUSE Pause/Break key
SPACE
TAB
MENU Context menu key
APP Same as MENU
Fx F1-F12 keys

Modifier keys

Can be combined with a special key command or a single character.

Command Notes
CONTROL / CTRL
SHIFT
ALT
WINDOWS / GUI
CTRL-ALT CTRL+ALT
CTRL-SHIFT CTRL+SHIFT
ALT-SHIFT ALT+SHIFT
ALT-GUI ALT+WIN
GUI-SHIFT WIN+SHIFT
GUI-CTRL WIN+CTRL

Key hold and release

Up to 5 keys can be hold simultaneously.

Command Parameters Notes
HOLD Special key or single character Press and hold key untill RELEASE command
RELEASE Special key or single character Release key

Wait for button press

Will wait indefinitely for a button to be pressed

Command Parameters Notes
WAIT_FOR_BUTTON_PRESS None Will wait for the user to press a button to continue script execution

String

Command Parameters Notes
STRING Text string Print text string
STRINGLN Text string Print text string and press enter after it

String delay

Delay between keypresses.

Command Parameters Notes
STRING_DELAY Delay value in ms Applied once to next appearing STRING command
STRINGDELAY Delay value in ms Same as STRING_DELAY

Repeat

Command Parameters Notes
REPEAT Number of additional repeats Repeat previous command

ALT+Numpad input

On Windows and some Linux systems, you can print characters by holding ALT key and entering its code on Numpad.

Command Parameters Notes
ALTCHAR Character code Print single character
ALTSTRING Text string Print text string using ALT+Numpad method
ALTCODE Text string Same as ALTSTRING, presents in some Duckyscript implementations

SysRq

Send SysRq command

Command Parameters Notes
SYSRQ Single character

USB device ID

You can set the custom ID of the Flipper USB HID device. ID command should be in the first line of script, it is executed before script run.

Command Parameters Notes
ID VID:PID Manufacturer:Product

Example: ID 1234:abcd Flipper Devices:Flipper Zero

VID and PID are hex codes and are mandatory. Manufacturer and Product are text strings and are optional.