Variable in STRING

[Dmitry]

Hello everyone, 

 

Could you help me - im stuck. So, there is exercise in ducky script course where you need to create 20 files with random names. I tried to make some variable:

DELAY 2000
COMMAND SPACE
DELAY 200
STRING terminal
DELAY 500
ENTER
DELAY 200
STRING cd Desktop/test
DELAY 500
VAR $COUNTER = 20
VAR $NAME = $_RANDOM_SC_LETTER + $_RANDOM_INT

WHILE ($COUNTER > 0)
    STRING touch %$NAME%
    ENTER
    DELAY 500
    $COUNTER = ($COUNTER - 1)
    VAR $NAME = $_RANDOM_SC_LETTER + $_RANDOM_INT
END_WHILE

 

 

But Actually it's not allowed to put some variable in STRING. How can I resolve that? Thank you in advance 

[dark_pyrro]

I guess you're referring to exercise 9-1

General tip; if you are entering a string then use STRINGLN instead of STRING followed by ENTER, saves some lines, especially in larger/longer payloads
There are of course occasions when STRING combined with ENTER is still valid even if using DS3.0

Initial delay might be a bit longer, it depends on how fast the target can enumerate the Ducky

From where do you get/where do you define $_RANDOM_SC_LETTER ?

Also, there will probably be an issue with assigning letters to a variable since variables can only contain integers. You most likely need to use $_RANDOM_LETTER_KEYCODE along with INJECT_VAR in that case if you want to follow that path. I would probably use another feature of DuckyScript to generate/output random letters without the need of using a variable.

Btw, the "cursor" never gets positioned in Desktop/test in the terminal since there is no ENTER following the line containing STRING cd Desktop/test

I guess that just using the touch command isn't enough since the exercise says the files should have content as well (also randomized), use the hint in the book

I would probably not have 2 lines with
VAR $NAME = $_RANDOM_SC_LETTER + $_RANDOM_INT
one should be enough in the beginning of the while loop (however, wouldn't use that line anyway)