As things get crossed off the TODO list, they will be written about here.
A feature that I'm very excited to be releasing is being able to present a Read-Only Mass Storage device to a host via the USB Ninja. As usual, you can do this by adding a new line to options.txt.
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storage_ro: yes
If you set this straight away, then you just won't be able to add anything to the mass storage. The idea is that you should leave the device in read/write mode (by simply omitting a storage_ro line in options.txt) and place a payload of some kind on the drive. You can then set the read-only flag in options.txt so ensure that an AV solution present on the target cannot delete or quarantine your payload if it is detected.
You can now specify a script or executable than will be ran after the gadgets are setup and running.
This done by adding a new line to options.txt.
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post: /path/to/file
You can either pass it an absolute path as above, or a relative path from within /boot/usbninja/.
Note that you need to have the executable bit set on whatever you point to, else it will fail!
You can do this with a simple chmod as below:
$ sudo chmod +x /boot/usbninja/exec.sh
By default, the backing file used in storage mode is the one located at /lib/usbninja/storage.img. However, you can create another one, as detailed in STORAGE.img. Once done, you can specify the location of your new backing file in options.txt with the storage: line.
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storage: /home/alarm/backing_file.img