Branding / .dpk files - is it possible to "unpack" one to see the contents?

RouterOS General
1

Wasn’t sure if this belonged in General or the scripting/API section (since it’s related to “branding” and automated setup). Feel free to move it!

I have inherited someone else’s setup using netinstall and then GenieACS/TR-069 to provision and then manage devices. There are TR-069 commands to update ROS on devices (hAP AX2&3) along with a .dpk / “branding” package, and then reboot the device.

Is there any way I can “extract” the branding package / dpk file on a computer to see what it does, or so I can make a new version of it? Or do I need to have the original source files that generated the dpk in order to make a new one?

2

Npk's are squashfs images that can be decompressed with 7zip.

No idea if branding is the same, but worth a try...

1 Like
3

Awesome, I tried running it through file and it just told me it was “data,” I wouldn’t have thought it was something 7z could handle. :smiley:

WARNINGS:
There are data after the end of archive
--
Path = [redacted].dpk
Type = SquashFS
WARNINGS:
There are data after the end of archive
Offset = 65536
Physical Size = 24576
Tail Size = 81
Headers Size = 4596
File System = SquashFS 4.0
Method = XZ
Cluster Size = 262144
Big-endian = -
Created = 2025-06-05 11:59:40
Characteristics = DUPLICATES_REMOVED EXPORTABLE NO_XATTRS
Code Page = UTF-8

Everything is Ok

Archives with Warnings: 1
Warnings: 1
Folders: 14
Files: 19
Size:       98949
Compressed: 90193

I’m a little concerned about the warning, but I’m seeing files that make sense to me, so i’m way better off than before. Thanks!

4

They are signed by Mikrotik, and the additional data is that signature.

5

binwalk is also a great way to analyze and extract random data blobs.

You can ask binwalk to extract everything it can find in a blob like so:

binwalk -eM branding-file.dpk