I'm looking for existing tools to decrypt and unpack Mercedes-Benz Truck Racing SYN files. I tried Game Extractor and Dragon UnPACKer but they don't support file decryption. The SYN files have data encryption.

mercedesbenztruckracing_syn.rar

Edited Friday at 09:34 AM5 days by mrmaller1905

I've put some info on the wiki https://rewiki.miraheze.org/wiki/Synetic_GmbH_SYN
(Everything except decryption method :D :D )

Encrypted files seems to have !SSM signature.

LZSS compressed

use script to extract content from SYN files from this game

syn_extract.py needs Python 3.6+

whole tree - walks *.SYN recursively

python syn_extract.py mercedesbenztruckracing_syn extracted

one archive; output dir defaults to "extracted" beside the input

python syn_extract.py Textures/Textures.SYN

explicit destination

python syn_extract.py Cockpit/Textures/Textures.SYN /tmp/cockpit-tex

syn_extract.py

Edited Tuesday at 11:57 PM1 day by Hazza12555

I'll need the game executable and other samples because none include encryption
Also the encryption name is MSS! and not SSM! as the game reads the signatures as little endian

Also @ikskoks your documentation regarding compressed files is wrong, they're always compressed and have no signature, only the encrypted ones have the SSM! signature

Edited 15 hours ago15 hr by NeoGT404

Just now, NeoGT404 said:

I'll need the game executable and other samples because none include encryption
Also the encryption name is MSS! and not SSM! as the game reads the signatures as little endian

Also @ikskoks your documentation regarding compressed files is wrong, they're always compressed and have no signature, only the encrypted ones have the SSM! signature

Here.

mercedezbenztruckracing_othersyns.rar mbtr_executable.rar

still no encrypted files

26 minutes ago, NeoGT404 said:

still no encrypted files

the encyption might be in the other games using the same format on @ikskoks wiki as this one doesn't have it

BreakNeck: Spine-Crushing Speed / Excessive Speed / N.I.C.E. 2

Edited 14 hours ago14 hr by Hazza12555

yeah maybe but then I don't get why @mrmaller1905 is asking about encryption

I have some encrypted ones from "Mercedes-Benz Truck Racing". Here you go:

SYN_SAMPLES.zip

1 hour ago, NeoGT404 said:

I'll need the game executable and other samples because none include encryption
Also the encryption name is MSS! and not SSM! as the game reads the signatures as little endian

Also @ikskoks your documentation regarding compressed files is wrong, they're always compressed and have no signature, only the encrypted ones have the SSM! signature

This wiki is open for edits from everyone. So feel free to add your findings at any time.

40 minutes ago, ikskoks said:

I have some encrypted ones from "Mercedes-Benz Truck Racing". Here you go:

Are these from a different version of the game or is the executable the same as the one mrmaller1905 sent?

2 hours ago, NeoGT404 said:

Are these from a different version of the game or is the executable the same as the one mrmaller1905 sent?

I don't know about his, but mine is from version 1.1.6 (polish version).

Here are the executables if you want to take a look:

Truck_Racing_EXE.rar

just checked and yeah the mercedes.exe is the exact same as his, your TruckRace.exe is an InstallShield 2000 installer which I've now added support for but I can't find anything regarding encryption, I've found the LZSS function but also didn't see anything near it