WIP: Trying to unpack Razer Synapse 3 family of installers. #165
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(Post under active construction, I had to start all over again due to no prompt when closing tab in opera for github comments)
I'm trying to get to the bottom of this intrusive software that requires internet connection and login to do basics configuration with a mouse, even if it's first time only, there doesn't appear to be any "driver only" installer but while some other "tournament drivers" are out there that aren't available for download it seems but it's said to work differently but I haven't found any links to them either.
The Razer Synapse installer from the official website is not standalone, it's not even an online installer, but only a download module that downloads the online installer from the following addresses:
It is placed into a very unusual location which I hope gets cleaned up once it's done:
C:\Windows\Installer\Razer\InstallerThe RazerInstaller.exe program is then launched which is what we then see on screen, this is the online installer, so not the actual installer yet. Canceling the online installer before starting does not clean up. I will not actually try to install via the online installer tho, unless the manual way fails or doesn't work right.
It creates a configuration .xml file in the Windows User Temp folder, where most of the interesting details of the installation process are located, for all of the components of Synapse3, including download URLs for the actual installers of the component packages. The download links appear to be partially containing random generated numbers, I didn't spend time testing that, but the download links here may not work for everyone or even anyone else. The file contains details about the packages, whether or not they're required, require admin privileges, whether hidden in GUI and/or in Windows settings, install parameters like /silent, dates, names, hashes, and other settings.
There is an added Razer Cortex information but that's a separate thing and is indeed treated as a separate "product" in the XML, I'm currently just focusing on the Synapse 3 or codenamed "Emily3" stuff where the raw drivers should be.
Looks like GMS and RazerCentral are what I called the "Special Installers" which won't work with UniExtract, they use a custom Razer icon too, while some are standard 7-Zip Solid SFX archives or some other archive with the legacy looking setup icon, which is very good news, and I think I can proceed much better knowing this now.
Further research shows that this seems it may be some kind of driverless thing with the firmware on the mouse interfacting with the service software directly, I'll continue later.
Part 2:
Looks like the initial online installer creates a logfile in
C:\ProgramData\Razer\Installer\Logsin which it logs all the events such as OS detection, HW peripheral detection, it includes the output of the installer's configuration in the XML, most interestingly it notes another URL that I haven't seen before:2019-09-13 22:51:25,313 [7] DEBUG RazerInstaller [(null)] - Driver URL: http://cdn.razersynapse.com/1563258303SaPbPQZeRazer_108_0Setup_v3.4.0711.071612.exeThe logfile doesn't say what was done with it, but I never got any prompts or any indication anything was installed from it, because this URL is generated with the secondary RazerInstaller from the Windows\Installer location, not the primary downloader.
So I downloaded and let's see what we can find. WinRAR can't open it ... while 7-Zip Can open it, I accidentially executed it but it just extracted everything into
Program Files x86including the included installers inside, there's appears to be some raw drivers in there indeed, proper sys and inf files, including what appears to be a minimal version of Synapse3 108_0 GUI, at least it looks like it.Drivers are indeed for the type of mouse I have including a RzCommon driver. So I'll go and try to manually put these things in and see what happens.
Okay seems like raw drivers worked just fine, the proper device info shows up, what appears part of the GUI doesn't seem operational as there is no EXE or maybe something I'm missing, infact most of what this installer does is just extracts, the Windows OS doesn't really know anything's installed tho apart from the drivers.
The Synapse3Dependencies is actually recognized by WINRAR properly, UniExtract and 7-Zip can't open up the whole file, it only sees one folder $PLUGINS while there's a LOT more files in it that WinRAR seems to be able to open, but it reports it as a 7Zip SFX. However WINRAR does not see the stuff that 7-Zip can, but I determined there is nothing needed for me in here as I already have all of these NET packages, patches and updates for Win10.
One interesting thing I saw in the UniExtract2 logs is this line, when trying to unpack the component installers:
2019-09-13 23:20:54:814 Executing: C:\Windows\system32\cmd.exe /d /c C:\Program Files Manual\UniExtract\bin\ttarchext.exe
2019-09-13 23:20:54:849 'C:\Program' is not recognized as an internal or external command,
operable program or batch file.
Which means it can't support installation paths with spaces, probably a bug.
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