On Wednesday, April 26, 2017 at 7:18:15 PM UTC+3, Tomos Davies wrote:
> In <news:odl8es$hpg$1...@news.mixmin.net>, Tomos Davies suggested:
> > By the end of this thread, we should know the answer to these questions:
> > 1. Do you know if the GSF ID is being tracked by any specific entity?
> > 2. Do you know what the easiest way to spoof the GSF ID is?
> This forum probably isn't technical enough to answer the questions, so I'll
> move the question over to the XDA web site.
>
> A quick summary though is that the GSF (Google Services Framework ) key of
> your Android device is used by some applications which "use this key to
> identify the device which is been used to purchase their services"
> http://android-drill.blogspot.com/2014/02/gsfkey.html
>
> Specifically, Google Play uses this GSF as a filing number for storing your
> device┬ profile. A device profile is an elaborate description of your
> phone / tablet, listing hardware features, software versions, language
> options and even carrier information.
> http://blog.onyxbits.de/what-exactly-is-a-gsf-id-where-do-i-get-it-from-and-why-should-i-care-2-12/
>
> Luckily it's trivial to change the GSF, where I've done so many times in
> the past few days.
>
> Changing Google Services Framework Key
> http://indianyouthrockss.blogspot.com/2014/12/changehide-your-identity-with.html
> 1. Clear data in the Andriod application manager:
> a. Application manager > select GSF > Clear data.
> b. Application manager > Google Play services > Clear data
> c. Application manager > Google account manager > Clear data
> 2. Go to accounts & sync and remove your Google accounts
> 3. Re-add your Google account or add another account
> This changes your GSF key.
>
> This is the Google Services Framework (GSF) ID description:
> http://i.cubeupload.com/3DXosy.jpg
>
> Here the GSF ID is wiped out on my Android phone:
> http://i.cubeupload.com/0E7jkU.jpg
>
> Here the GSF ID is different than the previous one:
> http://i.cubeupload.com/NRrJBY.jpg
>
> In summary, there are two important Android ids which are created during
> factory reset and which are intended to be "permanent" for the life of that
> factory reset, both being 64-bit numbers (16-digit hex strings):
> https://forum.xda-developers.com/showthread.php?t=1860405
> 1. System Device ID: Settings.Secure.ANDROID_ID <- used by the Uber app
> 2. Googls Services Framework ID: GSF Android-ID <- used by the Google Play
> app
>
> But both are trivial to change whenever you want to change them.
>
> Right now I'm working on randomizing the privacy data using Xprivacy:
> http://repo.xposed.info/module/biz.bokhorst.xprivacy
>
> Xposed Xprivacy claims to spoof the following, randomly, upon reboot, and
> by application (if desired):
> a. Serial#
> b. GPS Latitude & Longitude & Altitude
> c. MAC address
> d. IP address
> e. IMEI
> f. Phone number
> g. Android ID
> h. GSF ID
> i. Advertisement ID
> j. Carrier MCC & MNC & Country & Operator & ICC ID & GSM CID & GSM LAC
> k. Carrier subscriber ID
> l. SSID
> m. User Agent
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