[root] Pry-Fi Apk

Older Versions

Apk Infos

Version	1.21B
Rating	3.7/5, based on 6,808 votes
Size‎	72.1 KB
Requires Android	Android 4.0+ (Ice Cream Sandwich)
Author's Notes	Proof-of-Concept MAC address randomizer

About [root] Pry-Fi APK

Description

You are being watched...

Retailers, crooks, the government, and others shady individuals are tracking your movements. Even when your Wi-Fi is turned off, your phone may be broadcasting information to whomever is in range which can be used both to track repeated visits to as well as your exact movements in an area under surveillance.

It's not a big step to couple this to personal information - a retailer for example, could track your trip to the register and correlate with your payment information. Now the tracking hardware and software vendors, the store (or chain) owner, their business partners, they can now all track where you are every time you come into range of one of their systems, and fully profile who you are, what you do, your financials, and your daily patterns!

That is just one example, but there are many uses for tracking you. Make no mistake, this is happening in the real world today.

Pry-Fi

One solution is shutting off Wi-Fi completely (including the background network scanning, a setting most people don't know about), but you would lose benefits like automatically connecting to known Wi-Fi networks and improved location awareness for your apps. It also does nothing to help the situation for others.

Pry-Fi will prevent your device from announcing all the networks it knows to the outside world, but it will still allow background scanning and automatically connecting to Wi-Fi networks. While you are not connected to a Wi-Fi network, the MAC address will constantly be pseudo-randomized, following a pattern that still makes the trackers think you are a real person, but they will not encounter your MAC address again. This will slowly poison their tracking database with useless information.

When you do connect to a Wi-Fi network, unless you specify otherwise, your MAC address will also be randomized - the same MAC address will not be used the next time you connect to this or any other network.

War!

Though of course the companies involved with these trackers claim they wouldn't use the data maliciously, the possibility is there, and we all know that if something can be abused, ultimately it will be. There do not appear to be any laws against these practices yet, nor is it likely Wi-Fi will be redesigned any time soon to get rid of the information leaks.

But we can make an effort to reduce the usefulness of the tracking data for the exploiters. Pry-Fi comes with a War mode, which when enabled tries to make your Android device appear like dozens of people. Just wandering around an area under Wi-Fi location surveillance for a few minutes can ruin the tracking data for the period of your stay.

Proof of Concept

This is proof-of-concept code, and how for it will go in the future depends on interest and how well it works. It has been tested on several devices and seems to work, but it is very young still. The magic the app does to achieve its purpose is ever subject to changing Android security policies and OEM customizations, so even though it works now, there really is no saying if it will still be possible in future firmwares.

Of course you should also keep in mind that tracking can be done in many ways, and these W-Fi signals are far from the only method in use.

More...

Further details, device compatibility information, FAQ, discussion, etc is all available on XDA-Developers.com here:

http://forum.xda-developers.com/showthread.php?t=2631512

Latest updates

What's new in version 1.21B

v1.20:
- Force toolbox calls. Typical case of busybox symlinks causing unexpected failures. Probably the primary cause of people losing Wi-Fi completely
- Service receivers are now en/disabled dynamically. Saves a few CPU cycles and a bit of memory when Pry-Fi is installed but disabled.

v1.10:
- Support for multiple simultaneously known SSIDs
- Spoofing MACs *also* while connected to a network is now a seperate feature.

How to install [root] Pry-Fi APK on Android phone or tablet?

Download [root] Pry-Fi APK file from ApkClean, then follow these steps:

Update Phone Settings

• Go to your phone Settings page
• Tap Security or Applications (varies with device)
• Check the Unknown Sources box
• Confirm with OK

Go to Downloads

• Open Downloads on your device by going to My Files or Files
• Tap the APK file you downloaded (eu.chainfire.pryfi-v1.21B-ApkClean.apk)
• Tap Install when prompted, the APK file you downloaded will be installed on your device.

Older Versions

1.21B (121)	72.1 KB
1.20 (120)	71.8 KB

Questions & Answers

Q: What is an APK File?

A: Just like Windows (PC) systems use an .exe file for installing software, Android does the same. An APK file is the file format used for installing software on the Android operating system.

Q: If I install an APK from this website, will I be able to update the app from the Play Store?

A: Yes, absolutely. The Play Store installs APKs it downloads from Google's servers, and sideloading from a site like ApkClean.net goes through a very similar process, except you're the one performing the downloading and initiating the installation (sideloading).
As soon as the Play Store finds a version of the app newer than the one you've sideloaded, it will commence an update.

Q: Why ApkClean.net can guarantee APK 100% safe?

A: Whenever someone wants to download an APK file from ApkClean.net, we'll check the corresponding APK file on Google Play and allow user download it directly (of course, we'll cache it on our server). If the APK file does not exist on Google Play, we'll search it in our cache.

Q: What are Android App permissions?

A: Apps require access to certain systems within your device. When you install an application, you are notified of all of the permissions required to run that application.

Don't hesitate to contact us if you have any questions or concerns.

(*) is required

Thank you! Your message has been sent successfully!

Post

User's Reivew