[root] Pry-Fi APK

Version 1.21B - eu.chainfire.pryfi
Last updated: Tue, 11 May 2021 1:04:58 UTC

Proof-of-Concept MAC address randomizer

APP Information

Download Version 1.21B (121)
Apk Size71.93 KB
App DeveloperChainfire
Malware CheckTRUSTED
Install on Android4.0.x and up
App Packageeu.chainfire.pryfi.apk
Website http://www.chainfire.eu/

Download [root] Pry-Fi 1.21B APK

App Description

[root] Pry-Fi is chainfire,pryfi,tools,[root],pry-fi, content rating is Low Maturity (PEGI-12). This app is rated 4.11 by 9 users who are using this app. To know more about the company/developer, visit Chainfire website who developed it. eu.chainfire.pryfi.apk apps can be downloaded and installed on Android 4.0.x and higher Android devices. The Latest Version of 1.21B Available for download. Download the app using your favorite browser and click Install to install the application. Please note that we provide both basic and pure APK files and faster download speeds than APK Mirror. This app APK has been downloaded 25133+ times on store. You can also download eu.chainfire.pryfi APK and run it with the popular Android Emulators.

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 worldtoday.Pry-FiOne 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 somethingcanbe abused, ultimately itwillbe. 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 wecanmake an effort to reduce the usefulness of the tracking data for the exploiters. Pry-Fi comes with aWarmode, 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 ConceptThis 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.comshowthread.php?t=2631512 

App ChangeLog

  • 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 endisabled dynamically. Saves a few CPU cycles and a bit of memory when Pry-Fi is installed but disabled.
    - Support for multiple simultaneously known SSIDs
    - Spoofing MACs *also* while connected to a network is now a seperate feature.

App Screens

[root] Pry-Fi App Screen 1[root] Pry-Fi App Screen 2


Apk scan results

Apk Scaned By TotalVirus Antivirus,eu.chainfire.pryfi.apk Was Risky.Detected 1 From 55 Scan.
Scan Stats:failure:0|harmless:0|malicious:1|suspicious:0|timeout:0|type-unsupported:12|undetected:60|
Name:pry-fi-v1.21-beta-test.apk SHA-1:ac05f7e6c981e89030f08217a1ddafec45914629 SHA-256:4dd4ff873ceca687e0f81c91765b9b70c0273990fd5dc50fe08592d65a6a37c4 SSDEEP:1536:8NfS26RRAZvD2XcEaBjfamLBGHUS64++QCTu2:EqpRSLpEaBjfamVG0S/Py2 File type:Android Magic:Zip archive data, at least v1.0 to extract File size:73653 Uncompressed Size:144068 Contained Files :20 Contained Files By Type:MF:1,RSA:1,SF:1,dex:1,png:7,so:4,xml:4,

Older Versions

More Android Apps to Consider

Google Play Reviews

  1. Justin Case-avatar

    Justin Case

    LG G3 D855 Android 5.0 working great! Authentication issues once you leave network and come back to it. Update the app to save passwords with networks and it should work with no more Authentication errors.

  2. Topsy Kretts-avatar

    Topsy Kretts

    *.BackgroundServiceReciever was disabled by Android for some reason on my LG G3 D855 running Android 5.0 Your app now works as it should. I used an app called Disable Application to find that out.

  3. Jon Alder-avatar

    Jon Alder

    Great app, I wish developer would update for magisk and Android 10 and 20/20. Thank you for all the hard work!

  4. Agnish Roy-avatar

    Agnish Roy

    redmi 4a miui 10 official, app crashing right after starting up - repeatedly. all permissions granted.

  5. Keith Richard Horton-avatar

    Keith Richard Horton

    Works great on android 5, doesnt detect magisk superuser on android 9