PilferShush Jammer APK

Version 4.6.2 - cityfreqs.com.pilfershushjammer
cityfreqs,pilfershushjammer,tools,pilfershush,jammer

Block unwanted use of microphone by tracking apps

PilferShush Jammer apk

APP Information

Download Version 4.6.2 (43)
Apk Size3.51 MB
App DeveloperCityfreqs
Malware CheckTRUSTED
Install on Android5.0 and up
App Packagecityfreqs.com.pilfershushjammer.apk
MD55caf8c0fc14d4823008676f3771ef495
Rate5
Website https://github.com/kaputnikGo/PilferShushJammer

Download PilferShush Jammer 4.6.2 APK

App Description

PilferShush Jammer is cityfreqs,pilfershushjammer,tools,pilfershush,jammer, content rating is Everyone (PEGI-3). This app is rated 5 by 1 users who are using this app. To know more about the company/developer, visit Cityfreqs website who developed it. cityfreqs.com.pilfershushjammer.apk apps can be downloaded and installed on Android 5.0 and higher Android devices. The Latest Version of 4.6.2 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 613+ times on store. You can also download cityfreqs.com.pilfershushjammer APK and run it with the popular Android Emulators.

PilferShush Jammer blocks other apps attempting to utilise the microphone without your knowledge. Some apps use hidden processes to record tracking audio in the background that is either generated by nearby beacons, television commercials, streamed music services or websites. This tracking audio is transmitted between 18 kHz and 22 kHz (near ultra high frequency) which is beyond the range of typical human hearing but within the recording range of a typical Android phone.
To block unwanted use of the microphone by hidden app processes, PilferShush Jammer requests use of the hardware microphone from the Android system and holds it. This technique locks up the microphone from any other apps attempting to gain access to it. This technique has been tested only on user apps, not system apps. The Android system should halt PilferShush Jammer from blocking the microphone whenever a phone call is received or made.
When the jamming technique is running and the microphone is locked up, PilferShush Jammer posts a notification to keep the user informed that it is running. Tests have shown that it uses 0% CPU, 0% network and 43.6mb RAM when running for over an hour.
This is an experimental app made as part of research into audio counter-surveillance methods within the Android and IoT world.
It requires RECORD_AUDIO permission so that it may access and lock up the microphone.
It does NOT record or listen to any audio. 
It does NOT connect to the internet.
Version 2.0 Active Jammer addition:
Tones can be emitted with a carrier frequency and a drift limit with rate all constrained to NUHF  of 18 kHz to 24 kHz depending on the device capabilities. For instance 20000 Hz carrier, drift limit 1000 Hz and rate slow - will output random frequency between 19 kHz and 21 kHz approximately every second.
Version 3.0 Jammers run as a service:
Both the active and passive jammers now run as a (foreground) service that should accurately indicate whether they are running or not. This is dependent on both the Android OS (power management) and any App Managers that may destroy running services. 
As this app seeks to block microphone use it is important to NOT dismiss or hide the notification otherwise you may forget it is running.
Also includes a scanner to check user installed apps for NUHF and Audio Content Recognition (ACR) SDKs as well as any services or receivers.
Version 4.0 Redesign
Major overhaul of the design to make information clearer and to simplify typical uses of the app
Android 10 (Q) concurrent audio update: audio capture policy that means other recording apps can bump a prior recording audio app from the microphone.
(see https://source.android.com/compatibility/android-cdd#5_4_5_concurrent_capture )
 If another user app tries to take over the microphone from PilferShush Jammer, the latest build (4.4.1) will try to restart a running passive jammer service automatically so that it complies with "the one that started capture the most recently receives audio" (quote from Android API docs). Apps that try to record audio but do not have access to the microphone will be given zeroed audio data (silence) by the system even though they may still appear to be recording audio. 
Notes:
White noise output may not be very effective at blocking and is a somewhat annoying sound. 
The speaker output may not have enough amplitude to block unwanted NUHF signals - testing will determine.
Active Jammer code rewrite for version 4.5.0
Source code is available here: https://github.com/kaputnikGo/PilferShushJammer
Research and Project webpage : https://www.cityfreqs.com.au/pilfer.php 

App ChangeLog

  • * dupe/move fdroid metadata en-AU to en-US
  • * fixes for TR translation
  • * bugfix for Android 12 notification changes causing crashes
  • * versionCode 43

App Screens

PilferShush Jammer App Screen 1PilferShush Jammer App Screen 2PilferShush Jammer App Screen 3PilferShush Jammer App Screen 4

cityfreqs-com-pilfershushjammer-43-62645390-5caf8c0fc14d4823008676f3771ef495.apk
Name:base.apk
Name:b44f270d9fe0d4144bb7e33538d374ca29b835c9.apk

Apk scan results


Apk Scaned By TotalVirus Antivirus,cityfreqs.com.pilfershushjammer.apk Was Pure And Safe.

Scan Stats:harmless:0|type-unsupported:9|suspicious:0|confirmed-timeout:0|timeout:10|failure:0|malicious:0|undetected:57|
Name:cityfreqs-com-pilfershushjammer-43-62645390-5caf8c0fc14d4823008676f3771ef495.apk
Name:base.apk
Name:b44f270d9fe0d4144bb7e33538d374ca29b835c9.apk SHA-1:b44f270d9fe0d4144bb7e33538d374ca29b835c9 SHA-256:6152427b8582c062dc27174c3c128b8807aae788419111ee270cc226244d5f9d SSDEEP:49152:M9mBBGcAvVn8sWDzzNbztyw5ZVkVyrAs2B2B0OJ7vFd6/gWmW2qrlkxh:MkB4xuzzNYwjV0T2B0S71W2qrlmh File type:Android Magic:Zip archive data, at least v2.0 to extract File size:3676308 Uncompressed Size:6868891 Contained Files :769 Contained Files By Type:xml:532,dex:1,MF:1,RSA:1,txt:1,SF:1,png:189,

Older Versions

More Android Apps to Consider

Google Play Reviews

  1. Robin Covey-avatar

    Robin Covey

    Why does passive keep shutting off as soon as i turn it on. I will give a true star rating later, but I need to fully understand how this works and if it's doing what I hope I think it's supposed to do. Please help me with another issue,. Someone is targeting me with ultrasonic and or infrasonic frequency (i do NOT know what frequency) how can I get to stop, i don't know who they are. Only that they are lowlife with nothing better to do. Can't catch them.

  2. Chris Dheilly-avatar

    Chris Dheilly

    Will there be a camera block ap shortly, also would be cool if it would show our kb data to see if our phone is leaking info. GPS blocking be cool too. 😎

  3. Sgt. Scott-avatar

    Sgt. Scott

    This app is great for privacy but can effect your pets. It states it's a research app and it's very important research that's being done. I'm waiting to find out a little more about the project as a whole because I believe this could be extremely important research. It appears to work really well so far, if nothing else it will give you a list of bad apps that use NUHF to listen in on group conversations. My only concern is the effect it could potentially pose to animals but they'll tell you.

  4. Port Locks-avatar

    Port Locks

    Does what it says on the tin and more. You can choose white noise or tone generation; passively engage the mic, preventing other apps or processes from accessing it; and look for malicious apps trying to surveil you. The only permission it asks for is to access the microphone. So far, so excellent.

  5. Michelle Allen-avatar

    Michelle Allen

    if your peeps have made you feel as though you are actually cracking up because YOU -- KNOW-- that things have been altered in your phone ... This is the app you need to once and for all show all of them in writing or rather typeprint.. every single listener and remote shared to local devices like your camera. yep your camera

  6. Linda Wati-avatar

    Linda Wati

    This is really a super amazing app, thank you so much for the developer. I'd love to give more stars, but someone who hacking my phone sometimes successfully remotely turn off this app. Would you please fix this? Thank you!

  7. Viktor Dickinson-avatar

    Viktor Dickinson

    Good app with a purpose, but recently (for the past two months or so) turning on the passive jammer has turned my phone's audio output into a jumbled and broken mess. same with my friend's phone.

  8. Gari Crewsen-avatar

    Gari Crewsen

    Update: you devs went above and beyond my requests from 18 months ago. Any way, the amount and depth of info PSJ provides about each phone app is fantastic. Self check adds credibility! And thank you for the prompt reply regarding what other uses I assumed PSJ would be used for & setting me straight. Many devs don't take the time to educate uses off their apps & it's much appreciated 😁‼️

  9. Mashea Sommers-avatar

    Mashea Sommers

    How come after a short while it shows two microphones active? Is that indication that someone is listening in? Also... What exactly does it mean when it says passive service found, and active service found? Thank you

  10. united worldpress-avatar

    united worldpress

    The plisher slush is good but can be encyption can be broken easlily and the app is self is able to be attack it self look at the pokemon go breach also you have to continue changing the volume and there no line to line security which there could be this which would be great so the the line is really secure also there a issue with the input output can be attack so that the user hear it and the attacker does not i was orginal not heating then after i had help programing it block third party nifty