Download Android Apps and Games
AppBrain
  • Apps
  • Apps being viewed right now Trending apps today Most popular apps All-time most downloaded apps Top rated apps
  • Intelligence ▾
    Intelligence overview → Track any Android app or your whole market
    Track & analyze
    Keyword Tracker & OptimizerTrack & improve Play rankings App Performance ReportOne-off PDF for any app StatisticsFree Android & Play market stats
    Promote your app
    Featured Apps App Links
  • Intelligence
  • Pricing
  • Dashboard
  • Sign up
  • Log in
Last updated on: 2026-06-20
Android Apps > Tools > Rotten Sys Checker
Rotten Sys Checker icon

Rotten Sys Checker

1.0.4
Ashampoo®
4.36
297 reviews
50,000+
Downloads
Free

5 Mio devices affected! Is Rotten Sys malware on your device? Check it!

Not recently updated — last update was on 2018-05-22. This app may no longer be actively maintained.
Rotten Sys Checker Screenshot 1 of 4
Rotten Sys Checker Screenshot 2 of 4
Rotten Sys Checker Screenshot 3 of 4
Rotten Sys Checker Screenshot 4 of 4

About Rotten Sys Checker

Rotten Sys Checker is a tools app developed by Ashampoo®.

How many times has Rotten Sys Checker been downloaded?

Rotten Sys Checker has been downloaded 85 thousand times. In the last 30 days, the app was downloaded 26 times.

What is the rating of Rotten Sys Checker?

Rotten Sys Checker is rated 4.36 out of 5 stars, based on 300 ratings.

Is Rotten Sys Checker free?

Rotten Sys Checker is free to download. The APK download size is 1.50 MB. The latest version available is 1.0.4. The last update was on May 22, 2018.

What are the requirements for Rotten Sys Checker?

Rotten Sys Checker requires Android 4.0+ or higher. The app has a content rating of Everyone. The app has been available on Google Play March 2018.

Description
RottenSys Checker - Quick and easy, no permissions needed!
Download, check and delete.


RottenSys - Android malware for ad-frauds

Disguised as a harmless Wi-Fi service, the hidden malware RottenSys comes pre-installed with millions of Android devices. During tests, a team from Check Point Research discovered that the service is a next-generation spyware that floods devices with ads. To achieve this, the malware requests system permissions to silently download additional components then used to display advertisements and to generate fraudulent ad-revenues.

Play it safe fast and free of charge

Ashampoo® RottenSys Checker quickly scans your device for the RottenSys malware. Based on information provided by Checkpoint Research, Ashampoo® RottenSys Checker quickly scans your device and lists all malicious software packages. The malware can then be completely removed with a simple tap.

- Download Ashampoo® RottenSys Checker from Google Play Store
- Tap to launch and tap again to run the test
- Identified threats can be removed with a simple tap

Devices likely infected within the distribution chain

Check Point Research has traced the majority of infected devices back to the distributor Tian Pai. It is therefore likely the devices were infected prior to shipment. According to present knowledge, only devices directly imported from China are affected.

That's why a wide range of different devices are affected. With over 700,000 infected devices, Honor has been hit the hardest, followed by Huawei, Xiaomi and Oppo. Even premium manufacturers like Samsung are affected, if only slightly.

Ad-spamming malware

After the successful infection, RottenSys bothers users with aggressively displayed ads on their homescreens or through pop-up windows and full-screen ads. So far, RottenSys has only acted as adware but it has the potential to become a far more serious threat. Using the DOWNLOAD_WITHOUT_NOTIFICATION permission, RottenSys can sneak newly downloaded components past all common security restrictions. RottenSys has been distributed since 2016 and became active for the first time in 2017 with lucrative results for the developers:

Check Point Research: "RottenSys is an extremely aggressive ad network. In the past 10 days alone, it popped aggressive ads 13,250,756 times (called impressions in the ad industry), and 548,822 of which were translated into ad clicks."

It is estimated the attackers earned over $115,000 with RottenSys in the last 10 days alone.

Recent changes:
- Added privacy policy to about dialog
Show more Show less

More data about Rotten Sys Checker

Price Free to download
Total downloads 85 thousand
Recent downloads 26
Rating 4.36 based on 300 ratings
Ranking Not ranked
Version 1.0.4
APK size 1.50 MB
Number of libraries 2
Designed for Android 4.0+
Suitable for Everyone
Ads Contains ads

App Performance Report

Get a detailed PDF report for Rotten Sys Checker with download trends, rating history, and key performance statistics — useful for competitive research or tracking your own app. Learn more

Get PDF Report — $29

Alternative downloads for the Rotten Sys Checker app

More popular
Anti Scan : Spyware Detector icon Anti Scan : Spyware Detector
Protectmob Security Solutions Apps
4.6
Free
10,000+
No ads
Anti Spyware Scanner icon Anti Spyware Scanner
Foxbyte Code Inc.
3.8
Free
100,000+
No ads
Anti Spy - Spyware Detector icon Anti Spy - Spyware Detector
Spyware Tools App
4.8
$6.49
500+
More popular
TB Checker - Play Integrity icon TB Checker - Play Integrity
KryPtoN Project
4.1
Free
100,000+
Systweak Anti-Malware icon Systweak Anti-Malware
SYSTWEAK SOFTWARE
4.2
Free
100,000+
No ads
F-Secure Mobile Security icon F-Secure Mobile Security
F-Secure Corporation
4.2
Free
100,000,000+
No ads
Koodous Antivirus icon Koodous Antivirus
Koodous Mobile
4.2
Free
500,000+
More popular
Combo Cleaner Antivirus icon Combo Cleaner Antivirus
RCS LT
4.2
Free
100,000+

Rotten Sys Checker compared with similar apps

Common keywords of similar apps

Rottensys Ad Checker Affected Research Ads Tap Infected Point Ashampoo Rotten Sys Service Components Play Quickly Scans Removed Simple Past Aggressive Days Devices Malware Check Device Permissions

Keywords missing from this app

App Security Protection Apps Anti Spyware Data Mobile Privacy Scan Strong Cleaner Antivirus Viruses Phone Protect Secure Threats Time Scanner Virus Malicious Personal Safe Web Real Detector Phishing Files Clean Free Hidden Remove Access Detection Spy Detect Wi Fi Storage Identity Application Suspicious Features Background

More from Ashampoo®

Droid Commander - File Manager icon Droid Commander - File Manager
Ashampoo®
4.1
Free
100,000+
Ashampoo Mobile icon Ashampoo Mobile
Ashampoo®
3.8
Free
10,000+
Droid Screenshot icon Droid Screenshot
Ashampoo®
4.0
$0.99
10,000+
Ashampoo Photo Organizer icon Ashampoo Photo Organizer
Ashampoo®
0.0
Free
5,000+
Ten Seconds - Tap Game! icon Ten Seconds - Tap Game!
Ashampoo®
0.0
Free
1,000+

Google Play Rating history and histogram

Rating history
Subscribe to see the full rating timeline

Downloads over time

Downloads over time
Subscribe to see download velocity and history

Rotten Sys Checker has been downloaded 85 thousand times. Over the past 30 days, it has been downloaded 26 times.

Changelog of Rotten Sys Checker

Show changelog

Developer information for Ashampoo®

Ashampoo®

apps@ashampoo.com

Website

Legal name:

Address:

Phone number:

Are you the developer of this app? Join us for free to see more information about your app and learn how we can help you promote and earn money with your app.
I'm the developer of this app

Share Rotten Sys Checker

Comments on Rotten Sys Checker for Android

★★★★★ KasraIDK · Apr 24, 2018
Thank you for saving people's phones. I have a Huawei device myself but thankfully my device isn't infected so im fine. I recommend EVERYONE with devices made by: Huawei, Xiaomi, GIONEE, Oppo, Samsung, and more especially Honor, to install this app. I promise you, it's worth your time!
★★★★★ Mack Drago · Aug 5, 2020
I appreciate Shampoo for providing this Malware security app. Even if my security apps can catch this destroying virus before it loads extra security is ALWAYS good to have.
★★★★★ A Google user · Oct 6, 2018
Thank you for great news and great hard work of the team who caught such malware took action and made an awesome easiest app ever in critical category! Salute Love Respect from our society to dear Developer and the whole team!!!!! Grateful to you! Wish you all the best!!! Bless!💜
★☆☆☆☆ Daniel Minnich · Dec 14, 2019
It's not working right? There's 2 virus right now on this here umx Android cell smartphone & it's not detecting it not at all? This is not good at all 😡😡😠😠! Missing it big time! Also, Amen?
★☆☆☆☆ Joey Waddell (RUNSWITHSCIZSORS) · May 27, 2022
I hate downloading an app that ends up just performing one tiny 2 second function and then be prompted to download more of their products to do another task. Maybe try this new idea called "multitasking" instead of just seeing how many apps you can push off on people.

Google Play Rankings for Rotten Sys Checker

This app is not ranked

Technologies used by Rotten Sys Checker

2 libraries
Subscribe to see full permission and library details
Anti Scan : Spyware Detector icon Anti Scan : Spyware Detector
Anti Spyware Scanner icon Anti Spyware Scanner
Anti Spy - Spyware Detector icon Anti Spy - Spyware Detector
TB Checker - Play Integrity icon TB Checker - Play Integrity
Systweak Anti-Malware icon Systweak Anti-Malware
F-Secure Mobile Security icon F-Secure Mobile Security
Koodous Antivirus icon Koodous Antivirus
Combo Cleaner Antivirus icon Combo Cleaner Antivirus

Back to top
AppBrain Intelligence premium content

Subscribe now to get full and unlimited access to AppBrain Intelligence. You'll have access to:

  • App Intelligence dashboard (performance timeline, competitor comparison, country rankings, insight cards)
  • Detailed ranking data per app
  • Full timeline per developer
  • Device market shares data per country
1 Month

$75/mo
(billed every month)

SAVE 0%
Subscribe
3 Months

$65/mo
($195 billed every 3 months)

SAVE 13%
Subscribe
1 Year

$57.50/mo
($690 billed every year)

SAVE 23%
Subscribe
Each subscription will automatically renew 3 days before the expiration date for the same time period. Subscriptions can be cancelled at any time before the renewal.

AppBrain is a directory focused on discovering great apps and games. We give statistics, rankings and search options that Google Play and the App Store don't have. All trademarks are owned by their respective owners. AppBrain doesn't offer APKs or binaries, and always lets users install the official version from Google Play or the App Store.

More apps

  • Top Android apps being viewed
  • LittleKittyEpic for Android
  • View Lucky coupons store 2020
  • AntivirusClean Pro & Security

Android Statistics

  • Android statistics
  • Google Play Developer stats
  • Trending Android Apps
  • Top popular Apps
  • Buy the best Android phone

About AppBrain

  • Contact
  • Privacy
  • Documentation
  • DMCA takedowns
  • Articles
  • Blog
  • Android App Marketing: Learn how to better market your Android app
© 2010-2026 - AppBrain