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66 votes
Accepted

What is this lock screen with ads and how do I remove it?

This lockscreen replacement is caused by an ad from DU Quick Charge I am pretty sure that this lockscreen was added to the app "ES App Locker". Many User-Revievs are stating that this app ...
benjamin's user avatar
  • 1,821
30 votes

Suspected malware on stock apps in a Mediatek mtk65* based phone

I am sorry but you totally misinterpret the scanner results. In both cases one of 61 scanners has detected something - that looks more like a false-positive. Additionally the scanners that detected ...
Robert's user avatar
  • 20.5k
29 votes
Accepted

How to find out which app is trying to open spam websites?

Based on the troubleshooting OP did following my advices, the culprit appeared to be a system app as a malware named System Locker with package name com.tihomobi.lockframe.syslocker. The issue appears ...
Firelord's user avatar
  • 25.2k
28 votes

Why are Zygote and Whatsapp asking for root?

It is unlikely for WhatsApp to need root privileges, and impossible for zygote to ask for it. Zygote is an essential system component that is started by init process itself while booting, so it does ...
EHH's user avatar
  • 431
25 votes

Is it a good idea to force stop apps after using them?

TL;DR: No, it's not a good or advisable idea. Explanation and some background: Force-stopping apps is not intended for "routine use", but for "emergency purposes" (eg. if an app runs out of control ...
Izzy's user avatar
  • 91.2k
15 votes

What is this lock screen with ads and how do I remove it?

For people like me who hate ES Explorer doing this but can't move away from it right now(because of its loads of features!): We can disable this unnecessary feature: Go to Es Explorer Tools and ...
mangatinanda's user avatar
14 votes

What is this lock screen with ads and how do I remove it?

A Reddit user has started to collect together the apps that have included this 'feature'/adware. The list currently contains: Xender ES File explorer (by ES Global) Removed ES App Locker (by ES ...
bmdixon's user avatar
  • 8,825
12 votes

What is this lock screen with ads and how do I remove it?

It seems ES File Explorer does this now - I have had it installed for years, but today I saw DU Quick Charge pop up and it seems to be tied with an update of ES File Explorer. I uninstalled it and the ...
JBCP's user avatar
  • 221
11 votes

How can Phones such as Oppo be vulnerable to Privilege escalation exploits

A locked bootloader and non-existent fastboot and most important Android Verified Boot (vnmeta), which cryptographically verifies the content of the system partition, make it extreme hard to root the ...
Robert's user avatar
  • 20.5k
9 votes

Toast message with Chinese characters, is it a virus?

Based on the information given, it's indeed caused by the latest update (9 July 2016) of ES File Explorer. From some of recent reviews, This new version has a new issues, whenever I open the ES file ...
Andrew T.'s user avatar
  • 16.2k
8 votes
Accepted

Remove ransomware-like malware

I will start this with the most funniest thing the malware developer did. The developer who created this malware with label Android 6.0 Marshmallow, version 6.0(6) and package name com.xtrlee.fiehan, ...
Firelord's user avatar
  • 25.2k
7 votes
Accepted

Apps trying to install in background

Every now and then (and it's getting more and more frequently), I get a notification that some app tried to install itself (!) but was blocked because it's from "unknown sources", and it's prompting ...
Firelord's user avatar
  • 25.2k
7 votes

How to find app based on package name?

The question was asked back in 2012 but given that no Android version constraint is given I would like to suggest a solution, which as of now is helpful for Android 5.0 and above. Install App Manager ...
Firelord's user avatar
  • 25.2k
7 votes
Accepted

How does "virus been detected" on android pop up on chrome when visiting some sites?

In short: Nothing to worry about, unless you have downloaded an app suggested by the pop-up. In More detail: It's an old issue. You visit a normal website, and suddenly you see pop-ups telling you ...
aBochur's user avatar
  • 2,539
7 votes

Finding and removing Android adware that opens Chrome tabs when unlocking the lockscreen

Using my Google Activity History, i spotted a few activity entries of my Barcode Scanner app which didn't belong there as I didn't use the app at the time. Uninstalling the app resolved the problem. ...
tannerli's user avatar
  • 231
6 votes

What is this lock screen with ads and how do I remove it?

This is to provide additional evidence that ES Explorer is another culprit, from the family of ES apps Network Monitoring: How to Get Started and Why You Should Consider it, a post which appeared on ...
beeshyams's user avatar
  • 41.1k
6 votes

Can APK cause any harm on open (without installing)?

If the APK file was not installed this reduces the probability a lot. The only way I see that could harm a device would be if the file itself would contain an exploit against the Android MediaStore ...
Robert's user avatar
  • 20.5k
5 votes

Pros and cons of rooting using apps ("Soft Root") compared to other methods ("Hard Root")

There are a few advantages to rooting using the official process. It's officially supported on many phones. This means you can use a process that's documented by the manufacturer, and tools from an ...
Dan Hulme's user avatar
  • 35k
5 votes
Accepted

Pros and cons of rooting using apps ("Soft Root") compared to other methods ("Hard Root")

Thanks to AndrewT who posted a link on chat, having this research paper as a refernce in one of the answers. This answer is entirely based on the this paper (May 2015) and highlights common user ...
beeshyams's user avatar
  • 41.1k
5 votes

How do I get rid of two "viruses"?

Don't worry. These are fake virus scanners. They try to scare you by making you think your device is infected. If you can't exit out of them simply close the browser tab you opened them in. And if ...
jan's user avatar
  • 395
5 votes
Accepted

How to identify the app/process which re-mounts partitions R/W, creates files and changes file permissions?

Note: Following solution requires a rooted device. Kernel must be built with AUDIT_WATCH, preferably AUDIT_TREE. The only good thing Google did was to choose the flexible and configurable Linux ...
Irfan Latif's user avatar
  • 20.7k
5 votes

Does the use of Android One remove the risk of OEM spying?

You could inadvertently pass along proprietary information to a foreign government without even realizing it. This holds true when a person is using non-Chinese communication or computing devices as ...
Firelord's user avatar
  • 25.2k
4 votes

Dropbox app not installed, but there is log activity in /data/system/dropbox

As already answered, what you find in this folder are logs for events or crashes of the Android system. You could open those with a text editor and try to figure things out. All can be safely deleted, ...
Ju Tutt's user avatar
  • 514
4 votes

Can't uninstall virus plus phone keep rebooting

It sounds like malware has sneaked into your phone's system area (possibly via the "root manager" app you installed.) System area does not get touched during factory reset, which is why the apps are ...
Chahk's user avatar
  • 19.5k
4 votes

"Warning - You only have to install a Great App to get your phone fully functioned." Keeps popping up

I went through this same problem. Here is the solution: First boot to safe mode: Press the power button. A Power Off popup will show. Long press the Power Off popup. It will ask if you if you want ...
vsound's user avatar
  • 41
4 votes
Accepted

Weird package "com.google.ccc.abuse.droidguard.droidguasso"

Disclaimer This APK's code is obfuscated, hence it's difficult to ascertain its purpose. For those who have doubts concerning my analysis — and I encourage you to —, feel free to download the ...
Grimoire's user avatar
  • 2,959
4 votes

How to find out which app is trying to open spam websites?

Inspired by the Firelord answer I investigated logcat in very simple way and found the quilty immediatelly - it was Barcode Scanner by the The space team. The steps: Connected my Galaxy Note 8 to PC, ...
IgorN's user avatar
  • 41
4 votes

How to find out which app is trying to open spam websites?

So I was having this same issue and I kinda stumbled on a simple way to fix it. First thing I did is I reset all the browser defaults so if ANY application wanted to open a browser it needed to ask me ...
Maxamillion Ulysses Powers IV's user avatar
4 votes
Accepted

Is this "Boost" / File Manager app a true system app or malware?

This is a system app update from Alcatel. Recently they started updating some of their apps. I'm assuming you have an Idol 4 or 4S. Although you can't uninstall or even fully disable this app, you ...
Rick Rademaker's user avatar

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