HOMESpy Another PhoneHow to Monitor Another Phone Screen Activity and See Screenshot Remotely

How to Monitor Another Phone Screen Activity and See Screenshot Remotely

Hidden Spy App - Read SMS, Chats, Calls, GPS Remotely from Another Phone

Have you ever wanted to monitor someone's device to find out who they are chatting with, or want to know the call history of your wife/husband and view the content of deleted text messages? The mobile phone monitoring application is suitable for parents to control the internet activities of teenagers. You can monitor all the content on your child's mobile phone, so it is an excellent solution for beginners. This tool provides parents with a professional mobile phone behavior monitoring program, and provides a safe, healthy, and mobile phone environment for young people.

You can take a remote screenshot of the target phone at any time to get the phone screen, or you can record the screen video. After shooting the screen, you can view and edit pictures or videos. The content of the monitored mobile phone screen is stored as pictures, and you can view it remotely at any time. In addition, the software can also eavesdrop and record mobile phone calls, the surrounding environment, and VoIP calls on platforms such as Skype, WhatsApp, and Viber.

Remote tracking and monitoring function

  • Real-time screen recording:
    Takescreenshots and record screen videos on your mobile phone remotely. You can view the contents of the mobile phone screen at any time.
  • Call recording:
    Track and listen to language calls in real time, including incoming or outgoing calls on the target phone.
  • Tracking location:
    Users can monitor GPS location, find the current location and historical location of the phone.
  • Environmental recording:
    Remotely debug the mobile phone camera, MIC to record and listen to the surrounding environment and capture images and record videos.
  • Keylogger:
    You can remotely capture all phone passwords, sent messages, chat conversations and emails.
  • Social media spy:
    Get instant messages and application logs on the target phone remotely.
  • Browser record:
    You can remotely monitor the URL and bookmarks visited by the browser of the target device

How to install the tracking program on the target device?

You do not need to perform tedious steps to install the App on the target device, just a few simple installation steps, you can complete the download and installation. After the tracking application software is installed, the application software will secretly monitor all the information in this phone in the background, and you can view all the content at any time.

What is the purpose of remote tracking software?

  • Protect your loved ones, monitor employees, and control children's online behavior.
  • Where is your child's location now?
  • A text message sent by your child on the phone?
  • Know who they have communicated with?
  • What kind of websites have they visited?
  • What type of application are they using?

Other ways to take screenshots on mobile phones

Those who are familiar with Android should be familiar with adb. It allows developers to use this command-line tool to interact with their mobile phones. The permissions of adb are higher than ordinary mobile phone applications. Using adb tool, we can install or uninstall mobile phones. The software can back up or restore the data in the phone, take screenshots, etc.

However, in the Android system, the API interface or corresponding permissions for screenshots are not provided for general apps. So what if an application needs to implement the function of taking screenshots on mobile phones? The answer is to use adb proxy. The adb proxy is actually a native executable program developed by developers. It has the same functions and permissions as adb. Apps that want to implement screen capture use the adb proxy to access Android system resources, including data in FrameBuffer. Screenshots can be obtained from FrameBuffer. The user installation method is also very simple, download the app at the same time will get an adb proxy program, the user can use adb to install the program into the mobile phone through the computer.

The screen capture app communicates with the adb agent program in the phone through a socket. If there is a spy app in the phone, it can also communicate with the adb agent program through the same port number. In other words, if the spy app knows the port number that the screenshot app communicates with the adb proxy, then the spy app can access the screenshot of the phone without the user's knowledge.

A new privacy disclosure method was born, but how to use this vulnerability to obtain more private information more secretly? We know that mobile phone screenshots often occupy a relatively large storage space, especially if the attacker must also upload the screenshots to the server. If you don't know whether the pictures have use value, you need to upload more pictures to the server, and then the server will determine which pictures have use value. In this way, the app will consume a lot of memory and Internet traffic, which is easy to be discovered by users. On the other hand, if the image recognition function is added to the mobile phone, it will also consume a lot of CPU usage time, and it is easy to be found by users. The following method can be used to solve this problem.

  • First, create a database of commonly used screenshot apps, and one app corresponds to a socket port number. The monitoring program first uses PackageManager to list all programs in the system in the mobile phone to determine whether the mobile phone is installed with a screenshot app, and to determine the port number of the adb agent in the mobile phone according to the package name.
  • Detect whether the app to be attacked is running. The app to be attacked here mainly refers to the address book or social app, so that the user's private data can be stolen. The detection method is mainly to read the information in the /proc/[PID]/stat field , Judge whether the target app is running through the change of the running time of the cpu.
  • Determine which activity the app to be attacked is in. Since the title bar of most activities in an app is different, the title bar of the activity can be used as the identification. At this time, the screen capture function must be used, that is, read only after the screenshot. Take the pixel value of the title bar to determine which interface the app is on at this time.
  • Next, it loops to detect the input status of the mobile phone keyboard, that is, to use a screenshot to determine which button the user is clicking. Each time the user clicks a button, the app only reads the pixel value in the area, and then calculates the hash value based on the read pixel value and determines which button the user clicked. Similarly, by reading the pixel value of ↑, you can also determine whether it is a capital letter or a number. And the reading speed of five times a second exceeds the typing speed of most people, so all the actions of the user clicking the button can be read.
  • The user name or password is determined according to the letter or number sequence of the user clicking the button, thereby obtaining user privacy.

How to take a quick screenshot on Samsung phones?

  • SPen button operation:
    This
    method is basically suitable for all Samsung mobile phones, but the disadvantage is that the operation is not so flexible. The operation method is: press and hold the "HOME + power button" at the same time for about 2 seconds, when you hear the shutter button sound similar to a camera, it means that the screenshot is successful and the file is stored in the Pictures folder.
  • Combination key operation:
    The stylus SPen is a feature of the Samsung Galaxy Note series. On the interface where you need to take a screenshot, press and hold the button on the stylus, and then select "Screenshot Writing" in the fan-shaped menu. This kind of screenshot has the most powerful function. After the screenshot, you can also perform operations such as cropping and editing.
  • Home button + power button
    In the drop-down menu at the top of the phone desktop, select the icon in the upper right corner. Select "Action" in the system column. Find the palm motion column, and open "Palm Sliding Capture". Open the interface you want to take a screenshot, and if you hear a sound after sliding your palm, it means the screenshot is successful.

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