Remove WindowsUpdate.exe Gaming Trojan

Ventsislav Krastev

Ventsislav has been covering the latest malware, software and newest tech developments at SensorsTechForum for 3 years now. He started out as a network administrator. Having graduated Marketing as well, Ventsislav also has passion for discovery of new shifts and innovations in cybersecurity that become game changers. After studying Value Chain Management and then Network Administration, he found his passion within cybersecrurity and is a strong believer in basic education of every user towards online safety.

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A new trojan has surfaced, named Infostealer.Predet by Symantec researchers. The trojan modifies registry entries, logs keystrokes directly steals all types of important information from user PCs and even spreads to removable drives. But most importantly the trojan masks itself as WindowsUpdate.exe executable so that it runs on system start up. Users should be extremely careful since this is a very popular gaming malware that also steals Steam and Minecraft credentials as well as email passwords and is also reported to spread via games.

WindowsUpdate.exe Gaming Trojan – How Did I Get It?

One way that this trojan may use to distribute itself is by utilising spam bots on gaming engines such as Steam which is widely used by PC games. The trojan is distributed mainly in Windows 7, Windows Xp and Vista computers.

Steam users may witness unfamiliar users adding them and promising them free game giveaways, as a part of a Black Friday or Christmas promotions. The message may feature a web link to the ‘giveaway’ which is actually the malicious link inserting the payload of the trojan.

Another way this trojan may use is via spam or spoof mails pretending to be from a website the user is registered in. Usually cybercriminals tend to collect user information via cookies or using other methods before actually infecting the computer itself.

Windows Update.exe Gaming Trojan – What Does It Do?

Symantec researchers report that once the trojan has been executed it modifies the following object:

→%System%\drivers\etc\hosts

It then creates a registry entry for the process WindowsUpdate.exe which is it`s payload to run every time the computer starts up. The registry key and its value is:

→“HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run\Windows Update = “%AppData%\WindowsUpdate.exe”

This trojan then could try to run as Administrator on the computer.

Once done that, it starts deleting files:

→%AppData%:
WindowsUpdate.exe
pid.txt
pidloc.txt
.minecraft\lastlogin
Roaming\jagex_cache\reg\
Roaming\jagex_cache\regPin\PCNAME Pin.jpeg
%Temp%:
SysInfo.txt
PCNAME\_wallet.dat
wallet.dat
screens\screenshotDIGIT.jpeg
EBFile.exe
BFile
External Removable Drive:
\autorun.inf
\Sys.exe

The trojan also has the ability to terminate processes and clear user data. It also can interact with Steam and delete key steam files that may cause the user to log out.

This cyber threat may also delete or stop key system processes and services.

→Command interpreter
System configuration
Windows Task Manager
Windows Registry Editor

This infostealer then begins to gather info about the infected system:

→Computer name;CPU name;Server name;OS platform;OS version;.NET version;Predator version;Predator services status: keylogger, clipboard-logger, report frequency, stealers;Local date and time;Installed language;Installed AVs;Installed;Firewalls;Internal and External IPs

After doing so, the questionable cyber threat is reported to directly steal vital user information from the computer:

→Bitcoin wallet.dat;Email credentials;Browser credentials;Downloader credentials;Internet Downloader ;Manager credentials;Minecraft credentials;Steam credentials;PIN screenshots from RuneScape and EpicBot video games.

Also, symantec report that this trojan has the ability to perform other related tasks to its sole purpose which is to steal data:

→Display fake error messages;Log all keystrokes;Download and execute files;Visit websites;Delete cookies from IE and Firefox browsers;Block certain websites;Spread to removable drives

Since the severity of this threat it is highly advisable to take special precautions when some of the symptoms outlined above are seen and to immediately change all of the passwords on your accounts from a safe PC.

Removing WindowsUpdate.exe Gaming Trojan Completely

In order to remove this nasty threat it is important to isolate it first. You can do this by entering in safe mode without networking and scanning your computer with malware removing tool like shown in the step-by-step tutorial below. However the best method of isolating the threat is to boot your computer in a live operating system and then unlock and scan the file-systems with it, however it is a more tech-savvy solution, because you need to select the right OS that has file-unlocking features.

Here is a tutorial on how to boot into a live OS to scan your PC:

https://sensorstechforum.com/forums/malware-removal-questions-and-guides/safe-way-to-scan-your-computer-and-detect-malware/

And here is a more automatic solution via booting in safe mode to remove the WindowsUpdate.exe Trojan:

1. Boot Your PC In Safe Mode to isolate and remove Infostealer.Predet

1. Boot Your PC Into Safe Mode

1. For Windows 7,XP and Vista. 2. For Windows 8, 8.1 and 10.

For Windows XP, Vista, 7 systems:

1. Remove all CDs and DVDs, and then Restart your PC from the “Start” menu.
2. Select one of the two options provided below:

– For PCs with a single operating system: Press “F8” repeatedly after the first boot screen shows up during the restart of your computer. In case the Windows logo appears on the screen, you have to repeat the same task again.

– For PCs with multiple operating systems: Òhe arrow keys will help you select the operating system you prefer to start in Safe Mode. Press “F8” just as described for a single operating system.

3. As the “Advanced Boot Options” screen appears, select the Safe Mode option you want using the arrow keys. As you make your selection, press “Enter“.

4. Log on to your computer using your administrator account

While your computer is in Safe Mode, the words “Safe Mode” will appear in all four corners of your screen.

Step 1: Open the Start Menu

Step 2: Whilst holding down Shift button, click on Power and then click on Restart.
Step 3: After reboot, the aftermentioned menu will appear. From there you should choose Troubleshoot.

Step 4: You will see the Troubleshoot menu. From this menu you can choose Advanced Options.

Step 5: After the Advanced Options menu appears, click on Startup Settings.

Step 6: Click on Restart.

Step 7: A menu will appear upon reboot. You should choose Safe Mode by pressing its corresponding number and the machine will restart.

2. Remove Infostealer.Predet with SpyHunter Anti-Malware Tool

2. Remove Infostealer.Predet with SpyHunter Anti-Malware Tool

1. Install SpyHunter to scan for and remove Infostealer.Predet.2. Scan with SpyHunter to Detect and Remove Infostealer.Predet.

Step 1:Click on the “Download” button to proceed to SpyHunter’s download page.

It is highly recommended to run a scan before purchasing the full version of the software to make sure that the current version of the malware can be detected by SpyHunter.

Step 2: Guide yourself by the download instructions provided for each browser.
Step 3: After you have installed SpyHunter, wait for it to automatically update.

Step1: After the update process has finished, click on the ‘Scan Computer Now’ button.

Step2: After SpyHunter has finished scanning your PC for any Infostealer.Predet files, click on the ‘Fix Threats’ button to remove them automatically and permanently.

Step3: Once the intrusions on your PC have been removed, it is highly recommended to restart it.

3. Remove Infostealer.Predet with Malwarebytes Anti-Malware.

3. Remove Infostealer.Predet with Malwarebytes Anti-Malware

1. Install Malwarebytes Anti-Malware to scan for and remove Infostealer.Predet. 2. Scan your PC with MalwareBytes to remove all Infostealer.Predet associated files automatically.

Step 1: Download Malwarebytes by clicking here.
Step 2: A pop-up window will appear. Click on the ‘Save File’ button. If it does not, click on the Download button and save it afterwards.


Step 3: After you have downloaded the setup, simply open it.
Step 4: The installer should appear. Click on the ‘Next’ button.

Step 5: Check the ‘I accept the agreement’ check circle if not checked if you accept it and click the ‘Next’ button once again.

Step 6: Review and click on ‘Next’ on the following 4 steps that will appear afterwards and after that click on the ‘Install’ button.

Step 7: After the installation process has completed click on the ‘Finish’ button and check the ‘Launch MalwareBytes AntiMalware’ check box.

Step 1: Launch MalwareBytes if you havent launched it after install.
Step 2: Wait for the software to update and then click on the blue ‘Scan Now’ button. If it doesnt start updating automatically, click on the blue ‘Update Now’ highlighted text.

Step 3: At this point, after clicking the ‘Scan Now’ button, the system should start scanning your PC. It may take a while but be patient – it is worth it.

Step 4: After the scan has been complete and all of the threats have been identified, click on the ‘Remove Selected’ button to detelete them permanently.

Step 5: Once the scan has completed, MalwareBytes will prompt you to restart your computer. It is recommended to save all your data you are working on before restarting.

4. Remove Infostealer.Predet with STOPZilla AntiMalware

4. Remove Infostealer.Predet with STOPZilla AntiMalware

1. Install STOPZilla Anti Malware to scan for and remove Infostealer.Predet. 2. Scan your PC with STOPZilla Anti Malware to remove all Infostealer.Predet associated files completely.

Step 1: Download STOPZilla by clicking here.
Step 2: A pop-up window will appear. Click on the ‘Save File’ button. If it does not, click on the Download button and save it afterwards.

Step 3: After you have downloaded the setup, simply open it.
Step 4: The installer should appear. Click on the ‘Next’ button.

Step 5: Check the ‘I accept the agreement’ check circle if not checked if you accept it and click the ‘Next’ button once again.

Step 6: Review and click on the ‘Install’ button.

Step 7: After the installation process has completed click on the ‘Finish’ button.

Step 1: Launch STOPZilla if you havent launched it after install.
Step 2: Wait for the software to automatically scan and then click on the ‘Repair Now’ button. If it does not scan automatically, click on the ‘Scan Now’ button.

Step 3: After the removal of all threats and associated objects, you should Restart your PC.

5. Back up your data to secure it against infections by Infostealer.Predet in the future

5. Back up your data to secure it against attacks in the future

Security engineers recommend that you back up your files immediately, preferably on an external memory carrier in order to be able to restore them. In order to protect yourself from Infostealer.Predet (For Windows Users) please follow these simple steps:

1. For Windows 7 and earlier 1. For Windows 8, 8.1 and 10 1. Enabling the Windows Defense Feature (Previous Versions)

1-Click on Windows Start Menu

2-Type Backup And Restore
3-Open it and click on Set Up Backup

4-A window will appear asking you where to set up backup. You should have a flash drive or an external hard drive. Mark it by clicking on it with your mouse then click on Next.

5-On the next window, the system will ask you what do you want to backup. Choose the ‘Let Me Choose’ option and then click on Next.

6-Click on ‘Save settings and run backup’ on the next window in order to protect your files from possible attacks by Infostealer.Predet.

1-Press Windows button + R

2-In the window type ‘filehistory’ and press Enter

3-A File History window will appear. Click on ‘Configure file history settings’

4-The configuration menu for File History will appear. Click on ‘Turn On’. After its on, click on Select Drive in order to select the backup drive. It is recommended to choose an external HDD, SSD or a USB stick whose memory capacity is corresponding to the size of the files you want to backup.

5-Select the drive then click on ‘Ok’ in order to set up file backup and protect yourself from Infostealer.Predet.

1- Press Windows button + R keys.

2- A run windows should appear. In it type ‘sysdm.cpl’ and then click on Run.

3- A System Properties windows should appear. In it choose System Protection.

5- Click on Turn on system protection and select the size on the hard disk you want to utilize for system protection.
6- Click on Ok and you should see an indication in Protection settings that the protection from Infostealer.Predet is on.

Restoring a file via Windows Defense feature:
1-Right-click on the encrypted file, then choose Properties.

2-Click on the Previous Versions tab and then mark the last version of the file.

3-Click on Apply and Ok and the file encrypted by Infostealer.Predet should be restored.

Ventsislav Krastev

Ventsislav has been covering the latest malware, software and newest tech developments at SensorsTechForum for 3 years now. He started out as a network administrator. Having graduated Marketing as well, Ventsislav also has passion for discovery of new shifts and innovations in cybersecurity that become game changers. After studying Value Chain Management and then Network Administration, he found his passion within cybersecrurity and is a strong believer in basic education of every user towards online safety.

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