What is GusLocker ransomware? And how does it implement its attack?
GusLocker ransomware is yet another file-GusLockerypting virus discovered on October 24, 2018. This new crypto-malware is operated by attackers who control the [email protected] email account and at the time of writing still remains unknown. The instant it drops its malicious file in the system, it marks the implementation of its attack. This malicious file can be identified with the following hash:
The malicious file is placed in the following system folder:
After it drops the file, GusLocker ransomware performs a series of malicious activities in the system such as creating mutexes, modify critical Windows system files, launch or repress system processes, interfere with the Command Prompt and the Task Scheduler. In addition, it also makes adjustments in the Windows Registry so that it can automatically run on every system startup. Following all these changes, it starts the GusLockeryption using a sophisticated GusLockeryption algorithm which is currently unknown although it may use AES or RSA ciphers. GusLocker ransomware targets files with the following extensions:
After data GusLockeryption, GusLocker ransomware drops a file named “ALL YOUR FILES LOCKED!.html” which contains the following message:
YOUR PID:{custom id}
[email protected]
Email us
Write your ID at title of mail and country at body of mail and wait answer.
You have to pay some bitcoins to unlock your files!
If you try to unlock your files. you may lose access to them!
No one can guarantee you a 100% unlock except us!
How to buy bitcoin”
How does GusLocker ransomware circulate the web?
GusLocker ransomware circulates the web using several methods but it mostly uses spam emails. These emails contain a corrupted attachment that is usually disguised as legitimate emails even though they’re far from being one. They may be in the form of invoices, receipts, account retrieval forms, bank statement, and many more. To avoid cyber threats like GusLocker ransomware, you need to be more cautious in what you download online and make sure that you scan the downloaded file before you open it.
To delete GusLocker ransomware, refer to the removal guide provided below.
Step 1: Launch the Task Manager by simply tapping Ctrl + Shift + Esc keys on your keyboard.
Step 2: Under the Task Manager, go to the Processes tab and look for any suspicious-looking process which takes up most of your CPU’s resources and is most likely related to GusLocker ransomware.

Step 3: After that, close the Task Manager.
Step 4: Tap Win + R, type in appwiz.cpl and click OK or tap Enter to open Control Panel’s list of installed programs.
Step 5: Under the list of installed programs, look for GusLocker ransomware or anything similar and then uninstall it.

Step 6: Next, close Control Panel and tap Win + E keys to launch File Explorer.
Step 7: Navigate to the following locations below and look for GusLocker ransomware’s malicious components such as [random].exe, ALL YOUR FILES LOCKED!.html, and other suspicious files, then delete all of them.

  • %TEMP%
  • %WINDIR%\System32\Tasks
  • %APPDATA%\Microsoft\Windows\Templates\
  • %USERPROFILE%\Downloads
  • %USERPROFILE%\Desktop

Step 8: Close the File Explorer.
Before you proceed to the next steps below, make sure that you are tech savvy enough to the point where you know exactly how to use and navigate your computer’s Registry. Keep in mind that any changes you make will highly impact your computer. To save you the trouble and time, you can just use [product-name], this system tool is proven to be safe and excellent enough that hackers won’t be able to hack into it. But if you can manage Windows Registry well, then by all means go on to the next steps.
Step 9: Tap Win + R to open Run and then type in regedit in the field and tap enter to pull up Windows Registry.

Step 10: Navigate to the following path:

  • HKEY_CURRENT_USER\Control Panel\Desktop\
  • HKEY_USERS\.DEFAULT\Control Panel\Desktop\
  • HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\Run
  • HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run
  • HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\RunOnce
  • HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\RunOnce

 Step 11: Delete the registry keys and sub-keys created by GusLocker ransomware.
Step 12: Close the Registry Editor and empty the Recycle Bin.
Try to recover your GusLockerypted files using the Shadow Volume copies
Restoring your GusLockerypted files using Windows’ Previous Versions feature will only be effective if GusLocker ransomware hasn’t deleted the shadow copies of your files. But still, this is one of the best and free methods there is, so it’s definitely worth a shot.
To restore the GusLockerypted file, right-click on it and select Properties, a new window will pop-up, then proceed to Previous Versions. It will load the file’s previous version before it was modified. After it loads, select any of the previous versions displayed on the list like the one in the illustration below. And then click the Restore button.

Complete the removal process of GusLocker ransomware by using a trusted and reliable program like [product-name]. Refer to the following guidelines on how to use it.
Perform a full system scan using [product-code]. To do so, follow these steps:

  1. Turn on your computer. If it’s already on, you have to reboot it.
  2. After that, the BIOS screen will be displayed, but if Windows pops up instead, reboot your computer and try again. Once you’re on the BIOS screen, repeat pressing F8, by doing so the Advanced Option shows up.
    1. To navigate the Advanced Option use the arrow keys and select Safe Mode with Networking then hit
    2. Windows will now load the Safe Mode with Networking.
    3. Press and hold both R key and Windows key.

    1. If done correctly, the Windows Run Box will show up.
    2. Type in the URL address, [product-url] in the Run dialog box and then tap Enter or click OK.
    3. After that, it will download the program. Wait for the download to finish and then open the launcher to install the program.
    4. Once the installation process is completed, run [product-code] to perform a full system scan.

    1. After the scan is completed click the “Fix, Clean & Optimize Now” button.


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