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What is Hermes837 ransomware? And how does it execute its attack?

Hermes837 Ransomware

Hermes837 ransomware is a new file-encrypting virus that uses a “.hermes837” extension in marking the files it encrypts, hence the name. Its first activity was spotted between the end of August 2019 and the first half of September 2019. It isn’t clear yet what type of encryption algorithm it uses but one thing’s for sure, it uses a sophisticated cipher since you wouldn’t be able to access affected files once Hermes837 ransomware encrypts them.

Once it is able to infect a computer, Hermes837 ransomware, its payload file will be executed in the system. After dropping its malicious payload, this crypto-malware connects the infected computer to a remote server where it downloads more malicious files and places them on system folders. It then applies a data gathering module used to gather data about the user and the computer. The malicious files that were downloaded earlier along with the data obtained are used for another module called stealth protection.

This allows Hermes837 ransomware to execute its attack without detection from any security or antivirus programs installed in the system. It also modifies some registry keys and entries in the Windows Registry such as:

  • 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

Once all the modifications are carried out, Hermes837 ransomware will begin encrypting its targeted files. As it starts data encryption, it uses a sophisticated encryption algorithm and appends the “.hermes837” extension to every affected file. After the completion of data encryption, it opens a text file named “!!!READ_ME!!!.txt” which contains the following message:

“ALL YOUR DATA WAS ENCRYPTED
Whats Happen?
Your files are encrypted, and currently unavailable. You can check it- all files on your computer have extension .hermes
By the way, everything is possible to restore, but you need to follow our instructions. Otherwise, you cant return your data (NEVER).
What guarantees?
It’s just a business. We absolutely do not care about you and your deals, except getting benefits.
If we do not do our work and liabilities – nobody will cooperate with us.
It’s not in our interests.
If you will not cooperate with our service – for us, it does not matter. But you will lose your time and data, cause just we have the private key.
In practice – time is much more valuable than money.
What should you include in your message?
1. Your country and city
2. This TXT file
3. Some files for free decryption
Free decryption as a guarantee!
Before paying you to send us up to 2 files for free decryption.
Send pictures, text files. (files no more than 1MB)
If you upload the database, your price will be doubled
Email: [email protected]
ID: cee02c6d926f2f7d8a63ad06e2dc9a6257082b37 ***”

How does Hermes837 ransomware spread over the web?

Hermes837 ransomware proliferates using spam emails with malicious attachments. The malicious attachment usually poses as if it’s some kind of a legitimate file such as invoices, receipts, banking statements, order confirmation, and many more. This is why you must be aware of such tricks to avoid dangerous threats like Hermes837 ransomware.

To effectively kill Hermes837 ransomware from your PC, make sure to follow the removal instructions below.

Step_1: First, restart your computer in Safe Mode with Networking mode. After it has restarted, you have to stop the malicious process of Hermes837 ransomware by opening the Task Manager. To do that, simply tap Ctrl + Shift + Esc keys on your keyboard.

Step_2: Under the Task Manager, switch to the Processes tab and find any suspicious-looking process that takes up most of your CPU’s resources and is most likely related to Hermes837 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 Programs and Features under Control Panel.

Step_5: Under the list of installed programs, look for Hermes837 ransomware or anything similar, and then uninstall it.

Step_6: Next, close the Control Panel and tap Win + E keys to launch File Explorer.

Step_7: Navigate to the following locations below and look for Hermes837 ransomware’s malicious components such as “!!!READ_ME!!!.txt” and “[random].exe”, as well as 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 trouble and time, you can just use Restoro, 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 Hermes837 ransomware.

Step_12: Close the Registry Editor and empty the Recycle Bin.

Try to recover your encrypted files using the Shadow Volume copies

Restoring your encrypted files using Windows Previous Versions feature will only be effective if Hermes837 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 encrypted 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.

Congratulations, you have just removed Hermes837 Ransomware in Windows 10 all by yourself. If you would like to read more helpful articles and tips about various software and hardware visit fixmypcfree.com daily.

Now that’s how you remove Hermes837 Ransomware in Windows 10 on a computer. On the other hand, if your computer is going through some system-related issues that have to get fixed, there is a one-click solution known as Restoro you could check out to resolve them.

This program is a useful tool that could repair corrupted registries and optimize your PC’s overall performance. Aside from that, it also cleans out your computer for any junk or corrupted files that help you eliminate any unwanted files from your system. This is basically a solution that’s within your grasp with just a click. It’s easy to use as it is user-friendly. For a complete set of instructions in downloading and using it, refer to the steps below

Perform a full system scan using Restoro. To do so, follow the instructions below.

  1. Download and install Restoro from the official site.
  2. Once the installation process is completed, run Restoro to perform a full system scan.
    restoro laptop1
  3. After the scan is completed click the “Start Repair” button.
    restoro laptop2
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