What are .sad files? What is .sad ransomware virus? How to remove Sad Ransomware and try to restore .sad encrypted files?
A ransomware virus, called Sad Ransomware was recently detected by security researchers. The virus uses the .sad file extension which is added to the files, encrypted by the virus. The virus drops a ransom note, the aims to get victims to pay ransom to get their files back and it extorts them into paying BitCoin in 5 minutes or else threatens to delete their files forever. If your computer has been infected by Sad Computer ransomware, we advise you to read this article thoroughly.
Threat Summary
| Name | Sad Computer Ransomware |
| Type | Ransomware, Cryptovirus |
| Short Description | Encrypts your files and holds them hostage until you pay ransom to be able to use them again. |
| Symptoms | Files are encrypted and have the .sad extension added. They become no longer usable and a ransom note “Sad Computer” appears. |
| Distribution Method | Spam Emails, Email Attachments, Executable files |
| Detection Tool | See If Your System Has Been Affected by Sad Computer Ransomware Download Malware Removal Tool | User Experience | Join Our Forum to Discuss Sad Computer Ransomware. |
| Data Recovery Tool | Windows Data Recovery by Stellar Phoenix Notice! This product scans your drive sectors to recover lost files and it may not recover 100% of the encrypted files, but only few of them, depending on the situation and whether or not you have reformatted your drive. |
.sad Ransomware – How Did I Get It and What Does It Do?
The Sad Computer ransomware virus is often spread via two main ways:
- Via malicious files or web links sent to victims by e-mail.
- Via malicious files or links that are posted on suspicious or compromised websites.
Whatever the case may be, once you get tricked into downloading and running the virus files of Sad Computer ransomware, it may immediately begin encrypting your files. The virus may target the following types of files by scanning your PC for them:
- Documents.
- Videos.
- Images.
- Audio files.
- Archives.
- Database files.
- Other important data.
Once Sad Computer ransomware has encrypted your files, it ads the .sad extension to them and the files start to look like the following:
The Sad Computer ransomware then drops the following ransom note so that you can see how the extortion works:
Text from the image:
Your Files are Encrypted
What Happened to my computer?
Your Files Have Been Encrypted.Q: How Do I restore the files?
A: You needto use bitcoin to restore the files.Q: Can I use other methods?
A: Yes. You can use PayPal.Q: How can I trust?
A: We don’t cheat users. We restore the files.
In addition to this, the Sad Computer ransomware may also refrain from encrypting all files in the system folders of Windows and perform other malicious activities, like the ones below:
- Install other viruses.
- Check if it’s running on a virtual drive or if it has infected your PC before.
- Delete your backups.
- Stop the Windows Recovery Services.
- Create mutexes.
- Read and write files.
- Create files.
Remove Sad Computer Ransomware and Try to Restore .sad Files
Before starting to remove this virus, be advised that you should copy your encrypted files somewhere else or make a system image of your Windows OS to backup everything.
To remove Sad Computer ransomware, you can follow the removal steps below. They have been made with the idea to help you either manually delete the virus or use an advanced anti-malware tool to remove it automatically. If you want to remove Sad Ransomware quickly and effectively, the best method according to security professionals is to download and scan your PC with an advanced anti-malware software. Such tool aims to ensure that all of the virus files of Sad Ransomware will be gone for good and your machine remains protected against such viruses in the future as well.
To try and get your data back, you should see the alternative file recovery methods in step “Try to Restore” below. They come with no 100% guarantee to recover your files, but they are a good temporary solution for until a decryptor comes out. Until then, keep following this post as we will post an update with a decryptor when it becomes available.
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.
.
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.
.
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.
Video containing step-by-step removal and file recovery instructions for Sad Computer Ransomware:
Note! Your computer system may be affected by Sad Computer Ransomware and other threats.
Scan Your PC with SpyHunter
SpyHunter is a powerful malware removal tool designed to help users with in-depth system security analysis, detection and removal of threats such as Sad Computer Ransomware.
Keep in mind, that SpyHunter’s scanner is only for malware detection. If SpyHunter detects malware on your PC, you will need to purchase SpyHunter’s malware removal tool to remove the malware threats. Read our SpyHunter 5 review. Click on the corresponding links to check SpyHunter’s EULA, Privacy Policy and Threat Assessment Criteria.
Preparation before removing Sad Computer Ransomware.
Before starting the actual removal process, we recommend that you do the following preparation steps.
- Make sure you have these instructions always open and in front of your eyes.
- Do a backup of all of your files, even if they could be damaged. We highly recommend to back up your data with a cloud backup solution and insure your files against any type of loss, even from the most severe threats. We recommend you to read more about it and to download SOS Online Backup.
- Be patient as this could take a while.
Step 1: Boot Your PC In Safe Mode to isolate and remove Sad Computer Ransomware
Step 2: Clean any registries, created by Sad Computer Ransomware on your computer.
The usually targeted registries of Windows machines are the following:
- 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
You can access them by opening the Windows registry editor and deleting any values, created by Sad Computer Ransomware there. This can happen by following the steps underneath:
Tip: To find a virus-created value, you can right-click on it and click “Modify” to see which file it is set to run. If this is the virus file location, remove the value.Step 3: Find files created by Sad Computer Ransomware
For Windows 8, 8.1 and 10.
For Windows XP, Vista, and 7.For Newer Windows Operating Systems
1: On your keyboard press + R and write explorer.exe in the Run text box and then click on the Ok button.
2: Click on your PC from the quick access bar. This is usually an icon with a monitor and its name is either “My Computer”, “My PC” or “This PC” or whatever you have named it.
3: Navigate to the search box in the top-right of your PC’s screen and type “fileextension:” and after which type the file extension. If you are looking for malicious executables, an example may be “fileextension:exe”. After doing that, leave a space and type the file name you believe the malware has created. Here is how it may appear if your file has been found:
N.B. We recommend to wait for the green loading bar in the navination box to fill up in case the PC is looking for the file and hasn’t found it yet.
For Older Windows Operating Systems
In older Windows OS’s the conventional approach should be the effective one:
1: Click on the Start Menu icon (usually on your bottom-left) and then choose the Search preference.
2: After the search window appears, choose More Advanced Options from the search assistant box. Another way is by clicking on All Files and Folders.
3: After that type the name of the file you are looking for and click on the Search button. This might take some time after which results will appear. If you have found the malicious file, you may copy or open its location by right-clicking on it.
Now you should be able to discover any file on Windows as long as it is on your hard drive and is not concealed via special software.
Before starting the Automatic Removal, please boot back into Normal mode, in case you are currently in Safe Mode.
This will enable you to install and use SpyHunter 5 successfully.
Step 4: Scan for Sad Computer Ransomware with SpyHunter Anti-Malware Tool
Step 5: Try to Restore Files Encrypted by Sad Computer Ransomware.
Method 1: Scanning your drive’s sectors by using Data Recovery software.
Another method for restoring your files is by trying to bring back your files via data recovery software. Here are some suggestions for preferred data recovery software solutions:
Method 2: Trying Kaspersky and EmsiSoft’s decryptors.
If the first method does not work, we suggest trying to use decryptors for other ransomware viruses, in case your virus is a variant of them. The two primary developers of decryptors are Kaspersky and EmsiSoft, links to which we have provided below:
Method 3: Using Shadow Explorer
To restore your data in case you have backup set up, it is important to check for Volume Shadow Copies, if ransomware has not deleted them, in Windows using the below software:
Method 4: Finding the decryption key while the cryptovirus sends it over a network via a sniffing tool.
Another way to decrypt the files is by using a Network Sniffer to get the encryption key, while files are encrypted on your system. A Network Sniffer is a program and/or device monitoring data traveling over a network, such as its internet traffic and internet packets. If you have a sniffer set before the attack happened you might get information about the decryption key. See how-to instructions below:
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.
Video containing step-by-step removal and file recovery instructions for Sad Computer Ransomware:
Note! Your computer system may be affected by Sad Computer Ransomware and other threats.
Scan Your PC with SpyHunter
SpyHunter is a powerful malware removal tool designed to help users with in-depth system security analysis, detection and removal of threats such as Sad Computer Ransomware.
Keep in mind, that SpyHunter’s scanner is only for malware detection. If SpyHunter detects malware on your PC, you will need to purchase SpyHunter’s malware removal tool to remove the malware threats. Read our SpyHunter 5 review. Click on the corresponding links to check SpyHunter’s EULA, Privacy Policy and Threat Assessment Criteria.
Preparation before removing Sad Computer Ransomware.
Before starting the actual removal process, we recommend that you do the following preparation steps.
- Make sure you have these instructions always open and in front of your eyes.
- Do a backup of all of your files, even if they could be damaged. We highly recommend to back up your data with a cloud backup solution and insure your files against any type of loss, even from the most severe threats. We recommend you to read more about it and to download SOS Online Backup.
- Be patient as this could take a while.
Step 1: Boot Your PC In Safe Mode to isolate and remove Sad Computer Ransomware
Step 2: Clean any registries, created by Sad Computer Ransomware on your computer.
The usually targeted registries of Windows machines are the following:
- 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
You can access them by opening the Windows registry editor and deleting any values, created by Sad Computer Ransomware there. This can happen by following the steps underneath:
Tip: To find a virus-created value, you can right-click on it and click “Modify” to see which file it is set to run. If this is the virus file location, remove the value.Step 3: Find files created by Sad Computer Ransomware
For Windows 8, 8.1 and 10. For Windows XP, Vista, and 7.For Newer Windows Operating Systems
1: On your keyboard press + R and write explorer.exe in the Run text box and then click on the Ok button.
2: Click on your PC from the quick access bar. This is usually an icon with a monitor and its name is either “My Computer”, “My PC” or “This PC” or whatever you have named it.
3: Navigate to the search box in the top-right of your PC’s screen and type “fileextension:” and after which type the file extension. If you are looking for malicious executables, an example may be “fileextension:exe”. After doing that, leave a space and type the file name you believe the malware has created. Here is how it may appear if your file has been found:
N.B. We recommend to wait for the green loading bar in the navination box to fill up in case the PC is looking for the file and hasn’t found it yet.
For Older Windows Operating Systems
In older Windows OS’s the conventional approach should be the effective one:
1: Click on the Start Menu icon (usually on your bottom-left) and then choose the Search preference.
2: After the search window appears, choose More Advanced Options from the search assistant box. Another way is by clicking on All Files and Folders.
3: After that type the name of the file you are looking for and click on the Search button. This might take some time after which results will appear. If you have found the malicious file, you may copy or open its location by right-clicking on it.
Now you should be able to discover any file on Windows as long as it is on your hard drive and is not concealed via special software.
Before starting the Automatic Removal, please boot back into Normal mode, in case you are currently in Safe Mode.
This will enable you to install and use SpyHunter 5 successfully.
Step 4: Scan for Sad Computer Ransomware with SpyHunter Anti-Malware Tool
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.
Video, containing step-by-step removal instructions for Sad Computer Ransomware:
Note! Your computer system may be affected by Sad Computer Ransomware or other threats.
Scan Your PC with SpyHunter
SpyHunter is a powerful malware removal tool designed to help users with in-depth system security analysis, detection and removal of threats such as Sad Computer Ransomware.
Keep in mind, that SpyHunter’s scanner is only for malware detection. If SpyHunter detects malware on your PC, you will need to purchase SpyHunter’s malware removal tool to remove the malware threats. Read our SpyHunter 5 review. Click on the corresponding links to check SpyHunter’s EULA, Privacy Policy and Threat Assessment Criteria.
To remove Sad Computer Ransomware follow these steps:
1. Uninstall malicious programs from Windows
How to Uninstall malicious programs from Windows:
Here is a method in few easy steps that should be able to uninstall most programs. No matter if you are using Windows 10, 8, 7, Vista or XP, those steps will get the job done. Dragging the program or its folder to the recycle bin can be a very bad decision. If you do that, bits and pieces of the program are left behind, and that can lead to unstable work of your PC, errors with the file type associations and other unpleasant activities. The proper way to get a program off your computer is to Uninstall it. To do that:
Select the program that you want to remove, and press “Uninstall” (fig.3).
Follow the instructions above and you will successfully uninstall most programs.
2. Clean your Browser and Registry from Sad Computer Ransomware
Remove Sad Computer Ransomware by cleaning your Browser and Registry.
Remove an extension from Mozilla Firefox
Remove an extension from Google Chrome
Remove an extension from Internet Explorer
Remove an extension from Microsoft Edge
Fix registry entries created by Sad Computer Ransomware on your PC.
Select the “Add-ons” icon from the menu.
Select the unwanted extension and click “Remove“
After the extension is removed, restart Mozilla Firefox by closing it from the red “X” button at the top right corner and start it again.
Select the extension you want to remove and then click ‘Disable’. A pop-up window will appear to inform you that you are about to disable the selected extension, and some more add-ons might be disabled as well. Leave all the boxes checked, and click ‘Disable’.
After the unwanted extension has been removed, restart Internet Explorer by closing it from the red ‘X’ button located at the top right corner and start it again.
Open the drop menu by clicking on the icon at the top right corner.
From the drop menu select “Extensions”.
Choose the suspected malicious extension you want to remove and then click on the gear icon.
Remove the malicious extension by scrolling down and then clicking on Uninstall.
Some malicious scripts may modify the registry entries on your computer to change different settings. This is why cleaning your Windows Registry Database is recommended. Since the tutorial on how to do this is a bit long and tampering with registries could damage your computer if not done properly you should refer and follow our instructive article about fixing registry entries, especially if you are unexperienced in that area.
Before starting the Automatic Removal below, please boot back into Normal mode, in case you are currently in Safe Mode.
This will enable you to install and use SpyHunter 5 successfully.
3. Scan for malware and unwanted programs with SpyHunter Anti-Malware Tool
Scan your PC and Remove Sad Computer Ransomware with SpyHunter Anti-Malware Tool and back up your data
1. Install SpyHunter to scan for Sad Computer Ransomware and remove them.2. Scan with SpyHunter, Detect and Remove Sad Computer Ransomware.
Back up your data to secure it from malware in the future.It is 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. Click on the corresponding links to check SpyHunter’s EULA, Privacy Policy and Threat Assessment Criteria.
Step 2: Guide yourself by the download instructions provided for each browser.
Step 3: After you have installed SpyHunter, wait for it to update automatically.
Step 1: After the update process has finished, click on the ‘Malware/PC Scan’ tab. A new window will appear. Click on ‘Start Scan’.
Step 2: After SpyHunter has finished scanning your PC for any files of the associated threat and found them, you can try to get them removed automatically and permanently by clicking on the ‘Next’ button.
Step 3: If any threats have been removed, it is highly recommended to restart your PC.
Back up your data to secure it against attacks in the future
IMPORTANT! Before reading the Windows backup instructions, we highly recommend to back up your data with a cloud backup solution and insure your files against any type of loss, even from the most severe threats. We recommend you to read more about it and to download SOS Online Backup .
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.
Video, containing step by step removal instructions for Sad Computer Ransomware:
Note! Your computer system may be affected by Sad Computer Ransomware and other threats.
Scan Your MAC with Combo Cleaner
Combo Cleaner is a powerful malware removal tool designed to help users with in-depth system security analysis, detection and removal of threats such as Sad Computer Ransomware.
Keep in mind, that Combo Cleaner needs to purchased to remove the malware threats. Click on the corresponding links to check Combo Cleaner’s EULA and Privacy Policy.
Manually delete Sad Computer Ransomware from your Mac
Step 1: Hit the ⇧+⌘+U keys to open Utilities. Another way is to click on “Go” and then click “Utilities”, like the image below shows:
Step 2: Find Activity Monitor and double-click it:
Step 3: In the Activity Monitor look for any suspicious processes, belonging or related to Sad Computer Ransomware:
To quit a process completely, choose the “Force Quit” option.
Step 4: Click on the “Go” button again, but this time select Applications. Another way is with the ⇧+⌘+A buttons.
Step 5: In the Applications menu, look for any suspicious app or an app with a name, similar or identical to Sad Computer Ransomware. If you find it, right-click on the app and select “Move to Trash”.
Step 6: Select Accounts, after which click on the Login Items preference. Your Mac will then show you a list of items that start automatically when you log in. Look for any suspicious apps identical or similar to Sad Computer Ransomware. Check the app you want to stop from running automatically and then select on the Minus (“–“) icon to hide it.
Step 7: Remove any left-over files that might be related to this threat manually by following the sub-steps below:
1.Go to Finder.
2.In the search bar type the name of the app that you want to remove.
3.Above the search bar change the two drop down menus to “System Files” and “Are Included” so that you can see all of the files associated with the application you want to remove. Bear in mind that some of the files may not be related to the app so be very careful which files you delete.
4.If all of the files are related, hold the ⌘+A buttons to select them and then drive them to “Trash”.
Remove Sad Computer Ransomware – related extensions from your Mac’s browsers.
Remove a toolbar from Mozilla FirefoxRemove a toolbar from Google Chrome
Remove an extension from Safari and reset it.
Select the “Add-ons” icon from the menu.
Select the Extension and click “Remove“
After the extension is removed, restart Mozilla Firefox by closing it from the red “X” in the top right corner and start it again.
Step 1: Remove Safari extensions
Start Safari
Open the drop menu by clicking on the sprocket icon in the top right corner.
From the drop menu select ‘Preferences’
In the new window select ‘Extensions’
Click once on the extension you want removed.
Click ‘Uninstall’
A pop-up window will appear asking for confirmation to uninstall the extension. Select ‘Uninstall’ again, and the Sad Computer Ransomware will be removed.
Step 2: Reset Safari
IMPORTANT: Before resetting Safari make sure you back up all your saved passwords within the browser in case you forget them.
Start Safari and then click on the gear leaver icon.
Click the Reset Safari button and you will reset the browser.
Automatically remove Sad Computer Ransomware from your Mac
When you are facing problems on your Mac as a result of unwanted scripts and programs such as Sad Computer Ransomware, the recommended way of eliminating the threat is by using an anti-malware program. Combo Cleaner offers advanced security features along with other modules that will improve your Mac’s security and protect it in the future.
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.
