THREAT REMOVAL

Remove Anti-DDos Ransomware and Restore Your Files

This article will help you remove Anti-DDos ransomware absolutely. Follow the ransomware removal instructions at the end of the article.

Anti-DDos ransomware is also a cryptovirus with screen-locking capabilities and is dubbed after its payload dropper – “Anti-DDos.exe”. The screenlocker is smart as it shows a fake Windows Update, while the ransom message that shows afterward is written in Brazilian Portuguese. Probably users from Brazil are being the main target of the cryptovirus. Continue to read below to see how you could try to potentially restore some of your files.

Threat Summary

NameAnti-DDos
TypeRansomware
Short DescriptionThe ransomware encrypts files on your computer and later tries to extort you to pay a ransom to get your files back.
SymptomsThe ransomware will encrypt your files while putting up a screenlocker that is presented as a Windows Update service. The update is of course fake and only there to trick users.
Distribution MethodSpam Emails, Email Attachments
Detection Tool See If Your System Has Been Affected by malware

Download

Malware Removal Tool

User ExperienceJoin Our Forum to Discuss Anti-DDos.
Data Recovery ToolWindows 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.

Anti-DDos Ransomware – Update

Update! A decryption tool is now available for the Anti-DDoS ransomware! The tool was created by the malware researcher Michael Gillespie and can be downloaded from the following link, wrapped inside a .zip archive: Anti-DDos Ransomware Decrypter.

Anti-DDos Ransomware – Infection Spread

Anti-DDos ransomware might spread its infection with various methods. A payload dropper which initiates the malicious script for this ransomware could be circling around the World as this article is being written. In the case such a file lands on your computer system and you execute it – your PC will become infected.

Anti-DDos ransomware might also distribute its payload file on social media and file-sharing services. Freeware which is found on the Web can be presented as helpful also be hiding the malicious script for the cryptovirus. Refrain from opening files right after you have downloaded them. You should first scan them with a security tool, while also checking their size and signatures for anything that seems out of the ordinary. You should read the tips for preventing ransomware found in our forums.

Anti-DDos Ransomware – Detailed Information

Anti-DDos is the name of a cryptovirus that demands a ransom to be paid out and you to provide your “Steam” credentials to the developer of the virus. The name of the ransomware comes from the payload file “Anti-DDos.exe”. The target of the virus is quite likely to be just people from Brazil, as its ransom note is written in Brazilian Portuguese. However, people who are from the rest of the World could be affected as well and Brazilians might be just the main focus and not the only one. While your files are being encrypted, the following fake Windows Update screen will show up (which is also a screenlocker):

Anti-DDos ransomware could make entries in the Windows Registry to achieve persistence, and probably launch or repress processes in a Windows environment. Such entries are typically designed in a way to launch the virus automatically with each start of the Windows operating system.

The ransom message is written in Brazilian Portuguese, as it uses that dialect specifically, and gives details about how you could restore your files by paying a ransom. You can preview the ransom message that loads after the encryption process is complete from the below image:

That ransom message reads the following:

Ransoware Detected!
Seu pc Foi Sequestrado!
Aviso: Desligar o computador irar fazer seus arquivos serem deletados!
Se você pretende recuperar seu computador siga os passos:
1.) Pegue a chave
2.) 123-4CS-31G-GH1
3.) Coloque em chave de acesso e de Ok
4.) Logo em seguida crie um arquivo na sua area de trabalho chamado acesso.txt
5.) Coloque seu email e senha da Steam.
6.) Espere 60 segundos!
Endereço de bitcoin: xxxxxxxxxxxxxxxxx
Digite a chave de acesso:
Ok!

A rough translation of that message in English is the following:

Ransomware Detected!
Your PC has been hijacked!
Warning: Turn off the computer irar make your files be deleted!
If you plan to recover your computer follow the steps:
1.) Take the key
2.) 123-4CS-31G-GH1
3.) Put in access key and Ok
4.) Next create a file on your desktop called access.txt
5.) Enter your Steam email and password.
6.) Wait 60 seconds!
Bitcoin’s address: xxxxxxxxxxxxxxxxx
Enter the passkey:
Ok!

The note of the Anti-DDos ransomware states that your files are encrypted. A warning is given, that upon turning off your computer machine, all your files will be deleted. Even if that is true, do not worry as the ransomware seems to be decryptable. Do not give your “Steam” or E-mail credentials, nor should you pay up or contact the criminals. Your files may not get restored upon payment and you have no guarantee of that working. Moreover, giving money to cybercriminals will likely motivate them to delve further into the criminal world.

Anti-DDos Ransomware – Encryption Process

The ransomware uses the AES algorithm for its encryption process according to some malware researchers. You can see a list with file extensions that the Anti-DDos ransomware probably seeks to encrypt:

→.7z, .bmp, .doc, .docm, .docx, .html, .jpeg, .jpg, .mp3, .mp4, .pdf, .php, .ppt, .pptx, .rar, .rtf, .sql, .tiff, .txt, .xls, .xlsx, .zip

Those files are the most commonly-used ones for most Windows users, which is why the list could be on-point.

The Anti-DDos cryptovirus could be set to erase all the Shadow Volume Copies from the Windows operating system with the help of the following command:

→vssadmin.exe delete shadows /all /Quiet

In case the command stated above is executed that would make the encryption process more efficient as it will eliminate one of the ways for restoring your files. If your computer was infected with this ransomware and your files are locked, read on through to find out how you could potentially recover your files.

Remove Anti-DDos Ransomware and Restore Your Files

If your computer got infected with the Anti-DDos ransomware virus, you should have a bit of experience in removing malware. You should get rid of this ransomware as quickly as possible before it can have the chance to spread further and infect other computers. You should remove the ransomware and follow the step-by-step instructions guide provided below.

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Berta Bilbao

Berta is a dedicated malware researcher, dreaming for a more secure cyber space. Her fascination with IT security began a few years ago when a malware locked her out of her own computer.

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Attention! SensorsTechForum strongly recommends that all malware victims should look for assistance only by reputable sources. Many guides out there claim to offer free recovery and decryption for files encrypted by ransomware viruses. Be advised that some of them may only be after your money.

As a site that has been dedicated to providing free removal instructions for ransomware and malware since 2014, SensorsTechForum’s recommendation is to only pay attention to trustworthy sources.

How to recognize trustworthy sources:

  • Always check "About Us" web page.
  • Profile of the content creator.
  • Make sure that real people are behind the site and not fake names and profiles.
  • Verify Facebook, LinkedIn and Twitter personal profiles.


OFFER

REMOVE IT NOW (PC)
with Anti-Malware
We recommend you to download SpyHunter and run free scan to remove all virus files on your PC. This saves you hours of time and effort compared to doing the removal yourself.
SpyHunter 5 free remover allows you, subject to a 48-hour waiting period, one remediation and removal for results found. Read EULA and Privacy Policy


Windows Mac OS X

How to Remove Anti-DDos from Windows.


Step 1: Boot Your PC In Safe Mode to isolate and remove Anti-DDos

OFFER

Manual Removal Usually Takes Time and You Risk Damaging Your Files If Not Careful!
We Recommend To Scan Your PC with SpyHunter

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

1. Hold Windows key() + R


2. The "Run" Window will appear. In it, type "msconfig" and click OK.


3. Go to the "Boot" tab. There select "Safe Boot" and then click "Apply" and "OK".
Tip: Make sure to reverse those changes by unticking Safe Boot after that, because your system will always boot in Safe Boot from now on.


4. When prompted, click on "Restart" to go into Safe Mode.


5. You can recognise Safe Mode by the words written on the corners of your screen.


Step 2: Uninstall Anti-DDos and related software 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:


1. Hold the Windows Logo Button and "R" on your keyboard. A Pop-up window will appear.


2. In the field type in "appwiz.cpl" and press ENTER.


3. This will open a window with all the programs installed on the PC. Select the program that you want to remove, and press "Uninstall"
Follow the instructions above and you will successfully uninstall most programs.


Step 3: Clean any registries, created by Anti-DDos 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 Anti-DDos there. This can happen by following the steps underneath:

1. Open the Run Window again, type "regedit" and click OK.


2. When you open it, you can freely navigate to the Run and RunOnce keys, whose locations are shown above.


3. You can remove the value of the virus by right-clicking on it and removing it.
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.

IMPORTANT!
Before starting "Step 4", 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 Anti-DDos with SpyHunter Anti-Malware Tool

1. Click on the "Download" button to proceed to SpyHunter's download page.


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.


2. After you have installed SpyHunter, wait for it to update automatically.

SpyHunter5-update-2018


3. After the update process has finished, click on the 'Malware/PC Scan' tab. A new window will appear. Click on 'Start Scan'.

SpyHunter5-Free-Scan-2018


4. 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.

SpyHunter-5-Free-Scan-Next-2018

If any threats have been removed, it is highly recommended to restart your PC.

Step 5 (Optional): Try to Restore Files Encrypted by Anti-DDos.

Ransomware infections and Anti-DDos aim to encrypt your files using an encryption algorithm which may be very difficult to decrypt. This is why we have suggested a data recovery method that may help you go around direct decryption and try to restore your files. Bear in mind that this method may not be 100% effective but may also help you a little or a lot in different situations.

1. Download the reccomended Data Recovery software by clicking on the link underneath:

Simply click on the link and on the website menus on top, choose Data Recovery - Data Recovery Wizard for Windows or Mac (depending on your OS), and then download and run the tool.


Windows Mac OS X

Get rid of Anti-DDos from Mac OS X.


Step 1: Uninstall Anti-DDos and remove related files and objects

OFFER
Manual Removal Usually Takes Time and You Risk Damaging Your Files If Not Careful!
We Recommend To Scan Your Mac with SpyHunter for Mac
Keep in mind, that SpyHunter for Mac needs to purchased to remove the malware threats. Click on the corresponding links to check SpyHunter’s EULA and Privacy Policy


1. Hit the ⇧+⌘+U keys to open Utilities. Another way is to click on “Go” and then click “Utilities”, like the image below shows:


2. Find Activity Monitor and double-click it:


3. In the Activity Monitor look for any suspicious processes, belonging or related to Anti-DDos:

Tip: To quit a process completely, choose the “Force Quit” option.


4. Click on the "Go" button again, but this time select Applications. Another way is with the ⇧+⌘+A buttons.


5. In the Applications menu, look for any suspicious app or an app with a name, similar or identical to Anti-DDos. If you find it, right-click on the app and select “Move to Trash”.


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 Anti-DDos. Check the app you want to stop from running automatically and then select on the Minus (“-“) icon to hide it.


7: Remove any left-over files that might be related to this threat manually by following the sub-steps below:

  • Go to Finder.
  • In the search bar type the name of the app that you want to remove.
  • 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.
  • If all of the files are related, hold the ⌘+A buttons to select them and then drive them to “Trash”.

In case you cannot remove Anti-DDos via Step 1 above:

In case you cannot find the virus files and objects in your Applications or other places we have shown above, you can manually look for them in the Libraries of your Mac. But before doing this, please read the disclaimer below:

Disclaimer! If you are about to tamper with Library files on Mac, be sure to know the name of the virus file, because if you delete the wrong file, it may cause irreversible damage to your MacOS. Continue on your own responsibility!

1: Click on "Go" and Then "Go to Folder" as shown underneath:

2: Type in "/Library/LauchAgents/" and click Ok:

3: Delete all of the virus files that have similar or the same name as Anti-DDos. If you believe there is no such file, do not delete anything.

You can repeat the same procedure with the following other Library directories:

→ ~/Library/LaunchAgents
/Library/LaunchDaemons

Tip: ~ is there on purpose, because it leads to more LaunchAgents.


Click the button below below to download SpyHunter for Mac and scan for Anti-DDos:


Download

SpyHunter for Mac



Step 3 (Optional): Try to Restore Files Encrypted by Anti-DDos.

Ransomware infections and Anti-DDos aim to encrypt your files using an encryption algorithm which may be very difficult to decrypt. This is why we have suggested a data recovery method that may help you go around direct decryption and try to restore your files. Bear in mind that this method may not be 100% effective but may also help you a little or a lot in different situations.

1. Download the reccomended Data Recovery software by clicking on the link underneath:

Simply click on the link and on the website menus on top, choose Data Recovery - Data Recovery Wizard for Windows or Mac (depending on your OS), and then download and run the tool.


Anti-DDos FAQ

What is Anti-DDos ransomware and how does it work?

Anti-DDos is a ransomware infection - the malicious software that enters your computer silently and blocks either access to the computer itself or encrypt your files.

Many ransomware viruses use sophisticated encryption algorithm how to make your files inaccessible. The goal of ransomware infections is to demand that you pay a ransom payment to get access to your files back.

How does Anti-DDos ransomware infect my computer?

Via several ways.Anti-DDos Ransomware infects computers by being sent via phishing e-mails, containing virus attachment.

This attachment is usually masked as an important document, like an invoice, bank document or even a plane ticket and it looks very convincing to users.

After you download and execute this attachment, a drive-by download occurs and your computer is infected with the ransomware virus.

Another way, you may become a victim of Anti-DDos is if you download a fake installer, crack or patch from a low reputation website or if you click on a virus link. Many users report getting a ransomware infection by downloading torrents.

How to open .Anti-DDos files?

You can't. At this point the .Anti-DDos files are encrypted. You can only open them once they are decrypted.

Decryptor did not decrypt my data. What now?

Do not panic and backup the files. If a decryptor did not decrypt your .Anti-DDos files successfully, then do not despair, because this virus is still new.

One way to restore files, encrypted by Anti-DDos ransomware is to use a decryptor for it. But since it's a new virus, advised that the decryption keys for it may not be out yet and available to the public. We will update this article and keep you posted as soon as this decryptor is released.

How Do I restore ".Anti-DDos" files (Other Methods)?

Yes, sometimes files can be restored. We have suggested several file recovery methods that could work if you want to restore .Anti-DDos files.

These methods are in no way 100% guarantee that you will be able to get your files back. But if you have a backup, your chances of success are much greater.

How do I get rid of Anti-DDos ransomware virus?

The safest way and the most efficient one for the removal of this ransomware infection is the use a professional anti malware software. It will scan for and locate Anti-DDos ransomware and then remove it without causing any additional harm to your important .Anti-DDos files.

Also, keep in mind that viruses like Anti-DDos ransomware also install Trojans and keyloggers that can steal your passwords and accounts. Scanning your computer with an anti-malware software will make sure that all of these virus components are removed and your computer is protected in the future.

What to Do If nothing works?

There is still a lot you can do. If none of the above methods seem to work for you, then try these methods:

  • Try to find a safe computer from where you can can login on your own line accounts like One Drive, iDrive, Google Drive and so on.
  • Try to contact your friends, relatives and other people so that they can check if they have some of your important photos or documents just in case you sent them.
  • Also, check if some of the files that were encrypted it can be re-downloaded from the web.
  • Another clever way to get back some of your files is to find another old computer, a flash drive or even a CD or a DVD where you may have saved your older documents. You might be surprised what will turn up.
  • You can also go to your email account to check if you can send any attachments to other people. Usually what is sent the email is saved on your account and you can re-download it. But most importantly, make sure that this is done from a safe computer and make sure to remove the virus first.

More tips you can find on our forums, where you can also asks any questions about your ransomware problem.

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