Kovter ransomware infections have increased significantly in the second quarter of 2014, report malware researchers from the Damballa security firm. On average, the daily incidents have been up by 153% between April and May this year. The ransomware has reached an activity peak, affecting 43,713 machines in a single day.
What Is Kovter Ransomware?
Kovter is a police ransomware trojan that has been infecting computers around the world since 2013. Among the countries that suffered the most attacks are Germany, France, USA, UK, Italy and the Netherlands. Kovter uses typical ransomware tactics to extort money from its victims. It displays a fake police-message informing the user that his computer has been locked due to law-violations. In order to unlock the system, the user needs to pay a fee (usually around $300) in a short period. The payment method varies depending on the different countries. For the USA, the crooks usually require a Money Pack prepaid card. To block the access to the infected PC Kovter uses a Winlocker component.
Kovter is distributed to the user’s computer the same way other Ukash viruses are. They use malicious methods to sneak into the targeted system, relying on a trojan, hidden in illegal webpages and files.
The Unique Technique of the Kovter Ransomware
What makes Kovter different from other ransomware infections and has turned it into a severe computer threat really fast is the tactic it uses to scare its victims into paying the fee. Once in the system, Kovter starts collecting information from the browsing history of the infected PC, which is then used to create an individual ransom-message for each victim. Instead of using a generic warning, Kovter displays a message pretending to be from various institutions like the FBI, US Department of Homeland Security and the US Department of Justice, stating that the victim has downloaded illegal content online and that the compromised machine has been used to distribute it.
The Kovter Ransomware adds a unique touch to its scheme that makes it different from all other, similar threats. The ransom message includes the IP address of the infected PC and the URL, allegedly containing the “illegal content.” What Kovter does, is scanning the victim’s browser history for pornographic material. If there are any websites matching the ransomware’s threat list, they will be pointed as the source of the illegal content in the warning message. If not – the malware will “create” the evidence on its own, choosing a random pornographic site and redirecting the victim’s browser to it. Then it will log the history and retrieve content to display. This kind of “personal approach” makes the scam warning even more believable.
The Upward Trend
Although many users recognize the scam, the number of the infected machines increases each month. The victims are strongly advised not to pay the fee because there is a big chance that they will not be provided with the details for unlocking the PC.
Malware researchers detected a big increase in Kovter infections in Q2 2014. In June, the ransomware managed to hit 43,713 systems in only one day. The average daily infections were up by 153% in May and 52% in June.
Here are the numbers for Q2 2014, provided by the Damballa research team:
- April: Lowest number of daily active infections – 6 602, highest – 18 089
- May: Lowest number of daily active infections – 7 542, highest – 37 386
- June: Average amount of daily infections – 37 733, or a 52% increase, month over month
You do not have to be a part of the statistics. Assure your system’s safety by using legitimate tools to avoid computer infections and make sure your anti-virus software is up-to-date.
Spy Hunter FREE scanner will only detect the threat. If you want the threat to be automatically removed, you need to purchase the full version of the malware tool. Find Out More About SpyHunter Anti-Malware Tool
- Guide 1: How to Remove Kovter Ransomware from Windows.
- Guide 2: Get rid of Kovter Ransomware from Mac OS X.
How to Remove Kovter Ransomware from Windows.
Step 1: Boot Your PC In Safe Mode to isolate and remove Kovter Ransomware
Step 2: Uninstall Kovter Ransomware 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.
Step 3: Clean any registries, created by Kovter Ransomware on your computer.
The usually targeted registries of Windows machines are the following:
You can access them by opening the Windows registry editor and deleting any values, created by Kovter Ransomware there. This can happen by following the steps underneath:
Step 4: Scan for Kovter Ransomware with SpyHunter Anti-Malware Tool
Step 5 (Optional): Try to Restore Files Encrypted by Kovter Ransomware.
Ransomware infections and Kovter Ransomware 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.
If the above link does not work for you and your region, try the other two links below, that lead to the same product:
Get rid of Kovter Ransomware from Mac OS X.
Step 1: Uninstall Kovter Ransomware and remove related files and objects
1. Hit the ⇧+⌘+U keys to open Utilities. Another way is to click on “Go” and then click “Utilities”, like the image below shows:
- 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 Kovter Ransomware 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:
You can repeat the same procedure with the following other Library directories:
Tip: ~ is there on purpose, because it leads to more LaunchAgents.
Step 2: Scan for and remove Kovter Ransomware files from your Mac
When you are facing problems on your Mac as a result of unwanted scripts and programs such as Kovter 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.
Step 3 (Optional): Try to Restore Files Encrypted by Kovter Ransomware on your Mac.
Ransomware for Mac Kovter Ransomware aims to encode all your files using an encryption algorithm which may be very difficult to decode, unless you pay money. This is why we have suggested a data recovery method that may help you go around direct decryption and try to restore your files, but only in some cases. Bear in mind that this method may not be 100% effective but may also help you a little or a lot in different situations.
Kovter Ransomware FAQ
What is Kovter Ransomware ransomware and how does it work?
Kovter Ransomware 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 Kovter Ransomware ransomware infect my computer?
Kovter Ransomware 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 Kovter Ransomware 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 .Kovter Ransomware files?
You can't. At this point the .Kovter Ransomware files are encrypted. You can only open them once they are decrypted.
Decryptor did not decrypt my data. What now?
If a decryptor did not decrypt your .Kovter Ransomware files successfully, then do not despair, because this virus is still new.
One way to restore files, encrypted by Kovter Ransomware 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 ".Kovter Ransomware" files (Other Methods)?
We have suggested several file recovery methods that could work if you want to restore .Kovter Ransomware 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 Kovter Ransomware 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 Kovter Ransomware ransomware and then remove it without causing any additional harm to your important .Kovter Ransomware files.
Also, keep in mind that viruses like Kovter Ransomware 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?
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.