KMA47 Ransomware (.encrypt Files) — How to remove virus?

Written by Brendan Smith
The Kma47 virus falls within the ransomware type of malicious agent. Ransomware of such sort encrypts all user’s data on the PC (images, documents, excel sheets, audio files, videos, etc) and appends its specific extension to every file, leaving the read_me.txt text files in each folder containing encrypted files.
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What is known about the Kma47virus?

☝️ A strictly correct description for the Kma47 would be “a ransomware-type infection”.

Kma47 will append its extra .encrypt extension to every file’s name. For example, a file named “photo.jpg” will be renamed to “photo.jpg.encrypt”. Just like the Excel file named “table.xlsx” will be renamed to “table.xlsx.encrypt”, and so on.

In every directory with the encoded files, a read_me.txt file will be created. It is a ransom money note. It contains information about the ways of contacting the racketeers and some other remarks. The ransom note usually contains instructions on how to buy the decryption tool from the tamperers. That is how they do it.

Kma47 outline:
NameKma47 Virus
Extension.encrypt
Ransomware noteread_me.txt
Detection1Trojan.FuerboosPMF.S2873333, MSIL/Filecoder.EvilNominatus.A, Trojan-Ransom.PowerShell.Agent.af
SymptomsYour files (photos, videos, documents) have a .encrypt extension and you can’t open them.
Fix ToolSee If Your System Has Been Affected by Kma47 virus

In the screenshot below, you can see what a directory with files encrypted by the Kma47 looks like. Each filename has the “.encrypt” extension added to it.

Kma47 Virus - encrypted .encrypt files

That is how encrypted “.encrypt” files look.

How did my computer get infected with Kma47 ransomware?

There is a huge number of possible ways of ransomware infiltration.

Nowadays, there are three most popular ways for hackers to have the Kma47 virus planted in your system. These are email spam, Trojan injection and peer file transfer.

If you access your inbox and see emails that look like familiar notifications from utility services companies, postal agencies like FedEx, Internet providers, and whatnot, but whose sender is unknown to you, beware of opening those emails. They are most likely to have a viral file attached to them. So it is even riskier to open any attachments that come with letters like these.

Another thing the hackers might try is a Trojan horse scheme2. A Trojan is an object that gets into your computer disguised as something legal. Imagine, you download an installer of some program you want or an update for some service. But what is unboxed turns out to be a harmful agent that encrypts your data. Since the installation wizard can have any name and any icon, you’d better be sure that you can trust the source of the files you’re downloading. The best way is to use the software companies’ official websites.

As for the peer-to-peer file transfer protocols like torrents or eMule, the danger is that they are even more trust-based than the rest of the Web. You can never guess what you download until you get it. So you’d better be using trustworthy websites. Also, it is a good idea to scan the folder containing the downloaded files with the antivirus as soon as the downloading is complete.

How to remove the Kma47 virus?

It is crucial to note that besides encrypting your data, the Kma47 virus will probably deploy the Azorult Spyware on your computer to seize your credentials to different accounts (including cryptocurrency wallets). That spyware3 can extract your logins and passwords from your browser’s auto-filling data.

Sometimes tamperers would decode few of your files to prove that they do have the decryption tool. Since Kma47 virus is a relatively new ransomware, security software designers have not yet found a method to reverse its work. However, the anti-ransomware tools are frequently upgraded, so the solution may soon arrive.

Of course, if the evildoers succeed in encoding someone’s essential files, the hopeless person will probably comply with their demands. Despite that, paying to racketeers gives no guarantee that you’re getting your files back. It is still dangerous. After obtaining the ransom, the racketeers may deliver a wrong decryption key to the victim. There were reports of racketeers simply vanishing after getting the money without even bothering to reply.

The best countermeasure to ransomware is to have aan OS restore point or the copies of your essential files in the cloud drive or at least on an external storage. Obviously, that might be not enough. Your most important thing could be that file you were working on when it all started. But at least it is something. It is also wise to scan your drives with the antivirus program after the OS is rolled back.

There are other ransomware products, besides Kma47, that work similarly. Examples of those are Xcmb, Dehd, Hudf, and some others. The two basic differences between them and the Kma47 are the ransom amount and the encoding method. The rest is the same: files become encrypted, their extensions changed, ransom notes appear in each folder containing encoded files.

Some fortunate users were able to decode the blocked files with the help of the free tools provided by anti-malware developers. Sometimes the racketeers accidentally send the decoding code to the victims in the ransom readme. Such an epic fail allows the injured part to restore the files. But naturally, one should never expect such a chance. Remember, ransomware is a tamperers’ tool to pull the money out of their victims.

How сan I avert ransomware infiltration?

Kma47 ransomware has no superpower, so as any similar malware.

You can armour your PC from its injection within three easy steps:

  • Ignore any emails from unknown mailers with strange addresses, or with content that has likely no connection to something you are waiting for (can you win in a money prize draw without even taking part in it?). If the email subject is more or less something you are expecting, check all elements of the dubious letter carefully. A hoax email will always contain mistakes.
  • Avoid using cracked or untrusted programs. Trojans are often spreaded as an element of cracked software, most likely as a “patch” preventing the license check. But untrusted programs are difficult to distinguish from trustworthy ones, as trojans may also have the functionality you need. You can try searching for information on this program on the anti-malware message boards, but the optimal solution is not to use such programs at all.
  • And finally, to be sure about the safety of the files you downloaded, check them with GridinSoft Anti-Malware. This program will be a perfect armor for your PC.
Reasons why I would recommend GridinSoft4

There is no better way to recognize, remove and prevent ransomware than to use an anti-malware software from GridinSoft5.

Download Removal Tool.

You can download GridinSoft Anti-Malware by clicking the button below:

Run the setup file.

When setup file has finished downloading, double-click on the setup-antimalware-fix.exe file to install GridinSoft Anti-Malware on your system.

Run Setup.exe

An User Account Control asking you about to allow GridinSoft Anti-Malware to make changes to your device. So, you should click “Yes” to continue with the installation.

GridinSoft Anti-Malware Setup

Press “Install” button.

GridinSoft Anti-Malware Install

Once installed, Anti-Malware will automatically run.

GridinSoft Anti-Malware Splash-Screen

Wait for the Anti-Malware scan to complete.

GridinSoft Anti-Malware will automatically start scanning your PC for Kma47 infections and other malicious programs. This process can take a 20-30 minutes, so I suggest you periodically check on the status of the scan process.

GridinSoft Anti-Malware Scanning

Click on “Clean Now”.

When the scan has completed, you will see the list of infections that GridinSoft Anti-Malware has detected. To remove them click on the “Clean Now” button in right corner.

GridinSoft Anti-Malware Scan Result

FAQ

🤔 How can I open “.encrypt” files?Is it possible to open“.encrypt” files?

There’s no way to do it, unless the files “.encrypt” files are decrypted.

🤔 I really need to decrypt those “.encrypt” files ASAP. How can I do that?

If the “.encrypt” files contain some really important information, then you probably have them backed up. In case you haven’t, there is still a chance that you do have a Restore Point from some time ago to roll back the whole system to the moment when it had no virus yet, but already had your files. There are other ways to beat ransomware, but they take time.

🤔 Will GridinSoft Anti-Malware remove all the encrypted files alongside the Kma47 virus?

Absolutely not! Unlike the ransomware program itself, the encrypted files do not jeopardize your system.

GridinSoft Anti-Malware will delete the viruses from your computer. The ransomware that has attacked your system is must be still functional and running scans every so often to encode any new files you might create on your PC after the infection. As it has been said above, the Kma47 ransomware does not come alone. It installs backdoors and keyloggers that can steal your account credentials and provide criminals with easy access to your system after some time.

🤔 What should I do if the Kma47 virus has blocked my PC and I can’t get the activation key.

In such a case, you need to prepare a flash memory drive with a previously installed Trojan Killer. Use Safe Mode to perform the procedure. The point is that the ransomware starts automatically as the system boots and encrypts any new files created or brought into your machine. To block this function – use Safe Mode, which allows only the vital applications to run automatically. Consider reading our manual on booting Windows in Safe Mode.

🤔 And what should I do now?

Many of the blocked files might still be at your disposal

  • If you exchanged your critical files by email, you could still download them from your online mail server.
  • You might have shared images or videos with your friends or family members. Just ask them to send those images back to you.
  • If you have initially got any of your files from the Web, you can try doing it again.
  • Your messengers, social networks pages, and cloud storage might have all those files too.
  • It might be that you still have the needed files on your old PC, a laptop, cellphone, memory stick, etc.

HINT: You can employ data recovery programs6 to retrieve your lost information since ransomware encodes the copies of your files, removing the authentic ones. In the tutorial below, you can learn how to recover your files with PhotoRec, but remember: you won’t be able to do it before you eradicate the ransomware itself with an antivirus program.

Also, you can contact the following official fraud and scam sites to report this attack:

To report the attack, you can contact local executive boards. For instance, if you live in USA, you can have a talk with FBI Local field office, IC3 or Secret Service.

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Brendan Smith
How to Remove KMA47 Ransomware & Recover PC

Name: KMA47 Virus

Description: KMA47 Virus is a ransomware-type infections. This virus encrypts important personal files (video, photos, documents). The encrypted files can be tracked by a specific .encrypt extension. So, you can't use them at all.

Operating System: Windows

Application Category: Virus

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References

  1. Encyclopedia of threats.
  2. You can read more on Trojans, their use and types in the Trojan-dedicated section of GridinSoft official website.
  3. You can read more on spyware variants and nature in the respective section of GridinSoft official website.
  4. GridinSoft Anti-Malware Review from HowToFix site: https://howtofix.guide/gridinsoft-anti-malware/
  5. More information about GridinSoft products: https://gridinsoft.com/products/
  6. Here’s the list of the top 10 file recovery tools of 2021.

About the author

Brendan Smith

Journalist, researcher, web content developer, grant proposal editor. Efficient and proficient on multiple platforms and in diverse media. Computer technology and security are my specialties.

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