Karla404 – Ransomware
The Karla404 stands for a ransomware-type infection. The infection comes from the ZEPPELIN ransomware family. Karla404 was elaborated particularly to encrypt all major file types. As soon as the file is encrypted people are not able to use them. Karla404 adds the “.Karla404” extension for each file encrypted by it. For example, the file “myphoto.jpg“, as soon as encrypted by Karla404, will be renamed into “myphoto.jpg.Karla404“. As quickly as the encryption is completed, Karla404 places a special text file into every folder containing the encrypted data.The message given by Karla404 text file requesting for the ransom is absolutely the like the statements given by other ransomware virus representatives belonging to the ZEPPELIN type. It actually points out that the info is encrypted which the only way to bring back it is to use a a distinct decryption key. Unfortunately, this is absolutely true. The type of cryptography mechanism applied by Karla404 is still not appropriately examined. Still, it is definitely specific that each victim may be given the specific decryption key, which is absolutely unique. It is impossible to bring back the files without the key available.
Another technique of Karla404 is that the victims cannot get to the key. The key is saved on a particular server run by the frauds connected with Karla404 ransomware. To get the key and recover the important information people have to pay the ransom.
Karla404 encrypted your documents, but that might not be the only damage done to you. The ransomware might still be hidingon your computer. To identify whether this holds true, we suggest downloading GridinSoft Anti-Malware.
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However, irrespective of the requested quantity, people must keep away from paying the ransom. Cyber frauds are not fair, so they tend to totally ignore what their victims feel about the issue, even when the payment reaches their pockets. This is why paying the ransom normally does not give any positive result and people just waste their money for nothing.
We highly recommend that you do not contact these crooks and certainly do not transfer money into their accounts. It is said to admit that there are no utilities able to crack Karla404 ransomware and to recover the information data for free. Therefore, the only right decision is to recover the lost information from the available backup.
Virus Summary
| Name | Karla404 Ransomware |
| File Extension | .Karla404 |
| Type | Ransomware |
| Family | ZEPPELIN |
| Short Description | The ransomware encrypts all the data stored on your system and requires a ransom to be paid on your part supposedly to recover your important files. |
| Symptoms | File encryption by the ransomware is performed by means of the AES and RSA encryption algorithms. Once the encryption is completed, the ransomware adds its special Karla404 extension to all the files modified by it. |
| Distribution Method | Spam Emails, Email Attachments |
| Removal Tool | GridinSoft Anti-Malware |
Remember that the web is now overwhelmed with threats that look comparable to Karla404 ransomware. Destructive programs of such kind are generally elaborated to encrypt essential data and to state the need prior to the user to pay the ransom. The peculiarity of all such ransomware threats is that all apply a similar algorithm to produce the distinct decryption key for files decryption.
Thus, as long as the ransomware is still being developed or has some hidden bugs, manually recovering the information is simply not feasible. The only way to prevent the loss of your important data is to routinely create backups of your important information.
Bear in mind that even if you create such backups, they must be put into a special storage utility not connect to your main PC. You may use the USB Memory Stick or external hard disk drive for this purpose, or refer to the help of the cloud storage. If you keep your backup files on your common system they may be encrypted in addition to other files, so it’s definitely not a good storage place.
How did ransomware infect my PC?
There are numerous ways used by online frauds to distribute Karla404 ransomware. Although it doubts how precisely Karla404 injects your system, there are some leaks through which it may infiltrate the system:
- integration with third-party apps, especially freeware;
- spam emails from unidentified senders;
- sites rendering free hosting services;
- pirated peer-to-peer (P2P) downloads.
Frequently Karla404 ransomware may be presented as some legitimate software application, for example, in the pop-ups advising users to implement some crucial software updates. This is the common trick used by online frauds to persuade people into downloading and installing Karla404 infection manually, by ways of their direct participation in the installation process.
Furthermore, the criminals might describe numerous email spam strategies to inject harmful codes into systems. So, they may refer to to sending unsolicited spam e-mails with tricky notices promoting users to download the attachments or click on certain download links, for example, the ones motivating users to open some video, files, tax reports or invoices.
Needless to mention, opening such files or clicking on such dangerous links may significantly harm the system. Fictitious Adobe Flash Player update alerts may result in Karla404 ransom injection. As for the cracked software, these illegally downloaded programs may likewise consist of harmful codes leading to Karla404 secret installation. Finally, injection of Karla404 may take place by methods of Trojans that secretly get injected into the system and set up malicious tools without the user’s approval.
Is there any way to avoid the injection of Karla404 ransom virus?
Although there is no 100% guarantee to prevent your system from getting infected, there are some pieces of recommendations we want to show with you. To start with, be very careful when you browse the web and especially while downloading free programs. Keep away from opening suspicious email attachments, especially when the sender of the email is not familiar to you.
Keep in mind that some freeware installers may include other unwanted utilities in the bundle, so they may be malicious. Make certain that your current antivirus software and your entire operating system is always appropriately updated.
Of course, downloading pirated software is prohibited and may lead to essential damage to be made for your PC. For this reason, stay away from downloading cracked software. You are also highly advised to reconsider your existing security software and potentially switch to another security solution that can render much better services of defending your Windows.
Below please find the quotation from the Karla404 text file:
!!! ALL YOUR FILES ARE ENCRYPTED !!! All your files, documents, photos, databases and other important files are encrypted. You are not able to decrypt it by yourself! The only method of recovering files is to purchase an unique private key. Only we can give you this key and only we can recover your files. To be sure we have the decryptor and it works you can send an email: kokolozombisam@gmail.com and decrypt one file for free. But this file should be of not valuable! Do you really want to restore your files? Write to email: kokolozombisam@gmail.com Telegraml: @Karla404 Your personal ID: - Attention! * Do not rename encrypted files. * Do not try to decrypt your data using third party software, it may cause permanent data loss. * Decryption of your files with the help of third parties may cause increased price (they add their fee to our) or you can become a victim of a scam.
Screenshot of files with “.Karla404” extension added by the ransomware:
Use GridinSoft Anti-Malware to remove Karla404 ransomware from your computer
1.Download GridinSoft Anti-Malware.
You can download GridinSoft Anti-Malware by clicking the button below:
2. Double-click on the setup file.
When setup file has finished downloading, double-click on the setup-antimalware-ag.exe file to install GridinSoft Anti-Malware on your computer.
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.
3. Press Install button for run GridinSoft Anti-Malware.
3.Once installed, GridinSoft Anti-Malware will automatically run.
4. Wait for the GridinSoft Anti-Malware scan to complete.
GridinSoft Anti-Malware will automatically start scanning your computer for Win Speedup 2018 and other malicious programs. This process can take a 20-30 minutes, so we suggest you periodically check on the status of the scan process.
5. 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.
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