Jigsaw Virus – Details
The Jigsaw mean a ransomware-type infection. The infection comes from the Jigsaw ransomware family. Jigsaw was elaborated specifically to encrypt all major file types. Once the file is encrypted people are unable to use them. Jigsaw adds the “.kwkc” extension for each file encrypted by it. For example, the file “myphoto.jpg“, as soon as encrypted by Jigsaw, will be renamed into “myphoto.jpg.kwkc“. As quickly as the encryption is finished, Jigsaw places a special text file into every folder containing the encrypted data.The message given by Jigsaw text file requesting the ransom is absolutely the like the statements given by other ransomware virus representatives coming from the Jigsaw clan. It literally points out that the information is encrypted and that the only way to bring back it is to use a a special decryption key. Sadly, this is absolutely true. The sort of cryptography mechanism applied by Jigsaw is still not properly examined. Still, it is definitely particular that each victim might be given the specific decryption key, which is totally distinct. It is difficult to bring back the files without the key available.
Another trick of Jigsaw is that the victims cannot gain access to the key. The key is stored on a particular server run by the frauds connected with Jigsaw ransomware. To get the key and recover the important info people need to pay the ransom.
Jigsaw 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 amount, people must keep away from paying the ransom. Cyber frauds are unfair, so they tend to entirely ignore what their victims feel about the problem, even when the payment reaches their pockets. This is why paying the ransom normally does not give any positive outcome and people just waste their money for absolutely nothing.
We strongly encourage that you do not contact these crooks and definitely do not transfer money into their accounts. It is said to admit that there are no utilities able to crack Jigsaw ransomware and to recover the information data for free. Hence, the just right decision is to recover the lost information from the available backup.
Virus Summary
| Name | Jigsaw Ransomware |
| File Extension | .kwkc |
| Type | Ransomware |
| Family | Jigsaw |
| 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 kwkc 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 Jigsaw ransomware. Destructive programs of such kind are normally 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 create the distinct decryption key for information decryption.
Thus, as long as the ransomware is still being developed or has some hidden bugs, manually recovering the information is merely not feasible. The only method to avoid the loss of your essential information is to routinely create backups of your important information.
Keep in mind that even if you create such backups, they need to be put into a special storage utility not connect to your main PC. You may use the USB Memory Stick or external hard disk for this purpose, or refer to the help of the cloud storage. If you store your backup files on your common system they may be encrypted together with other files, so it’s certainly not a good storage place.
How did ransomware infect my system?
There are several methods used by online scams to distribute Jigsaw ransomware. Despite the fact that it is uncertain how exactly Jigsaw injects your computer, there are some leaks through which it may infiltrate the system:
- integration with third-party software, especially freeware;
- spam e-mails from unidentified senders;
- websites rendering free hosting services;
- pirated peer-to-peer (P2P) downloads.
Frequently Jigsaw ransomware might exist as some legitimate software, for example, in the pop-ups instructing users to execute some crucial software application updates. This is the typical technique used by online frauds to persuade people into downloading and installing Jigsaw infection manually, by means of their direct participation in the installation process.
Additionally, the criminals may refer to various e-mail spam techniques to inject malicious codes into copmuter. So, they may describe 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 encouraging users to open some receipts, files, tax reports or invoices.
Needless to mention, opening such files or clicking on such dangerous links may badly damage the system. Fictitious Adobe Flash Player upgrade notifies may result in Jigsaw ransom injection. As for the cracked software, these illegally downloaded programs may likewise contain malicious codes causing Jigsaw secret installation. Finally, injection of Jigsaw may happen by means of Trojans that secretly get injected into the system and set up destructive utilities without the user’s consent.
Is there any method to avoid the injection of Jigsaw ransom virus?
Although there is no 100% guarantee to avoid your PC from getting infected, there are some pieces of guidance we want to show with you. Firstly, be extremely careful when you browse the web and particularly while downloading free apps. Keep away from opening suspicious email attachments, especially when the sender of the email is not familiar to you.
Remember that some freeware installers may contain other unwanted utilities in the package, so they may be harmful. Ensure that your current anti-virus and your entire operating system is always duly updated.
Of course, downloading pirated software is prohibited and may lead to necessary damage to be made for your system. For this reason, stay away from downloading cracked software. You are also highly encouraged to reconsider your existing security software and possibly switch to another security solution that can render better services of protecting your Windows.
Below please find the quotation from the Jigsaw text file:
All of your files have been encrypted By Jigsaw Your computer was infected with my ransomware. Your files have been encrypted and you won\'t be able to decrypt them without our help.What can I do to get my files back?You can buy our special decryption software, this software will allow you to recover all of your data and remove the ransomware from your computer.The price for the software is $300. Payment can be made in Bitcoin only. How do I pay, where do I get Bitcoin? Purchasing Bitcoin varies from country to country, you are best advised to do a quick google search yourself to find out how to buy Bitcoin. Many of our customers have reported these sites to be fast and reliable: Coinmama - coinbase.com- localbitcoins.com Payment informationAmount: 0.1473766 BTC Bitcoin Address: 17CqMQFeuB3NTzJ2X28tfRmWaPyPQgvoHV
Screenshot of files with “.kwkc” extension added by the ransomware:
Use GridinSoft Anti-Malware to remove Jigsaw 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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