Remove Sigrun Virus (.sigrun Files Ransomware)

Sigrun Virus – Details

The Sigrun mean a ransomware-type infection. Sigrun was elaborated particularly to encrypt all major file types. Once the file is encrypted people are not able to use them. Sigrun adds the “.sigrun” extension for each file encrypted by it. For example, the file “myphoto.jpg“, once encrypted by Sigrun, will be renamed into “myphoto.jpg.sigrun“. As quickly as the encryption is completed, Sigrun places a special text file into every folder containing the encrypted data.

The message given by Sigrun text file asking for the ransom is definitely the like the statements given by other ransomware representatives. 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 kind of cryptography mechanism applied by Sigrun is still not properly examined. Still, it is definitely certain that each victim may be given the specific decryption key, which is absolutely distinct. It is difficult to bring back the files without the key available.

Another technique of Sigrun is that the victims cannot gain access to the key. The key is kept on a specific server run by the frauds connected with Sigrun ransomware. To get the key and recover the important information people have to pay the ransom.

Nonetheless, regardless of the asked for quantity, people need to stay away from paying the ransom. Cyber frauds are unfair, so they tend to completely disregard 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 result and people simply lose their money for nothing.

We strongly advise 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 Sigrun ransomware and to recover the information data for free. Hence, the only right decision is to recover the lost information from the available backup.

Virus Summary

Name	Sigrun Ransomware
File Extension	.sigrun
Type	Ransomware
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 sigrun extension to all the files modified by it.
Distribution Method	Spam Emails, Email Attachments
Removal Tool	GridinSoft Anti-Malware

Bear in mind that the internet is now overwhelmed with threats that look comparable to Sigrun ransomware. Harmful programs of such kind are typically elaborated to encrypt crucial information and to set forth the demand before the user to pay the ransom. The peculiarity of all such ransomware threats is that all apply a similar algorithm to generate the unique 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 simply not feasible. The only method to prevent the loss of your crucial files is to regularly create backups of your important information.

Remember 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 Memory Stick or external disk drive 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 along with other files, so it’s absolutely not a good storage location.

How did ransomware infect my computer?

There are numerous methods used by online scams to distribute Sigrun virus. Even though it is uncertain how precisely Sigrun injects your computer, there are some leaks through which it may penetrate the system:

• integration with third-party software application, especially freeware;
• spam emails from unidentified senders;
• websites rendering free hosting services;
• pirated peer-to-peer (P2P) downloads.

Often Sigrun virus might exist as some legitimate software application, for example, in the pop-ups instructing users to implement some crucial software application updates. This is the common technique used by online scams to persuade people into downloading and installing Sigrun infection manually, by means of their direct participation in the installation process.

Additionally, the criminals might describe different e-mail spam techniques to inject harmful codes into Windows PC. So, they may refer to to sending unsolicited spam emails with tricky notices promoting users to download the attachments or click on certain download links, for example, the ones motivating users to open some receipts, documents, tax reports or invoices.

Needless to mention, opening such files or clicking on such dangerous links may seriously harm the system. Fictitious Adobe Flash Player update informs may result in Sigrun virus injection. When it comes to the cracked software, these illegally downloaded programs may also consist of harmful codes leading to Sigrun secret installation. Lastly, injection of Sigrun may take place by means of Trojans that covertly get injected into the system and install malicious utilities without the user’s approval.

Is there any way to prevent the injection of Sigrun ransom virus?

Even though there is no 100% guarantee to avoid your system from getting infected, there are some pieces of recommendations we want to show with you. First of all, be very careful when you surf the web and particularly while downloading totally free programs. Stay 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 consist of other unwanted utilities in the package, so they may be harmful. Ensure that your current anti-virus and your entire OS is always appropriately updated.

Obviously, downloading pirated software is illegal and may lead to necessary damage to be made for your PC. For this reason, stay away from downloading cracked software. You are also strongly encouraged to reconsider your existing security software and potentially switch to another security solution that can render much better services of protecting your computer.

Below please find the quotation from the Sigrun text file:

~~~~~~SIGRUN RANSOMWARE~~~~~~~~~

Dear user, all your important files have been encrypted!
Don\'t worry! Your files still can be restored by us!

In order to restore it you need to contact with us via e-mail.
sigrun_decryptor@protonmail.ch
As a proof we will decrypt 3 files for free!

Please, attach this to your message: -

Screenshot of files with “.sigrun” extension added by the ransomware:

Use GridinSoft Anti-Malware to remove Sigrun ransomware from your computer

1.Download GridinSoft Anti-Malware.

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

  GridinSoft Anti-Malware

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.