This article contributes to removing .siferi file virus from infected machines and restoring corrupted files.
The .sifreli file virus is a malware of ransomware type. Ransomware is computer infection that utilizes strong cipher algorithms to modify original code of particular data leaving it completely unworkable until a ransom is paid to cyber criminals. The name of this specific data locker ransomware derives from the malicious file extension it appends to each corrupted file – .sifreli. Another trait of .sifreli file virus is a ransom note file called !!! SISTEMINIZ HACKLENDI !!! that is dropped and displayed on the PC screen. At this point, it seems that the ransomware is targeting Turkish speaking users which does not exclude its distribution worldwide.
Threat Summary
| Name | .sifreli File Virus |
| Type | Ransomware |
| Short Description | The ransomware encrypts valuable files on your computer and displays a ransom message afterward. |
| Symptoms | The ransomware will encrypt your files, show up a ransom message and demand a ransom payment for file recovery. |
| Distribution Method | Spam Emails, Email Attachments |
| Detection Tool |
See If Your System Has Been Affected by malware
Download
Malware Removal Tool
|
User Experience | Join Our Forum to Discuss .sifreli File Virus. |
| Data Recovery Tool | Windows Data Recovery by Stellar Phoenix Notice! This product scans your drive sectors to recover lost files and it may not recover 100% of the encrypted files, but only few of them, depending on the situation and whether or not you have reformatted your drive. |
.sifreli Ransomware – Delivery
The ransomware infection can be triggered only by single file once it is running on the system. However, this file is usually distributed being embedded or hidden in other files like zip archives, documents, PDFs and other. Such malicious files can be attached to emails or send via social media channels. Hackers like to use email addresses and subjects that will entice you to read the email and open the attachment. Once you do it, the corrupted file will deliver the ransomware. The malicious ransomware payload may also be injected into the code of web pages and then spread as links to those pages. These sites may be cologne versions of well-known websites of agencies and services like a local mobile telephone operator, your bank, and online stores. Again phishing emails and social media channels, as well as online advertisements, are likely to be used for distribution of corrupted links.
.sifreli File Virus – Detailed Overview
The word “sifreli” is Turkish and means encrypted in English and that is also the extension used by the ransomware for the encrypted files. The infection begins when the ransomware payload is running on the system. As .sifreli file virus is believed to be programmed to perform various malicious activities, it is possible to drop and create additional malware files in following Windows folders:
- %Temp%
- %Roaming%
- %UserProfile%
- %AppData%
The threat may spawn various processes in order to remain undetected by installed security tools during the encryption process. The removal process may be a tricky task as .sifreli ransomware has the functionality to create new values in Windows Registry to ensure its permanent presence on the system. Registry keys Run and RunOnce probably have added malicious values that allow the ransomware to display its ransom message once it encrypts files.
The message is written in Turkish and is being displayed as an annoying pop-up window, which is not possible to be closed. Below you can see the full message:
!!! SISTEMINIZ HACKLENDI !!!
Merhabalar,
Ben sistem açıklarını araştırıp bulan ve bu şekilde para kazanan bir sistem mühendisiyim. Şirketinizin sistemlerinde bir açık buldum ve sisteminizi hackledim. Şirketinizle ilgili bütün bilgilerinizi ele geçirdim ve sisteminizdeki ayrıca ağınızdaki tüm verileri şifreledim. Şayet bu bilgileri geri almak isterseniz ve şifreyi sabrı almak için benimle iletişime geçiniz..
e-mail: muhendis@mail.ua
Aksi taktirde ele geçirilen bilgiler internet ortamında yayınlanacaktır.
Encrypted Session Key: A7198E 24182288171396F8C 85 F228D4C FD1014E F4E 06 F8589F5236ADE D28E 34F4574838 L F61CF9352ADE55777539007D62729A7B8CF 1700154E 070056E 786746413ABF829508C4F
With the help of an automated translator it becomes clear that in English .sifreli crypto virus informs its victims the following:
Hello,
I am a system engineer who searches for system exploits and earns money in this way. I found an open in your company’s systems, and I hacked your system. I’ve got all your information about your company, and I’ve also encrypted all the data on your system. If you want to get this information back, and you get the patience, please contact me.
E-mail: muhendis@mail.ua
Otherwise, the captured information will be published on the internet.
Encrypted Session Key: A7198E 24182288171396F8C 85 F228D4C FD1014E F4E 06 F8589F5236ADE D28E 34F4574838 L F61CF9352ADE55777539007D62729A7B8CF 1700154E 070056E 786746413ABF829508C4F
The ransomware creator doesn’t state what the ransom amount is but only provides email for contact. For the sake of your security, it is better to avoid contacting the bad guy at muhendis@mail.ua and proceed with the ransomware solution by reading the article to the end.
.sifreli File Virus – Data Encryption
As .sifreli file virus is a data locker ransomware, its primary purpose is to corrupt files stored on the infected computer. Basically, this threat targets files that are likely to contain personal information for which you may be willing to pay money. Thus, all your documents, photos, images, projects, archives, music, videos, text files, and databases are likely to be encrypted and renamed with the malicious file extension .sifreli. The encryption is believed to be performed via strong cipher algorithms like AES and RSA so data cannot be decrypted that easy. However, security experts are currently analyzing .sifreli ransomware samples and hopefully, they will crack its code and release freely available decryptor. Meanwhile, once you remove all malicious files created on the PC by the ransomware and backup all encrypted files you can try the help of alternative data recovery solutions. In step Restore files encrypted by .sifreli file virus from our full removal and recovery instructions you can find more information on data restore process.
Remove .sifreli File Virus and Restore Files
Considering all devastating consequences after .sifreli ransomware infection, there is no doubt that all files and objects associated with the threat should be removed as soon as possible. Otherwise, your system remains extremely vulnerable and each new file will be encrypted at the moment you create it. The removal process is explained in a step-by-step guide below, and for best results, security experts recommend the help of anti-malware tool.
Gergana Ivanova
Highly motivated writer with 5+ years of experience writing for ransomware, malware, adware, PUPs, and other cybersecurity-related issues. As a writer, I strive to create content that is based on thorough technical research. I find joy in the process of creating articles that are easy to understand, informative, and useful. Follow me on Twitter (@IRGergana) for the latest in the field of computer, mobile, and online security.
Follow Me:
- Step 1
- Step 2
- Step 3
- Step 4
- Step 5
Step 1: Scan for .sifreli File Virus with SpyHunter Anti-Malware Tool
Ransomware Automatic Removal - Video Guide
Step 2: Uninstall .sifreli File Virus and related malware 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. To do that:
Follow the instructions above and you will successfully delete most unwanted and malicious programs.
Step 3: Clean any registries, created by .sifreli File Virus on your computer.
The usually targeted registries of Windows machines are the following:
- HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\Run
- HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run
- HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\RunOnce
- HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\RunOnce
You can access them by opening the Windows registry editor and deleting any values, created by .sifreli File Virus there. This can happen by following the steps underneath:
Tip: To find a virus-created value, you can right-click on it and click "Modify" to see which file it is set to run. If this is the virus file location, remove the value.
Before starting "Step 4", please boot back into Normal mode, in case you are currently in Safe Mode.
This will enable you to install and use SpyHunter 5 successfully.
Step 4: Boot Your PC In Safe Mode to isolate and remove .sifreli File Virus
Step 5: Try to Restore Files Encrypted by .sifreli File Virus.
Method 1: Use STOP Decrypter by Emsisoft.
Not all variants of this ransomware can be decrypted for free, but we have added the decryptor used by researchers that is often updated with the variants which become eventually decrypted. You can try and decrypt your files using the instructions below, but if they do not work, then unfortunately your variant of the ransomware virus is not decryptable.
Follow the instructions below to use the Emsisoft decrypter and decrypt your files for free. You can download the Emsisoft decryption tool linked here and then follow the steps provided below:
1 Right-click on the decrypter and click on Run as Administrator as shown below:
2. Agree with the license terms:
3. Click on "Add Folder" and then add the folders where you want files decrypted as shown underneath:
4. Click on "Decrypt" and wait for your files to be decoded.
Note: Credit for the decryptor goes to Emsisoft researchers who have made the breakthrough with this virus.
Method 2: Use data recovery software
Ransomware infections and .sifreli File Virus 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.
Simply click on the link and on the website menus on the top, choose Data Recovery - Data Recovery Wizard for Windows or Mac (depending on your OS), and then download and run the tool.
.sifreli File Virus-FAQ
What is .sifreli File Virus Ransomware?
.sifreli File Virus 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 algorithms 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.
What Does .sifreli File Virus Ransomware Do?
Ransomware in general is a malicious software that is designed to block access to your computer or files until a ransom is paid.
Ransomware viruses can also damage your system, corrupt data and delete files, resulting in the permanent loss of important files.
How Does .sifreli File Virus Infect?
Via several ways..sifreli File Virus Ransomware infects computers by being sent via phishing emails, 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.
Another way you may become a victim of .sifreli File Virus 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 ..sifreli File Virus files?
You can't without a decryptor. At this point, the ..sifreli File Virus files are encrypted. You can only open them once they are decrypted using a specific decryption key for the particular algorithm.
What to Do If a Decryptor Does Not Work?
Do not panic, and backup the files. If a decryptor did not decrypt your ..sifreli File Virus files successfully, then do not despair, because this virus is still new.
Can I Restore "..sifreli File Virus" Files?
Yes, sometimes files can be restored. We have suggested several file recovery methods that could work if you want to restore ..sifreli File Virus files.
These methods are in no way 100% guaranteed that you will be able to get your files back. But if you have a backup, your chances of success are much greater.
How To Get Rid of .sifreli File Virus Virus?
The safest way and the most efficient one for the removal of this ransomware infection is the use a professional anti-malware program.
It will scan for and locate .sifreli File Virus ransomware and then remove it without causing any additional harm to your important ..sifreli File Virus files.
Can I Report Ransomware to Authorities?
In case your computer got infected with a ransomware infection, you can report it to the local Police departments. It can help authorities worldwide track and determine the perpetrators behind the virus that has infected your computer.
Below, we have prepared a list with government websites, where you can file a report in case you are a victim of a cybercrime:
Cyber-security authorities, responsible for handling ransomware attack reports in different regions all over the world:
Germany - Offizielles Portal der deutschen Polizei
United States - IC3 Internet Crime Complaint Centre
United Kingdom - Action Fraud Police
France - Ministère de l'Intérieur
Italy - Polizia Di Stato
Spain - Policía Nacional
Netherlands - Politie
Poland - Policja
Portugal - Polícia Judiciária
Greece - Cyber Crime Unit (Hellenic Police)
India - Mumbai Police - CyberCrime Investigation Cell
Australia - Australian High Tech Crime Center
Reports may be responded to in different timeframes, depending on your local authorities.
Can You Stop Ransomware from Encrypting Your Files?
Yes, you can prevent ransomware. The best way to do this is to ensure your computer system is updated with the latest security patches, use a reputable anti-malware program and firewall, backup your important files frequently, and avoid clicking on malicious links or downloading unknown files.
Can .sifreli File Virus Ransomware Steal Your Data?
Yes, in most cases ransomware will steal your information. It is a form of malware that steals data from a user's computer, encrypts it, and then demands a ransom in order to decrypt it.
In many cases, the malware authors or attackers will threaten to delete the data or publish it online unless the ransom is paid.
Can Ransomware Infect WiFi?
Yes, ransomware can infect WiFi networks, as malicious actors can use it to gain control of the network, steal confidential data, and lock out users. If a ransomware attack is successful, it could lead to a loss of service and/or data, and in some cases, financial losses.
Should I Pay Ransomware?
No, you should not pay ransomware extortionists. Paying them only encourages criminals and does not guarantee that the files or data will be restored. The better approach is to have a secure backup of important data and be vigilant about security in the first place.
What Happens If I Don't Pay Ransom?
If you don't pay the ransom, the hackers may still have access to your computer, data, or files and may continue to threaten to expose or delete them, or even use them to commit cybercrimes. In some cases, they may even continue to demand additional ransom payments.
Can a Ransomware Attack Be Detected?
Yes, ransomware can be detected. Anti-malware software and other advanced security tools can detect ransomware and alert the user when it is present on a machine.
It is important to stay up-to-date on the latest security measures and to keep security software updated to ensure ransomware can be detected and prevented.
Do Ransomware Criminals Get Caught?
Yes, ransomware criminals do get caught. Law enforcement agencies, such as the FBI, Interpol and others have been successful in tracking down and prosecuting ransomware criminals in the US and other countries. As ransomware threats continue to increase, so does the enforcement activity.
About the .sifreli File Virus Research
The content we publish on SensorsTechForum.com, this .sifreli File Virus how-to removal guide included, is the outcome of extensive research, hard work and our team’s devotion to help you remove the specific malware and restore your encrypted files.
How did we conduct the research on this ransomware?
Our research is based on an independent investigation. We are in contact with independent security researchers, and as such, we receive daily updates on the latest malware and ransomware definitions.
Furthermore, the research behind the .sifreli File Virus ransomware threat is backed with VirusTotal and the NoMoreRansom project.
To better understand the ransomware threat, please refer to the following articles which provide knowledgeable details.
As a site that has been dedicated to providing free removal instructions for ransomware and malware since 2014, SensorsTechForum’s recommendation is to only pay attention to trustworthy sources.
How to recognize trustworthy sources:
- Always check "About Us" web page.
- Profile of the content creator.
- Make sure that real people are behind the site and not fake names and profiles.
- Verify Facebook, LinkedIn and Twitter personal profiles.