INDRIK Ransomware

Also Known As: INDRIK virus
Distribution: Low
Damage level: Severe

INDRIK ransomware removal instructions

What is INDRIK?

Discovered by Michael Gillespie, INDRIK ransomware (malicious program) is a computer infection designed to encrypt (lock) data stored on computers and blackmail users by demanding ransom payments. The ransomware generates a ransom message within the "# HOW TO DECRYPT YOUR FILES #.html" file, placing it in each folder that contains encrypted files. INDRIK renames each encrypted file by adding the ".INDRIK" extension. For example, "1.jpg" becomes "1.jpg.INDRIK".

Within the "# HOW TO DECRYPT YOUR FILES #.HTML" ransom message, INDRIK's developers state that files have been encrypted using a 'military grade' encryption algorithm. The only way to decrypt encrypted data is to purchase a specific decryption tool from them. According to these cyber criminals, any attempts to decrypt (recover) data using other tools will result in permanent data loss. To receive a decryption tool, INDRIK's victims are encouraged to contact developers via both the and email addresses, by sending a message containing the assigned unique ID or attached "# HOW TO DECRYPT YOUR FILES #.HTML" file. The ransom message (.HTML file) contains a deadline, which at time of research, was just under 267 days. This is supposedly the period within which victims must make contact, however, another deadline of seven days is given - the amount of time victims have to purchase a decryption tool before their data is deleted. The ransom must be paid (decryption tool purchased) by transferring a specific sum of Bitcoins to a cryptocurrency wallet. Information regarding ransom size (and other payment details) is likely to be provided after cyber criminals are contacted via the email addresses provided, however, we do not recommend that you ever contact INDRIK's developers (or other cyber criminals) or purchase their decryption tools/pay any ransom. Research shows that they ignore victims once transactions are made and ransoms are paid. Therefore, most people are scammed and receive no decryption tools or keys. Unfortunately, ransomware developers use cryptography algorithms (symmetric or asymmetric) that generate unique keys. Typically, these are stored on remote servers that are controlled by ransomware developers. Therefore, only they can provide victims with tools or keys required for decryption. There are no tools capable of 'cracking' INDRIK's encryption free of charge. Therefore, the best option is to use an existing data backup and restore files from there.

Screenshot of a message encouraging users to pay a ransom to decrypt their compromised data:

INDRIK decrypt instructions

There are many ransomware-type infections similar to INDRIK including, for example, Boom, Vulston, and Phobos. Most viruses of this type share the same purpose: to block access to data by encryption and blackmail victims by demanding ransom payments (purchase decryption tools/keys). Generally, the main differences are cost of decryption (ransom amount) and cryptography algorithm used to encrypt victims' data. Unfortunately, most of these viruses are impossible to 'crack' unless the ransomware is not fully developed or contains bugs/flaws. Therefore, maintain data regular backups and store them on unplugged storage devices or remote servers. Otherwise, data backups might be encrypted together with the remaining data stored on the computer.

How did ransomware infect my computer?

It is unclear exactly how INDRIK's developers proliferate this computer infection, however, there are several common methods such as spam email campaigns, trojans, untrustworthy software download channels, and fake software updaters. Spam campaigns proliferate ransomware and other threats by sending emails that contain malicious attachments. The main goal of these campaigns is to trick users into opening the attachment, which results in download and installation of one or more viruses. These attachments are usually Microsoft Office documents, PDF files, archive files (such as ZIP, RAR, and so on), executable files, etc. Trojans are malicious programs that are often used to proliferate other infections - if one is installed on your system, it is possible that it also installed INDRIK ransomware. Cyber criminals use untrustworthy software download sources to proliferate infections - various freeware download websites, free file hosting websites, third party software downloaders, Peer-to-Peer (P2P) networks such as torrents, eMule, and so on. In this way, users are often tricked into downloading and installing malicious programs, rather than their chosen software. Fake software updaters infect computers by downloading malicious software, rather than the expected updates/fixes, or by exploiting bugs/flaws of outdated software already installed on the operating system.

Threat Summary:
NameINDRIK virus
Threat TypeRansomware, Crypto Virus, Files locker
SymptomsCan't open files stored on your computer, previously functional files now have a different extension, for example my.docx.locked. A ransom demanding message is displayed on your desktop. Cyber criminals are asking to pay a ransom (usually in bitcoins) to unlock your files.
Distribution methodsInfected email attachments (macros), torrent websites, malicious ads.
DamageAll files are encrypted and cannot be opened without paying a ransom. Additional password stealing trojans and malware infections can be installed together with a ransomware infection.

To eliminate INDRIK virus our malware researchers recommend scanning your computer with Spyhunter.
▼ Download Spyhunter
Free scanner checks if your computer is infected. To remove malware, you have to purchase the full version of Spyhunter.

How to protect yourself from ransomware infections?

Users are often responsible for these computer infections. To keep computers safe, we strongly recommend that you take precautions when browsing the web and downloading, installing, or updating software. Web links or attachments presented in emails received from unknown, suspicious addresses should never be opened or clicked. Software should be downloaded using official and trustworthy channels. Do not use third party software downloaders, installers, unofficial/suspicious websites, and so on - these often include rogue applications that can cause computer infections such as INDRIK ransomware. Keep installed software updated, however, this should be done using implemented functions or tools provided by official developers. Have reputable anti-virus or anti-spyware software installed and keep it enabled at all times - these tools can detect and remove various threats before they do any damage to the system. If your computer is already infected with INDRIK, we recommend running a scan with Spyhunter for Windows to automatically eliminate this ransomware.

Text presented in INDRIK ransomware "# HOW TO DECRYPT YOUR FILES #.html" file :

Dead Line

266 22 12 05
Days Hours Minutes Seconds


What Happened to My Files?
All your files have been encrypted using military grade encryption algorithm.
Any attempt to decrypt or recovery your files else than use will cause permanent damage to your files. This means you will lose them forever.
The only way you can decrypt your files is purchase your unique decryption tool from us.


It is not advised to use third party tools to decrypt, If we find them you, will forever lose your files.

What is Dead Line?
It's the last time that you have the opportunity to communicate with us.

How Can Restore My Files?
For restore your files and return to the normal state, you must send your request to both the address and with the same subject.


Also, in order to further trust us, we are ready to decrypt a single of your file less than 5 megabytes of size for free.

How To Buy Bitcoin??
Top exchange sites:
LocalBitcoins (available in 248 countries)
Coinbase (available in 42 countries)


Online wallet:

More guide:

Screenshot of files encrypted by INDRIK (".INDRIK" extension):

Files encrypted by INDRIK

INDRIK ransomware removal:

Instant automatic removal of INDRIK virus: Manual threat removal might be a lengthy and complicated process that requires advanced computer skills. Spyhunter is a professional automatic malware removal tool that is recommended to get rid of INDRIK virus. Download it by clicking the button below:
▼ DOWNLOAD Spyhunter By downloading any software listed on this website you agree to our Privacy Policy and Terms of Use. Free scanner checks if your computer is infected. To remove malware, you have to purchase the full version of Spyhunter.

Quick menu:

Step 1

Windows XP and Windows 7 users: Start your computer in Safe Mode. Click Start, click Shut Down, click Restart, click OK. During your computer start process, press the F8 key on your keyboard multiple times until you see the Windows Advanced Option menu, and then select Safe Mode with Networking from the list.

Safe Mode with Networking

Video showing how to start Windows 7 in "Safe Mode with Networking":

Windows 8 users: Start Windows 8 is Safe Mode with Networking - Go to Windows 8 Start Screen, type Advanced, in the search results select Settings. Click Advanced startup options, in the opened "General PC Settings" window, select Advanced startup. Click the "Restart now" button. Your computer will now restart into the "Advanced Startup options menu". Click the "Troubleshoot" button, and then click the "Advanced options" button. In the advanced option screen, click "Startup settings". Click the "Restart" button. Your PC will restart into the Startup Settings screen. Press F5 to boot in Safe Mode with Networking.

Windows 8 Safe Mode with networking

Video showing how to start Windows 8 in "Safe Mode with Networking":

Windows 10 users: Click the Windows logo and select the Power icon. In the opened menu click "Restart" while holding "Shift" button on your keyboard. In the "choose an option" window click on the "Troubleshoot", next select "Advanced options". In the advanced options menu select "Startup Settings" and click on the "Restart" button. In the following window you should click the "F5" button on your keyboard. This will restart your operating system in safe mode with networking.

windows 10 safe mode with networking

Video showing how to start Windows 10 in "Safe Mode with Networking":

Step 2

Log in to the account infected with the INDRIK virus. Start your Internet browser and download a legitimate anti-spyware program. Update the anti-spyware software and start a full system scan. Remove all entries detected.

If you cannot start your computer in Safe Mode with Networking, try performing a System Restore.

Video showing how to remove ransomware virus using "Safe Mode with Command Prompt" and "System Restore":

1. During your computer start process, press the F8 key on your keyboard multiple times until the Windows Advanced Options menu appears, and then select Safe Mode with Command Prompt from the list and press ENTER.

Boot your computer in Safe Mode with Command Prompt

2. When Command Prompt mode loads, enter the following line: cd restore and press ENTER.

system restore using command prompt type cd restore

3. Next, type this line: rstrui.exe and press ENTER.

system restore using command prompt rstrui.exe

4. In the opened window, click "Next".

restore system files and settings

5. Select one of the available Restore Points and click "Next" (this will restore your computer system to an earlier time and date, prior to the INDRIK ransomware virus infiltrating your PC).

select a restore point

6. In the opened window, click "Yes".

run system restore

7. After restoring your computer to a previous date, download and scan your PC with recommended malware removal software to eliminate any remaining INDRIK ransomware files.

To restore individual files encrypted by this ransomware, try using Windows Previous Versions feature. This method is only effective if the System Restore function was enabled on an infected operating system. Note that some variants of INDRIK are known to remove Shadow Volume Copies of the files, so this method may not work on all computers.

To restore a file, right-click over it, go into Properties, and select the Previous Versions tab. If the relevant file has a Restore Point, select it and click the "Restore" button.

Restoring files encrypted by CryptoDefense

If you cannot start your computer in Safe Mode with Networking (or with Command Prompt), boot your computer using a rescue disk. Some variants of ransomware disable Safe Mode making its removal complicated. For this step, you require access to another computer.

To regain control of the files encrypted by INDRIK, you can also try using a program called Shadow Explorer. More information on how to use this program is available here.

shadow explorer screenshot

To protect your computer from file encryption ransomware such as this, use reputable antivirus and anti-spyware programs. As an extra protection method, you can use programs called HitmanPro.Alert and EasySync CryptoMonitor, which artificially implant group policy objects into the registry to block rogue programs such as INDRIK ransomware.

Note that Windows 10 Fall Creators Update includes a "Controlled Folder Access" feature that blocks ransomware attempts to encrypt your files. By default, this feature automatically protects files stored in the Documents, Pictures, Videos, Music, Favorites as well as Desktop folders.

Controll Folder Access

Windows 10 users should install this update to protect their data from ransomware attacks. Here is more information on how to get this update and add an additional protection layer from ransomware infections.

HitmanPro.Alert CryptoGuard - detects encryption of files and neutralises any attempts without need for user-intervention:

hitmanproalert ransomware prevention application

Malwarebytes Anti-Ransomware Beta uses advanced proactive technology that monitors ransomware activity and terminates it immediately - before reaching users' files:

malwarebytes anti-ransomware

  • The best way to avoid damage from ransomware infections is to maintain regular up-to-date backups. More information on online backup solutions and data recovery software Here.

Other tools known to remove INDRIK ransomware:

About the author:

Tomas Meskauskas

Tomas Meskauskas - expert security researcher, professional malware analyst.

I am passionate about computer security and technology. I have an experience of over 10 years working in various companies related to computer technical issue solving and Internet security. I have been working as an author and editor for since 2010. Follow me on Twitter and LinkedIn to stay informed about the latest online security threats. Contact Tomas Meskauskas.

PCrisk security portal is brought by a company RCS LT. Joined forces of security researchers help educate computer users about the latest online security threats. More information about the company RCS LT.

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Malware activity

Global virus and spyware activity level today:

Medium threat activity

Increased attack rate of infections detected within the last 24 hours.

QR Code
INDRIK virus QR code
A QR code (Quick Response Code) is a machine-readable code which stores URLs and other information. This code can be read using a camera on a smartphone or a tablet. Scan this QR code to have an easy access removal guide of INDRIK virus on your mobile device.
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Platform: Windows

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