This guide explains modus operandi of JDYI crypto virus and explains how to remove it from your computer. We also cover possibilities of decrypting your data.

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Like other variants of STOP/DJVU family, JDYI virus’ intention mainly rests on making financial benefits to its developers. The scheme itself is well-thought and designed to rush the victim into unprepared and unthoughtful decisions. For example, the fact that the ransom size changes after 3 days are to urge the user to pay as fast as possible. The developers of this virus also urge you to ‘test’ the decryption mechanism. To do that, you have to send an encrypted file (that is not large and does not contain any supposed valuable information) to one of the provided emails. After some time, the hackers will send it back decrypted – thus showing the supposed validity of their decryption tool. The thought of reaching his files easily also puts pressure on the victim. The cybercriminals also tend to intimidate the affected user and prevent him from using any third-party software such as decryption tools since it just will not cut it and might make files permanently irretrievable.

Do not pay the ransom

No matter the circumstances, you should never meet the criminals’ demands. This is due to a couple of reasons. Firstly, paying the money will escalate a problem, that is already growing by the day. Developers of viruses such as JDYI ransomware are urged to create new variants only then when the money flow is substantial. Since these people are purely profit-driven, not paying them is one of the main social methods that can be used to prevent these situations. Secondly, hackers simply cannot be trusted. Hypothetically, what makes a cybercriminal merciful enough to give back the access to your files if he sees the opportunity to extort you more? There are numerous cases when after infection people get scammed several times. In these cases, if you pay, there is a really high chance of suffering pointless financial loss.

Changes that have been made to your data

In order to resolve the situation regarding ransomware infection, a victim must understand its basic working principles first. Similar to other variants of its family, JDYI file virus uses RSA encryption algorithm to make changes to your files. RSA is a military-grade cryptography algorithm that was created in the 8th decade of the last century. Its main purpose was to ensure safe information transfer. Every classified piece of information could be encrypted – in this process, a unique decryption key is created, that is needed to gain access to the files. First used in the military this crypto algorithm quickly finds its way to private usage. Unfortunately, regaining access to affected files is quite hard, although there are a couple of things you can do. In fact, you need to remove JDYI ransomware from your system completely, since it is known for installing AZORult password-stealing virus. It also might corrupt any files from a backup if you try to connect one without deleting the virus first. For repairing virus damage on the system, download and run RESTORO.

File-encrypting malware distribution methods

When it comes to virus proliferation, there is basically a countless amount of ways by which you could get infected, but they can be categorized in a couple of big groups. Firstly, JDYI virus spreads through downloads from untrustworthy sites and file-sharing platforms like Mediafire, Torrent, zMule, and other. Virus files get attached to a piece of supposedly beneficial software like photoshop programs, games, cracks, software activation tools, or keygens. Once you download and try to install it – the virus tries to breach your system’s security. So, whenever you are considering downloading from an unverified website, keep in mind that doing so exposes you to a cyberattack. The second method that is commonly used by hackers is malspam campaigns. This is a scheme as old as the internet itself, probably. To explain it shortly, hackers tend to get huge amounts of email addresses through website data breaches, adware, and others. Once these email addresses are in criminals’ possession, they start to send deceitful letters to them. These messages might contain various information to provoke interaction from the recipient (clicking a link provided or opening a file attached to it). Once that is done, this ransomware can get into your system and damage it. There are other ways as well. Software bundling might install potentially unwanted apps. It is a practice when certain intrusive or irritating programs are attached to otherwise beneficial software. Adware could install browser hijackers to your system, thus making your default browser and search engine basically unusable. Trojans might trigger chain infections once present in a PC system. This means, that this software is capable of downloading additional malware thus dealing even more extensive damage to the system.

Remove JDYI ransomware safely

As previously mentioned, there are substantial reasons why you should take immediate action to remove JDYI ransomware virus from your PC. If not taken care of, this virus could do even more extensive damage than during the initial infection. To ensure safe JDYI virus removal, we recommend you use trustworthy and verified malware removal software. We also recommend taking the necessary steps to help your system to recover fully after the termination is made. RESTORO is a helpful tool that can let you achieve this. To remove JDYI ransomware, follow these steps: OUR GEEKS RECOMMEND Our team recommends a two-step rescue plan to remove ransomware and other remaining malware from your computer, plus repair caused virus damage to the system: GeeksAdvice.com editors select recommended products based on their effectiveness. We may earn a commission from affiliate links, at no additional cost to you. Learn more. Get INTEGO ANTIVIRUS for Windows to remove ransomware, Trojans, adware and other spyware and malware variants and protect your PC and network drives 24/7. This VB100-certified security software uses state-of-art technology to provide protection against ransomware, Zero-Day attacks and advanced threats, Intego Web Shield blocks dangerous websites, phishing attacks, malicious downloads and installation of potentially unwanted programs. Use INTEGO Antivirus to remove detected threats from your computer. Read full review here. RESTORO provides a free scan that helps to identify hardware, security and stability issues and presents a comprehensive report which can help you to locate and fix detected issues manually. It is a great PC repair software to use after you remove malware with professional antivirus. The full version of software will fix detected issues and repair virus damage caused to your Windows OS files automatically. RESTORO uses AVIRA scanning engine to detect existing spyware and malware. If any are found, the software will eliminate them. Read full review here.

Method 1. Enter Safe Mode with Networking

Before you try to remove JDYI Ransomware Virus virus, you must start your computer in Safe Mode with Networking. Below, we provide the easiest ways to boot PC in the said mode, but you can find additional ones in this in-depth tutorial on our website – How to Start Windows in Safe Mode. Also, if you prefer a video version of the tutorial, check our guide How to Start Windows in Safe Mode on Youtube. Instructions for Windows XP/Vista/7 users Instructions for Windows 8/8.1/10/11 users Now, you can search for and remove JDYI Ransomware Virus files. It is very hard to identify files and registry keys that belong to the ransomware virus, Besides, malware creators tend to rename and change them repeatedly. Therefore, the easiest way to uninstall such type of a computer virus is to use a reliable security program such as INTEGO Antivirus. For virus damage repair, consider using RESTORO.

Method 2. Use System Restore

In order to use System Restore, you must have a system restore point, created either manually or automatically. Instructions for Windows XP/Vista/7 users Instructions for Windows 8/8.1/10/11 users After restoring the system, we recommend scanning the system with antivirus or anti-malware software. In most cases, there won’t be any malware remains, but it never hurts to double-check. In addition, we highly recommend checking ransomware prevention guidelines provided by our experts in order to protect your PC against similar viruses in the future.

Alternative software recommendations

Malwarebytes Anti-Malware Removing spyware and malware is one step towards cybersecurity. To protect yourself against ever-evolving threats, we strongly recommend purchasing a Premium version of Malwarebytes Anti-Malware, which provides security based on artificial intelligence and machine learning. Includes ransomware protection. See pricing options and protect yourself now.

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Decrypt JDYI files

Fix and open large JDYI files easily:

It is reported that STOP/DJVU ransomware versions encrypt only the beginning 150 KB of each file to ensure that the virus manages to affect all files on the system. In some cases, the malicious program might skip some files at all. That said, we recommend testing this method on several big (>1GB) files first.

STOP/DJVU decryption tool usage guide

STOP/DJVU ransomware versions are grouped into old and new variants. JDYI Ransomware Virus is considered the new STOP/DJVU variant, just like BPTO, ISWR, ISZA, BPSM, ZOUU, MBTF, ZNSM (find full list here). This means full data decryption is now possible only if you have been affected by offline encryption key. To decrypt your files, you will have to download Emsisoft Decryptor for STOP DJVU, a tool created and maintained by a genius security researcher Michael Gillespie. Note! Please do not spam the security researcher with questions whether he can recover your files encrypted with online key - it is not possible. In order to test the tool and see if it can decrypt JDYI files, follow the given tutorial.

Meanings of decryptor’s messages

The JDYI decryption tool might display several different messages after failed attempt to restore your files. You might receive one of the following messages: Error: Unable to decrypt file with ID: [example ID] This message typically means that there is no corresponding decryption key in the decryptor’s database. No key for New Variant online ID: [example ID]Notice: this ID appears to be an online ID, decryption is impossible This message informs that your files were encrypted with online key, meaning no one else has the same encryption/decryption key pair, therefore data recovery without paying the criminals is impossible. Result: No key for new variant offline ID: [example ID]This ID appears to be an offline ID. Decryption may be possible in the future. If you were informed that an offline key was used, but files could not be restored, it means that the offline decryption key isn’t available yet. However, receiving this message is extremely good news, meaning that it might be possible to restore your JDYI extension files in the future. It can take a few months until the decryption key gets found and uploaded to the decryptor. We recommend you to follow updates regarding the decryptable DJVU versions here. We strongly recommend backing up your encrypted data and waiting.

Victims of JDYI Ransomware Virus should report the Internet crime incident to the official government fraud and scam website according to their country:

In the United States, go to the On Guard Online website.In Australia, go to the SCAMwatch website.In Germany, go to the Bundesamt für Sicherheit in der Informationstechnik website.In Ireland, go to the An Garda Síochána website.In New Zealand, go to the Consumer Affairs Scams website.In the United Kingdom, go to the Action Fraud website.In Canada, go to the Canadian Anti-Fraud Centre.In India, go to Indian National Cybercrime Reporting Portal.In France, go to the Agence nationale de la sécurité des systèmes d’information.

If you can’t find an authority corresponding to your location on this list, we recommend using any search engine to look up “[your country name] report cyber crime”. This should lead you to the right authority website. We also recommend staying away from third-party crime report services that are often paid. It costs nothing to report Internet crime to official authorities. Another recommendation is to contact your country’s or region’s federal police or communications authority.