Remove BGJS Ransomware Virus (DECRYPT .bgjs FILES)

remove BGJS ransomware virus and learn how to decrypt or repair files with .bgjs extension (free guide)

BGJS ransomware is a file-encrypting virus

Contents

BGJS ransomware is a file-encrypting virus
- Contents of the _readme.txt note
Ransomware modus operandi
- Ransomware Summary
Ransomware distribution tactics
Remove BGJS ransomware virus for good
Decrypt BGJS files
Frequently Asked Questions

BGJS ransomware is a malicious computer virus that aims to encrypt all files on the system. It is the 863 variant of STOP/DJVU ransomware, and it appends .bgjs file extension to each encrypted file. Once the damage is done, the file icons may appear blank, and computer users can no longer open these files. In addition, the ransomware drops copies of _README.txt ransom note in each affected data directory.

To illustrate how affected files are renamed, see the following example: files previously named as 1.jpg, 2.txt and 3.docx appear as 1.jpg.bgjs, 2.txt.bgjs and 3.docx.bgjs following the attack.

BGJS ransomware aims to take files on the system hostage and expects the computer user to pay a large ransom for the tools required to decrypt .bgjs files. A brief explanation of what has happened to user’s data can be found in the ransom note dropped in each folder.

Contents of the _readme.txt note

The _readme.txt file contains a short letter from the ransomware operators, who explain that encrypted data have been encrypted with strongest encryption methods and unique key. The note assures that the damage can be reversed if the victim follows the criminals’ instructions and pays a ransom.

The note specifies that the demanded ransom amount is $999. The threat actors offer a 50% discount for those who rush to pay up within 72 hours following the computer attack, and in such case, the ransom amount may be set to $499. Although this isn’t mentioned in the ransom note, the criminals usually demand payments through cryptocurrency in order to maintain their privacy and avoid getting tracked down by law enforcement.

To prove their ability to recover files, the criminals ask to send 1 encrypted file to them via provided emails – support@freshingmail.top or datarestorehelpyou@airmail.cc. They promise to send a decrypted version of the file. However, this test file should not contain any valuable information, or the test decryption service may be refused.

The note warns not to look for help from assistants through Youtube and data recovery sites and rely on the ransomware operators only.

The ransom note also provides victim’s personal ID, which is used for identifying the victim and the affected computer. The first 4 digits of this string indicates the version of the ransomware.

Ransomware modus operandi

Ransomware typically infects target computer system through various means such as malicious email attachments, malvertising, malicious downloads, or software vulnerabilities. Once the payload is unleashed, malicious processes encrypt all data on the computer, making it inaccessible to the user.

STOP/DJVU ransomware versions, such as BGJS virus, uses online/offline encryption method to lock files on the system, or a combination of both. While files affected by offline encryption may become decryptable in the future, files locked by online encryption can be restored using data backups only. For more information about encryption types used by this ransomware, see this guide.

The most successful way to restore ransomware-encrypted files is to use data backups, however, many computer users do not have the habit of creating them regularly. In such situation, data recovery becomes complicated.

Besides data encryption, BGJS ransomware uses various stealthy methods to create persistence on infected system. It usually takes hold of user permissions, hijacks legitimate processes to run its malicious tasks without getting detected, modifies Windows HOSTS file to block access to various ransomware help websites online, deletes Volume Shadow Copies and more.

In addition, this ransomware often arrives in tandem with information-stealing Trojans, namely VIDAR, RedLine, and AZORULT. These malware variants are known to steal passwords, browsing-related information, cryptocurrency wallets and other sensitive information, therefore an immediate action is required to get rid of these hazards.

After discovering the said threat on your system, we recommend taking an immediate action to remove BGJS ransomware virus and other related malware. You can find instructions on how to do it below the article. You may want to use a trustworthy and powerful antivirus software for this task, such as INTEGO Antivirus. Additionally, victims should see these currently available STOP/DJVU ransomware decryption solutions.

Ransomware Summary

Name	BGJS Ransomware Virus
Type	Ransomware; Crypto-malware; Virtual Extortion Virus
Family	STOP/DJVU
Encryption type	RSA 2048 + Salsa20
Previous versions	KAAA, BGJS, BGZQ (find full list here)
Version	863rd
Extension	.bgjs
Cybercriminal emails	datarestorehelpyou@airmail.cc and support@freshingmail.top
Additional malware dropped	Azorult, RedLine or Vidar
Damage	The ransomware uses encryption to maliciously modify all files on the PC and marks their original names with .bgjs extension. Ransom notes called as _readme.txt will be dropped in every computer folder. This piece of malware usually drags VIDAR Stealer alongside it and also eliminates VSS from the system. On top of that, it tends to modify Windows HOSTS file to restrict computer user’s access to cybersecurity-related websites online.
Ransom note	_readme.txt
Ransom demand	$499-$999 in Bitcoin
Distribution	Victims often download this ransomware along illegal torrent downloads, cracked software, activators, key generators or tools like KMSPico.
Known software cracks to contain this malware	Corel Draw, Tenorshare 4ukey, Adobe Photoshop, Cubase, Adobe Illustrator, Internet Download Manager, Tally, HP/Epson printer drivers, League of Legends.
Detection names	Trojan:Win32/RiseProStealer.SPDG!MTB (Microsoft), Trojan.GenericKD.72216572 (B) (Emsisoft), HEUR:Trojan.Win32.Strab.pef (Kaspersky), Trojan.GenericKD.72216572 (BitDefender), Trojan.MalPack.GS (Malwarebytes), ML.Attribute.HighConfidence (Symantec) see all detection name variations on VirusTotal
Removal	Remove ransomware and related malware from your PC using trustworthy software like INTEGO Antivirus.

Intego Antivirus for Windows

Award-winning antivirus solution for your PC.

Robust security software that provides robust 24/7 real-time protection, Web Shield that stops online threats/malicious downloads, and Prevention engine that wards off Zero-Day threats. Keep your PC safe and protected against ransomware, Trojans, viruses, spyware and other forms of dangerous programs.

GET IT NOW

60% OFF!

Ransomware distribution tactics

In the current digital landscape, STOP/DJVU ransomware family is considered the most prevalent computer virus targeting average computer users. Its operators are known to push new versions frequently, to be precise, a couple of variants weekly. Recent variants like BGJS and KAAA have been spotted in dubious websites presenting fake software crack downloads.

Cybercriminals behind this malware employ a cunning distribution strategy, embedding malicious payloads within seemingly benign online downloads, often masquerading as software cracks or keygens.

These deceptive practices lure unsuspecting users with promises of free access to licensed software like Adobe Photoshop, Corel Draw, League of Legends, Tenorshare 4ukey, Internet Download Manager, and others. Unfortunately, these deceptive websites adeptly manipulate search engine algorithms to appear in search results’ pages despite serving malicious files. Typically, they require user to push a Download button, which then causes series of redirects to other malicious websites. The final payload often appears as an archived file to prevent basic AV detection.

Additionally, ransomware distributors rely on email spam to reach potential victims. The threat actors leverage impersonation tactics to trick recipients into opening malicious attachments. They often present themselves as representatives of well-known companies, banks or law-enforcement agencies. They also tend to add an extra layer of coercion by using urgent-sounding email subjects, such as fake outstanding invoices or parcel tracking details.

Remove BGJS ransomware virus for good

If your computer has been affected by the described malware, you must remove BGJS ransomware virus without a delay. Manual removal of such malicious software can be challenging, so we usually recommend relying on a trusted antivirus solution, such as INTEGO Antivirus. This AV ensures automatic removal of detected threats and protects your computer from future attacks, as well as from advanced threats in real-time.

Upon successful removal of the malware, affected users should take proactive measures to secure their privacy after the attack. This includes changing passwords associated with the compromised system, resetting Windows HOSTS file back to default, and using data backups to restore encrypted data.

OUR GEEKS RECOMMEND

Our team recommends removing malware using a professional antivirus software.

REMOVE THREATS WITH ROBUST ANTIVIRUS

REMOVE & PROTECT WITH INTEGO

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.

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.

BGJS Ransomware Virus Removal Guidelines

Method 1. Enter Safe Mode with Networking

Step 1. Start Windows in Safe Mode with Networking

Before you try to remove BGJS 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

First of all, turn off your PC. Then press the Power button to start it again and instantly start pressing F8 button on your keyboard repeatedly in 1-second intervals. This launches the Advanced Boot Options menu.
Use arrow keys on the keyboard to navigate down to Safe Mode with Networking option and press Enter.

Instructions for Windows 8/8.1/10/11 users

Open Windows Start menu, then press down the Power button. On your keyboard, press down and hold the Shift key, and then select Restart option.
This will take you to Windows Troubleshoot screen. Choose Troubleshoot > Advanced Options > Startup Settings > Restart. Tip: If you can't find Startup Settings, click See more recovery options.
In Startup Settings, press the right key between F1-F9 to enter Safe Mode with Networking. In this case, it is the F5 key.

Step 2. Remove files associated with the virus

Now, you can search for and remove BGJS 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.

Special Offer

DOWNLOAD AND SCAN

Compatibility: Microsoft Windows
See Full Review

RESTORO is a unique PC Repair Tool which comes with an in-built Avira scan engine to detect and remove spyware/malware threats and uses a patented technology to repair virus damage. The software can repair damaged, missing or malfunctioning Windows OS files, corrupted DLLs, and more. The free version offers a scan that detects issues. To fix them, license key for the full software version must be purchased.

Method 2. Use System Restore

In order to use System Restore, you must have a system restore point, created either manually or automatically.

Step 1. Boot Windows in Safe Mode with Command Prompt

Instructions for Windows XP/Vista/7 users

Shut down your PC. Start it again by pressing the Power button and instantly start pressing F8 button on your keyboard repeatedly in 1-second intervals. You will see Advanced Boot Options menu.
Using arrow keys on the keyboard, navigate down to Safe Mode with Command Prompt option and press Enter.

Instructions for Windows 8/8.1/10/11 users

Launch Windows Start menu, then click the Power button. On your keyboard, press down and hold the Shift key, and then choose Restart option with the mouse cursor.
This will take you to Windows Troubleshoot screen. Choose Troubleshoot > Advanced Options > Startup Settings > Restart. Tip: If you can't find Startup Settings, click See more recovery options.
In Startup Settings, press the right key between F1-F9 to enter Safe Mode with Command Prompt. In this case, press F6 key.

Step 2. Start System Restore process

Wait until system loads and command prompt shows up.
Type cd restore and press Enter, then type rstrui.exe and press Enter. Or you can just type %systemroot%system32restorerstrui.exe in command prompt and hit Enter.
This launches System Restore window. Click Next and then choose a System Restore point created in the past. Choose one that was created before ransomware infection.
Click Yes to begin the system restoration process.

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.

System Mechanic Ultimate Defense

If you're looking for an all-in-one system maintenance suite that has 7 core components providing powerful real-time protection, on-demand malware removal, system optimization, data recovery, password manager, online privacy protection and secure driver wiping technology. Therefore, due to its wide-range of capabilities, System Mechanic Ultimate Defense deserves Geek's Advice approval. Get it now for 50% off. You may also be interested in its full review.

Disclaimer. This site includes affiliate links. We may earn a small commission by recommending certain products, at no additional cost for you. We only choose quality software and services to recommend.

Decrypt BGJS files

Fix and open large BGJS 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.

Create a copy of encrypted file to a separate folder using Copy > Paste commands.
Now, right-click the created copy and choose Rename. Select the BGJS extension and delete it. Press Enter to save changes.
In the prompt asking whether you want to make the changes as file might become unusable, click OK.
Try opening the file.

STOP/DJVU decryption tool usage guide

STOP/DJVU ransomware versions are grouped into old and new variants. BGJS Ransomware Virus is considered the new STOP/DJVU variant, just like KAAA, BGJS, BGZQ (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 BGJS files, follow the given tutorial.

Download the decryption tool from Emsisoft.
Click the little arrow next to your download and choose Show in Folder.
Now, right-click the file and choose Run as Administrator. If asked, enter administrator's password.
In UAC window, click Yes.
Click Yes to agree to software terms in both windows.
The tool will automatically include C:// disk as a location to decrypt. The file recovery tool will prepopulate the locations to scan, including connected data storage drives or network drives. Click Add folder if you wish to add additional locations.
In Options tab, you can choose to keep encrypted file copies. We recommend leaving this option selected, especially if you do not know if the decryption tool will work.
Click Decrypt to start restoring BGJS files. You will see the progress in the Results tab. Here, you can see messages from the tool, such as whether the decryption procedure is successful, or you need to wait for an update.
You might also be informed that online key was used to encrypt your files. In such case, the decryption tool won't work for you, and the only way to recover your files is to use a data backup.

Meanings of decryptor's messages

The BGJS 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 BGJS 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.

Report Internet crime to legal departments

Victims of BGJS 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.

Frequently Asked Questions

✓ How can I open .BGJS files?

You can only open BGJS files if you have the decryption key, or if you were affected by offline encryption type.

✓ How do I know if my files were encrypted with offline or online encryption?

To figure out whether you were affected by offline encryption, please go to C:/SystemID/PersonalID.txt and see if the string inside of it ends in t1. You can also try using Emsisoft Decryptor for STOP/DJVU.

✓ My files contain very important information (family memories). Every tool I used says it is impossible to decrypt. What should I do?

Please follow the guidances provided by the official BGJS decryption tools and believe what they say. If they say it is impossible to decrypt, it really is so. There is no magic tool or human capable of decrypting your files hiding somewhere. Encryption is a technique created to be nearly impossible to decrypt without a special private key (held by the criminals).

✓ I am afraid virus is still in my computer system. What should I do?

We advise scanning with anti-virus, anti-malware, malware removal tools or software like RESTORO to eliminate virus damage on the system. If you do not trust using a single tool, try running one after another. However, we do not recommend keeping several security programs on a computer at once as they can interfere with each other's work.

✓ I saw several Youtube videos suggesting secret decryption tools. Can I trust them?

Beware of fake BGJS decryption tools circulating around the web. Cyber criminals are uploading them to various shady websites, also might be promoting them via suspicious Youtube videos. These programs can infect your computer even more heavily (Trojans, miners, etc.). We suggest being extremely cautious around the web. If there will be an official STOP/DJVU decryption tool available, it will be widely discussed in public media.

Norbert Webb

Norbert Webb is the head of Geek’s Advice team. He is the chief editor of the website who controls the quality of content published. The man also loves reading cybersecurity news, testing new software and sharing his insights on them. Norbert says that following his passion for information technology was one of the best decisions he has ever made. “I don’t feel like working while I’m doing something I love.” However, the geek has other interests, such as snowboarding and traveling.