The Backjohn virus falls within the Phobos ransomware family. A harmful program of such sort encrypts all the data on your PC (images, documents, excel tables, music, videos, etc) and adds its own extension to every file, creating the info.txt files in every directory with the encrypted files.
What is known about the Backjohnvirus?
âïž A strictly correct designation for the Backjohn would be âa Phobos family ransomware malicious agentâ.
The scheme of renaming is the following: id[xxxxx].[contact_email].BACKJOHN. As a part of encryption, a file named, for instance, âreport.docxâ will be turned into âreport.docx.id[9ECFA84E-3143].[[email protected]].BACKJOHNâ.
In each directory containing the encoded files, a info.txt text document will be created. It is a ransom money memo. Therein you can find information on the ways of contacting the racketeers and some other information. The ransom note usually contains a description of how to purchase the decryption tool from the ransomware developers. You can obtain this decrypting software after contacting [email protected] via email. That is basically the scheme of the felony.
Backjohn summary:
| Name | Backjohn Virus |
| Ransomware family1 | Phobos ransomware |
| Extension | .BACKJOHN |
| Ransomware note | info.txt |
| Contact | [email protected] |
| Detection | MSIL/GenKryptik.GGWL, Doina.48214, Win32:Teerac-BX [Trj] |
| Symptoms | Your files (photos, videos, documents) get a .BACKJOHN extension and you canât open them. |
| Fix Tool | See If Your System Has Been Affected by Backjohn virus |
The info.txt document accompanying the Backjohn malware provides the following discouraging information:
!!!All of your files are encrypted!!! To decrypt them send e-mail to this address: [email protected]. If we don\'t answer in 24h., send e-mail to this address: [email protected]
In the picture below, you can see what a directory with files encrypted by the Backjohn looks like. Each filename has the â.BACKJOHNâ extension added to it.
How did my machine catch Backjohn ransomware?
There are plenty of possible ways of ransomware injection.
There are currently three most exploited methods for hackers to have the Backjohn virus planted in your system. These are email spam, Trojan introduction and peer-to-peer networks.
If you access your mailbox and see letters that look just like notifications from utility services providers, delivery agencies like FedEx, Internet providers, and whatnot, but whose mailer is unknown to you, be wary of opening those letters. They are very likely to have a malicious item enclosed in them. Thus it is even more dangerous to open any attachments that come with emails like these.
As for the peer networks like torrents or eMule, the threat is that they are even more trust-based than the rest of the Internet. You can never guess what you download until you get it. So youâd better be using trustworthy websites. Also, it is a good idea to scan the folder containing the downloaded objects with the anti-malware utility as soon as the downloading is finished.
How do I get rid of the Backjohn virus?
It is important to inform you that besides encrypting your data, the Backjohn virus will most likely deploy the Azorult Spyware on your computer to seize your credentials to different accounts (including cryptocurrency wallets). That spyware3 can extract your logins and passwords from your browserâs auto-filling data.
Sometimes tamperers would unblock several of your files to prove that they indeed have the decryption tool. Since Backjohn virus is a relatively new ransomware, anti-malware engineers have not yet found a way to undo its work. Nevertheless, the decryption tools are constantly upgraded, so the solution may soon be available.
Sure thing, if the criminals succeed in encoding victimâs essential data, the desperate person will probably comply with their demands. However, paying a ransom does not necessarily mean that youâre getting your blocked information back. It is still risky. After getting the money, the racketeers may deliver a wrong decryption code to the victim. There were reports of racketeers just disappearing after getting the money without even bothering to reply.
The best safety measure against ransomware is to have a system restore point or the copies of your critical files in the cloud disk or at least on an external storage. Surely, that might be not enough. Your most crucial thing could be that one you were working upon when it all went down. But at least it is something. It is also advisable to scan your drives with the anti-malware utility after the OS restoration.
Backjohn is not the only ransomware of its kind, since there are other specimens of ransomware out there that act in the same manner. For instance, Goaq, Qotr, Coaq, and some others. The two major differences between them and the Backjohn are the ransom amount and the method of encryption. The rest is almost identical: files become encrypted, their extensions changed, ransom notes are created in every directory containing encrypted files.
Some fortunate users were able to decode the blocked files with the help of the free software provided by anti-ransomware experts. Sometimes the racketeers mistakenly send the decoding code to the wronged in the ransom note. Such an epic fail allows the user to restore the files. But naturally, one should never expect such a chance. Remember, ransomware is a banditsâ tool to pull the money out of their victims.
How Ńan I avert ransomware injection?
Backjohn ransomware has no superpower, so as any similar malware.
You can protect your system from ransomware infiltration within three easy steps:
- Ignore any emails from unknown senders with strange addresses, or with content that has likely no connection to something you are expecting (can you win in a lottery without participating in it?). If the email subject is more or less something you are expecting, check all elements of the dubious letter carefully. A hoax letter will surely have mistakes.
- Do not use cracked or untrusted software. Trojans are often shared as an element of cracked software, possibly under the guise of âpatchâ to prevent the license check. Understandably, potentially dangerous programs are very hard to tell from trustworthy ones, as trojans may also have the functionality you need. Try searching for information about this software product on the anti-malware message boards, but the optimal way is not to use such software.
Reasons why I would recommend GridinSoft4
Download Removal Tool.
Run the setup file.
Press âInstallâ button.
Once installed, Anti-Malware will automatically run.
Wait for the Anti-Malware scan to complete.
Click on âClean Nowâ.
FAQ
đ€ Is it possible to open â.BACKJOHNâ files?
Negative. That is why ransomware is so frustrating. Until you decode the â.BACKJOHNâ files you will not be able to access them.
đ€ I really need to decrypt those â.BACKJOHNâ files ASAP. How can I do that?
Hopefully, you have made a copy of those important files. In case you havenât, there is still a chance that you do have a Restore Point from some time ago to roll back the whole system to the moment when it had no virus yet, but already had your files. There are other ways to beat ransomware, but they take time.
đ€ What to do if the Backjohn virus has blocked my PC and I canât get the activation key.
đ€ What could help the situation right now?
Some of the blocked files can be located elsewhere.
- If you sent or received your important files through email, you could still download them from your online mail server.
- You might have shared photographs or videos with your friends or family members. Simply ask them to send those images back to you.
- If you have initially got any of your files from the Web, you can try to do it again.
- Your messengers, social networks pages, and cloud disks might have all those files as well.
- It might be that you still have the needed files on your old PC, a notebook, mobile, external storage, etc.
HINT: You can use data recovery programs6 to get your lost data back since ransomware arrests the copies of your files, removing the original ones. In the tutorial below, you can learn how to recover your files with PhotoRec, but be advised: you can do it only after you remove the ransomware itself with an antivirus program.
Also, you can contact the following governmental fraud and scam sites to report this attack:
- In the United States: On Guard Online;
- In Canada: Canadian Anti-Fraud Centre;
- In the United Kingdom: Action Fraud;
- In Australia: SCAMwatch;
- In New Zealand: Consumer Affairs Scams;
- In France: Agence nationale de la sĂ©curitĂ© des systĂšmes dâinformation;
- In Germany: Bundesamt fĂŒr Sicherheit in der Informationstechnik;
- In Ireland: An Garda SĂochĂĄna;
To report the attack, you can contact local executive boards. For instance, if you live in USA, you can have a talk with FBI Local field office, IC3 or Secret Service.

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