The Xro virus belongs to the Xorist ransomware family. Ransomware of such sort encrypts all user’s data on the PC (photos, text files, excel tables, music, videos, etc) and adds its own extension to every file, creating the HOW TO DECRYPT FILES.txt files in each folder which contains the encrypted files.
Xro virus: what is known so far?
☝️ Xro is a Xorist family ransomware malicious agent.
Xro will append its specific .xro extension to every file’s name. For instance, an image named “photo.jpg” will be renamed to “photo.jpg.xro”. In the same manner, the Excel file with the name “table.xlsx” will be changed to “table.xlsx.xro”, and so on.
In every folder with the encoded files, a HOW TO DECRYPT FILES.txt text document will be found. It is a ransom money note. It contains information about the ways of paying the ransom and some other remarks. The ransom note usually contains a description of how to buy the decryption tool from the racketeers. That is basically the scheme of the malefaction.
Xro Summary:
| Name | Xro Virus |
| Ransomware family1 | Xorist ransomware |
| Extension | .xro |
| Ransomware note | HOW TO DECRYPT FILES.txt |
| Detection | Win32/Filecoder.Avaddon.H, TrojanDropper:Win32/BcryptInject.A!MTB, BScope.TrojanRansom.Reveton |
| Symptoms | Your files (photos, videos, documents) have a .xro extension and you can’t open them. |
| Fix Tool | See If Your System Has Been Affected by Xro virus |
The HOW TO DECRYPT FILES.txt document accompanying the Xro malware provides the following discouraging information:
Attention! All your files are encrypted! To restore your files and access them, please send an SMS with the text XXXX to YYYY number. You have N attempts to enter the code. When that number has been exceeded, all the data irreversibly is destroyed. Be careful when you enter the code!
In the image below, you can see what a folder with files encrypted by the Xro looks like. Each filename has the “.xro” extension added to it.
How did Xro ransomware end up on my PC?
There is a huge number of possible ways of ransomware injection.
There are currently three most popular ways for malefactors to have ransomware planted in your system. These are email spam, Trojan introduction and peer networks.
- If you access your mailbox and see letters that look just like notifications from utility services companies, postal agencies like FedEx, Internet providers, and whatnot, but whose addresser is strange to you, be wary of opening those letters. They are most likely to have a malware item enclosed in them. Thus it is even more dangerous to open any attachments that come with letters like these.
- Another option for ransom hunters is a Trojan virus scheme. A Trojan is a program that infiltrates into your PC pretending to be something else. For example, you download an installer for some program you need or an update for some software. However, what is unpacked turns out to be a harmful agent that compromises your data. As the installation wizard can have any name and any icon, you’d better be sure that you can trust the source of the stuff you’re downloading. The best thing is to trust the software companies’ official websites.
- As for the peer networks like torrents or eMule, the threat is that they are even more trust-based than the rest of the Web. You can never know what you download until you get it. So you’d better be using trustworthy websites. Also, it is a good idea to scan the directory containing the downloaded files with the antivirus as soon as the downloading is finished.
How do I get rid of ransomware?
It is crucial to inform you that besides encrypting your files, the Xro virus will most likely deploy Vidar Stealer on your computer to seize your credentials to various accounts (including cryptocurrency wallets). That program can derive your credentials from your browser’s auto-filling data.
How сan I avoid ransomware injection?
Xro ransomware has no endless power, neither does any similar malware.
You can defend your PC from ransomware injection within three easy steps:
- Ignore any emails from unknown senders with unknown addresses, or with content that has nothing to do with something you are waiting for (how can you win in a money prize draw without participating in it?). In case the email subject is likely something you are expecting, check all elements of the dubious letter with caution. A fake email will always contain mistakes.
- Do not use cracked or unknown software. Trojans are often spreaded as an element of cracked software, possibly as a “patch” which prevents the license check. Understandably, potentially dangerous programs are very hard to distinguish from trustworthy ones, because trojans sometimes have the functionality you need. Try to find information on this software product on the anti-malware message boards, but the best solution is not to use such software.
FAQ
🤔 How can I open “.xro” files?Are the “.xro” files accessible?
Unfortunately, no. You need to decipher the “.xro” files first. Then you will be able to open them.
🤔 What should I do to make my files accessible as fast as possible?
It’s good if you have fаr-sightedly saved copies of these important files elsewhere. In case you haven’t, 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.
🤔 What to do if the Xro malware has blocked my PC and I can’t get the activation code.
🤔 What can I do right now?
Some of the blocked data can be found elsewhere.
- If you exchanged your important files via email, you could still download them from your online mail server.
- You might have shared photographs or videos with your friends or relatives. Just ask them to post those pictures back to you.
- If you have initially downloaded any of your files from the Web, you can try to do it again.
- Your messengers, social media pages, and cloud drives might have all those files as well.
- Maybe you still have the needed files on your old computer, a notebook, mobile, flash memory, etc.
USEFUL TIP: You can use file recovery utilities2 to retrieve your lost information since ransomware blocks the copies of your files, deleting the original ones. In the tutorial below, you can see how to recover your files with PhotoRec, but be advised: you won’t be able to do it before you eradicate the virus with an antivirus program.

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