REDCRYPTOAPP Ransomware 🔐 (.REDCRYPTOAPP File) — Removal Guide

The Redcryptoapp virus falls within the ransomware type of malicious agent. Harmful software of such sort encrypts all the data on your PC (images, documents, excel sheets, music, videos, etc) and appends its specific extension to every file, leaving the HOW_TO_RESTORE_FILES.REDCryptoApp.txt files in each folder with the encrypted files.

Redcryptoapp virus: what is known so far?

Redcryptoapp adds its extra .REDCryptoApp extension to every file’s name. For instance, a file entitled “photo.jpg” will be altered to “photo.jpg.REDCryptoApp”. Likewise, the Excel file with the name “table.xlsx” will end up as “table.xlsx.REDCryptoApp”, and so forth.

In every folder with the encrypted files, a HOW_TO_RESTORE_FILES.REDCryptoApp.txt file will be created. It is a ransom money memo. It contains information on the ways of paying the ransom and some other remarks. The ransom note usually contains instructions on how to buy the decryption tool from the racketeers. You can get this decrypting software after contacting Tor website via email. That is how they do it.

Redcryptoapp Overview:

Name Redcryptoapp Virus
Extension .REDCryptoApp
Ransomware note HOW_TO_RESTORE_FILES.REDCryptoApp.txt
Contact Tor website
Detection Trojan:Win32/Startpage Virus Removal, Trojan:Win32/Alureon.BJ Virus Removal, Backdoor:Win32/Zonebac!F Virus Removal
Symptoms Your files (photos, videos, documents) have a .REDCryptoApp extension and you can’t open them.
Fix Tool See If Your System Has Been Affected by Redcryptoapp virus

In the screenshot below, you can see what a directory with files encrypted by the Redcryptoapp looks like. Each filename has the “.REDCryptoApp” extension added to it.

Redcryptoapp Virus - encrypted .REDCryptoApp files

An example of encrypted .REDCryptoApp files.

How did Redcryptoapp ransomware end up on my PC?

There is a huge number of possible ways of ransomware infiltration.

Nowadays, there are three most exploited ways for hackers to have ransomware settled in your system. These are email spam, Trojan introduction and peer-to-peer networks.

  • Another option for ransom hunters is a Trojan virus model. A Trojan is an object that gets into your computer disguised as something else. For example, you download an installer for some program you want or an update for some service. However, what is unpacked reveals itself a harmful program that encrypts your data. As the installation file can have any name and any icon, you’d better be sure that you can trust the source of the things you’re downloading. The best thing is to trust the software developers’ official websites.
  • As for the peer networks like torrents or eMule, the danger 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 resources. 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 ransomware?

It is crucial to inform you that besides encrypting your files, the Redcryptoapp virus will most likely install Vidar Stealer on your machine to get access to credentials to different accounts (including cryptocurrency wallets). That program can extract your credentials from your browser’s auto-filling cardfile.

How do I avert ransomware infection?

Redcryptoapp ransomware has no superpower, neither does any similar malware.

You can defend your computer from its attack within three easy steps:

  • Ignore any letters from unknown mailers with unknown addresses, or with content that has likely no connection to something you are waiting for (how can you win in a lottery without participating in it?). If the email subject is likely something you are expecting, scrutinize all elements of the dubious letter with caution. A hoax letter will surely have a mistake.
  • Do not use cracked or unknown software. Trojans are often distributed as an element of cracked software, possibly under the guise of “patch” to prevent the license check. But potentially dangerous programs are very hard to tell from trustworthy software, because trojans may also have the functionality you need. You can try searching for information about this software product on the anti-malware message boards, but the best solution is not to use such software.

FAQ

🤔 How can I open “.REDCryptoApp” files?Can I somehow access “.REDCryptoApp” files?

There’s no way to do it, unless the files “.REDCryptoApp” files are decrypted.

🤔 The encrypted files are very important to me. How can I decrypt them quickly?

Hopefully, you have made a copy of those important files. Otherwise, you might try to employ System Restore. The only question is whether you have saved any Restore Points that would be helpful now. The rest of the methods require patience.

🤔 What actions should I take if the Redcryptoapp virus has blocked my PC and I can’t get the activation key.

🤔 And what should I do now?

Many of the encrypted files might still be at your disposal

  • If you exchanged your critical files via email, you could still download them from your online mailbox.
  • You may have shared images 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 Internet, you can try doing it again.
  • Your messengers, social media pages, and cloud storage might have all those files as well.
  • Maybe you still have the needed files on your old computer, a notebook, mobile, external storage, etc.

HINT: You can employ data recovery programs1 to retrieve your lost information since ransomware blocks the copies of your files, removing the original ones. In the video below, you can see how to recover your files with PhotoRec, but remember: you can do it only after you eradicate the virus with an antivirus program.

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Brendan Smith

References

  1. Here are Best Data Recovery Software Of 2024.

About the author

Brendan Smith

Cybersecurity analyst covering malware families, suspicious files, and detection alerts. Brendan focuses on clear explanations of what a warning means, when it may be a false positive, and which cleanup steps are appropriate.

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