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TrueCrypter Ransomware Disables Processes and Encrypts Files with .Enc

STF-truecrypter-true-crypter-ransomware-ransom-screen

Recently, a ransomware that goes by the name of TrueCrypter surfaced. It can disable several Windows processes to increase its longevity. The ransomware encrypts files with the .enc extension. Around $100 is the sum of money asked as payment for the ransom. RSA-2048 encryption is used. To see ways to remove the ransomware what methods you can try to restore your files, you should thoroughly read this article.

Threat Summary

NameTrueCrypter
TypeRansomware
Short DescriptionThe ransomware encrypts files with the .enc extension and demands a ransom to be paid.
SymptomsNearly 100 unique extensions are targeted by the ransomware and can be encrypted. The ransomware creates an executable file that launches with every start of Windows.
Distribution MethodSpam Emails, Email Attachments
Detection Tool See If Your System Has Been Affected by TrueCrypter

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Malware Removal Tool

User ExperienceJoin Our Forum to Discuss TrueCrypter.
Data Recovery ToolWindows Data Recovery by Stellar Phoenix Notice! This product scans your drive sectors to recover lost files and it may not recover 100% of the encrypted files, but only few of them, depending on the situation and whether or not you have reformatted your drive.

TrueCrypter Ransomware – Distribution Ways

TrueCrypter ransomware is distributed in several ways. One of the most effective ways, as for almost every ransomware nowadays, remains spam emails. These emails distribute the malware as attachments. Malicious code can be inside the body of the emails instead. Opening such emails could be more than enough to infect a computer with the ransomware.

Social media sites and file-sharing services are the other distribution ways that may pose a risk. Malware-related files could be hidden around them. Preventing infection is doable by not downloading, opening or clicking anything suspicious.

TrueCrypter Ransomware – Closer Look

TrueCrypter a new ransomware, and it shouldn’t be confused with the encrypting program TrueCrypt.

The ransomware connects to remote locations and then shutdowns processes of Windows. This is a list of these processes:

  • antilogger
  • netmon
  • taskmgr
  • wireshark
  • charles
  • fiddler
  • reflector
  • sbiectrl

TrueCrypter creates two files in the %AppData%\Microsoft\TrueCrypter\ directory. One of them is an executable file by the name of TrueCrypter.exe. The other is a .xml file of the same name.

You can see a picture of the executable down here:

STF-truecrypter-true-crypter-ransomware-ransom-screen

Image Source: Symantec

After the creation of the files, the ransomware makes entries in the Windows Registry. Those entries are made to ensure the malware will launch with every boot of Windows.

The registry entries are the following:

→HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run\”TrueCrypter” = “%AppData%\Microsoft\TrueCrypter\TrueCrypter.exe”

and the following three afterward,

→HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\policies\system\”EnableLUA” = “0”

→HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\policies\system\”PromptOnSecureDesktop” = “0”

→HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\policies\system\”ConsentPromptBehaviorAdmin” = “0”

Besides the initially created files, a warning message appears on your Desktop, and it reads:

If you see this text, probably your computer got encrypted by TrueCrypter. This means all your important files (documents, images, etc.) are now unaccessible and you will lose them forever unless you pay a sum of money to get your decryption key.

The decryption key uses the RSA-2048 algorithm, impossible to crack. Your files will be lost forever without paying.
If you don’t care about your files, just uninstall this software.
If you lost the application because your antivirus deleted it, or you need help, you can contact us on our email:
[email protected]

(You only have 72 hours before your private key will be destroyed, hurry up if you want to save your files!)

You can complete the payment in two ways including in BitCoins or with an Amazon Gift card. There are details in both the executable and instructions files. The payment amounts to around 100 dollars in BitCoins or 115 dollars if the Amazon method is used.

Paying, no matter what method you use, is NOT advised. Not only your files may remain locked, but you could also give inspiration to the cyber crooks to create more nasty ransomware. If they receive enough money, they also might make a new variant of the current ransomware that is tougher.

The TrueCrypter ransomware locks files with nearly sixty different extensions. RSA-2048 algorithm is implemented as the encryption process. The extensions that the ransomware can lock are:

→.docm, .docx, .dotm, .dotx, .gzip, .html, .index, .java, .jfif, .jpeg, .json, .litcofee, .pages, .php3, .php4, .php5, .7zip, .aspx, .bash, .bookmarks, .class, .config, .csproj, .phps, .phpt, .phtml, .potm, .potx, .ppam, .ppsm, .ppsx, .pptm, .pptx, .prproj, .psm1, .resx, .scpt, .shtml, .sitx, .sldm, .sldx, .splus, .sqlite, .sqlite3, .swift, .tar.gz, .thmx, .tiff, .vcxproj, .xcodeproj, .xhtm, .xhtml, .xlsx, .zipx

The extensions list might be incomplete as this ransomware still perseveres. After file encryption, all files will have the extension .enc – an extension used by the Cryptohasyou Ransomware too.

The TrueCrypter ransomware shuts down so many key processes in Windows, such as the Task Manager, so Shadow Volume Copies might be erased from the operating system as well.

Remove TrueCrypter Ransomware and Restore .enc Encrypted Files

If your PC got infected by the TrueCrypter ransomware, you should have a little experience with removing malware. You should remove the malware as soon as you can as it could encrypt other files over the network or files found on external storage devices if you connect them. The recommended action is for you to remove the ransomware and follow the step-by-step instructions provided down below.

Manually delete TrueCrypter from your computer

Note! Substantial notification about the TrueCrypter threat: Manual removal of TrueCrypter requires interference with system files and registries. Thus, it can cause damage to your PC. Even if your computer skills are not at a professional level, don’t worry. You can do the removal yourself just in 5 minutes, using a malware removal tool.

1. Boot Your PC In Safe Mode to isolate and remove TrueCrypter files and objects.
2. Find malicious files created by TrueCrypter on your PC.
3. Fix registry entries created by TrueCrypter on your PC.

Automatically remove TrueCrypter by downloading an advanced anti-malware program

1. Remove TrueCrypter with SpyHunter Anti-Malware Tool
2. Back up your data to secure it against infections and file encryption by TrueCrypter in the future
3. Restore files encrypted by TrueCrypter
Optional: Using Alternative Anti-Malware Tools

Berta Bilbao

Berta is the Editor-in-Chief of SensorsTechForum. She is a dedicated malware researcher, dreaming for a more secure cyber space.

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