New CryptoLocker “en_files.txt” Virus Remove It and Restore Encrypted Files - How to, Technology and PC Security Forum | SensorsTechForum.com
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New CryptoLocker “en_files.txt” Virus Remove It and Restore Encrypted Files

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cryptolocker-wallpaper-malicious-sensorstechforum-com-new-en_files-txt“Your files are locked !.txt” – this is what the victims of one of the first ransomware viruses ever to exist see after their computers have been attacked and their files are encrypted. CryptoLocker has stopped infecting users and many thought the ransomware was dead. However, there have been many copycats of the malware that proved us wrong by releasing yet another copied iteration of this ransomware. Being classic and all, the copycat virus named PCLock that pretends to be cryptolocker leaves behind two text files – one containing the ransom note “ Your Files Are Locked !.txt” and one containing the list of files encrypted by the virus, called “en_files.txt”. The Cryptolocker copycat malware this time gives approximately 120 hours to pay the ransom to a custom Bitcoin address and demands 0.65 BTC. Anyone who has been infected by this version of CryptoLocker should immediately focus on removing the malicious executable related to CryptoLocker copycat and trying to restore the encrypted files with alternative methods until researchers discover a solution for free decryption.

Threat Summary

NamePCLock
TypeRansomware
Short DescriptionThe CryptoLocker copycat malware is actually a variant of PCLock and encrypts users files using an encryption algorithm, making direct decryption possible only via a unique decryption key available to the cyber-criminals.
SymptomsThe user may witness ransom notes and “instructions” linking to an e-mail address and Bitcoin wallet for payment. Deadline given for payment.
Distribution MethodVia an Exploit kit, Dll file attack, malicious JavaScript or a drive-by download of the malware itself in an obfuscated manner.
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User ExperienceJoin Our Forum to Discuss PCLock.
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.

More Information about PCLock CryptoLocker

The Distribution and Infectiono of PCLock Cryptolocker

For the distribution of the PCLock imitation of CryptoLocker, the same strategy as the older version may have been used. The virus may use one of the following methods:

  • Infection via a malicious URL spam.
  • Infect through malicious that have JavaScript or Exploit Kit coded to remotely download the malicious executable.

The malicious URLs or files may be spread via e-mails that are of a deceitful character and attept to convince users to click on the attachment. Example subjects may be:

  • PayPal receipt.
  • eBay Invoice.
  • Canceled account.
  • Suspended payment.
  • Completed purchase.

These type of soc-eng (social engineering) attacks are created with the one and only purpose to convince users into clicking on the attachment and once this is done, the exploit kit may download the payload of PClock’s Crytolocker imitation iteration on the following locations:

→ %AppData%:\WinDsk\sysras.exe
%AppData%\WinDsk\windskwp.jpg
%Desktop%:\CryptoLocker.lnk
%User’s Profile%\en_files.txt

In addition to this, other modifications may also be performed when it comes to the registry editor, more specifically the following Key in which custom values may be created:

→ HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run\

PCLock CryptoLocker – Post-Infection Analysis

After having already infected a computer, the ransomware may begin to encrypt the files of the infected computer. The fake CryptoLocker malware may look for various types of files such as:

→ .3fr, .accdb, .ai, .arw, .bay, .cdr, .cer, .cr2, .crt, .crw, .h, .dbf, .dcr, .der, .dng, .doc, .docm, .docx, .dwg, .dxf, .dxg, .eps, .erf, .indd, .jpe, .jpg, .kdc, .mdb, .mdf, .mef, .mrw, .nef, .nrw, .odb, .odm, .odp, .ods, .odt, .orf, .p12, .p7b, .p7c, .pdd, .pef, .pem, .pfx, .ppt, .pptm, .pptx, .psd, .pst, .ptx, .r3d, .raf, .raw, .rtf, .rw2, .rwl, .srf, .srw, .wb2, .wpd, .wps, .xlk, .xls, .xlsb, .xlsm, .xlsx Source:kb.wisc.edu

In addition to this, the malware also changes the wallpaper to it’s distinctive fake CryptoLocker wallpaper:

cryptolocker-wallpaper-malicious-sensorstechforum-com-new-en_files-txt

After doing this, it also displays a pop-up with the ransom note in which the demands of the cyber-criminals are clearly given:

cryptolocker-2016-copycat-pclock-fake-sensorstechforum

Similar to the previous versions of the CryptoLocker copycat, this version also has the ability to have a countdown timer as well as customer support.

How to Remove PCLock CryptoLocker and Try to Get Back Encrypted Files

In order to attempt and remove PCLock CryptoLocker by yourself, we advise you to try our removal instructions below, because taking your computer to an expert may cost you a lot of time and money. In case you do not have much experience with manually removing files encrypted by CryptoLocker, experts recommend downloading an advanced anti-malware software which will assist in the easy and swift removal of all the objects and files related to CryptoLocker from your computer.

To try and restore the encrypted files, we have suggested several alternative file-restoration methods below, that should provide assistance and possibly restore a portion of your files. But they are not 100% guarantee so we advise you to backup the encrypted files before trying those methods.

Note! Your computer system may be affected by PCLock and other threats.
Scan Your MAC with Combo Cleaner
Combo Cleaner is a powerful malware removal tool designed to help users with in-depth system security analysis, detection and removal of threats such as PCLock.
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Manually delete PCLock from your Mac

1. Uninstall PCLock and remove related files and objects
2. Remove PCLock – related extensions from your Mac’s browsers

Automatically remove PCLock from your Mac

When you are facing problems on your Mac as a result of unwanted scripts and programs such as PCLock, the recommended way of eliminating the threat is by using an anti-malware program. Combo Cleaner offers advanced security features along with other modules that will improve your Mac’s security and protect it in the future.


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Ventsislav Krastev

Ventsislav has been covering the latest malware, software and newest tech developments at SensorsTechForum for 3 years now. He started out as a network administrator. Having graduated Marketing as well, Ventsislav also has passion for discovery of new shifts and innovations in cybersecurity that become game changers. After studying Value Chain Management and then Network Administration, he found his passion within cybersecrurity and is a strong believer in basic education of every user towards online safety.

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