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TestCryptoMix Ransomware

Posted: December 5, 2017

Threat Metric

Threat Level: 1/10
Infected PCs: 85
First Seen: May 18, 2022
OS(es) Affected: Windows

The TestCryptoMix Ransomware is not a test version, despite its name. The name is derived from the e-mail addresses and file extension that the authors of the TestCryptoMix Ransomware have opted to use to make their attacks more distinguishable. As the name suggests, this file locker is indeed based on the CryptMix Ransomware project and, unfortunately, this also means that its victims will not be able to rely on a free decryption tool that is both free and effective.

It is likely that the corrupted executable file used to launch the file-encryption Trojan is being spread with the help of fraudulent e-mail messages, which may be crafted to look as if they were sent by a legitimate company or institution. Often, the said e-mails may contain an attached document or archive, which is not trustworthy, and executing it may lead to having your valuable data taken hostage by the TestCryptoMix Ransomware. This threat's attack can be recognized easily because the ransomware will append the '.TEST' extension to the names of all locked files and, in addition to this, it also will deploy a file called '_HELP_INSTRUCTION.TXT.' The text file does not specify the exact amount of money victims will need to pay, but it is not uncommon for the cybercrooks behind CryptMix variants to ask their victims for sums well-above a thousand dollars. The crooks behind the TestCryptoMix Ransomware have provided the following e-mail addresses which can be used to get in touch with them:

  • test757@tuta.io
  • test757@protonmail.com
  • test757xz@yandex.com
  • test757xy@yandex.com
  • test757@consultant.com

Unfortunately, the TestCryptoMix Ransomware performs several additional tasks whose purpose is to ensure that victims will have a minimal chance of getting any of their files back via 3rd-party utilities. The threat fully deletes the Shadow Volume Copies and disables the System Restore service. In addition to this, it also attempts to disable the Windows Defender integrated into the latest versions of the operating system. It does not attempt to interfere with the operations of anti-virus software so that you can rest assured that having your PC protected by a reputable anti-malware tool is an easy way to keep the TestCryptoMix Ransomware away. If the attack has already been carried out and you are looking to recover, then you might be disappointed to hear that this is nearly impossible if you don't possess backup copies of the encrypted files. While the removal of the TestCryptoMix Ransomware can be completed with the assistance of an up-to-date anti-virus scanner, there isn't a reliable method or utility that can reverse the damage done to your files.

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