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KratosCrypt Ransomware

Posted: June 27, 2016

Threat Metric

Ranking: 11,747
Threat Level: 8/10
Infected PCs: 925
First Seen: June 27, 2016
Last Seen: June 16, 2022
OS(es) Affected: Windows

The KratosCrypt Ransomware is a variant of Hidden Tear, an open source file encryptor. Symptoms expected in any the KratosCrypt Ransomware infection includes changes to your file's names, being unable to open the encrypted content, and the presence of HTML messages asking for ransom money. The PC security sector has software-based solutions both for removing the KratosCrypt Ransomware and undoing the effects of its attacks, which is why malware researchers urge against spending your money on its ransom.

Tearing a New Variant Off of Old Trojans

Open source code is the preferred resource for many developers who are building off of previous foundations of knowledge to create new applications quickly. However, a threat author also can make productive use of such information as is especially evident with the Hidden Tear project. This baseline of code has been responsible for a small fountain of modern threats, including the KimcilWare Ransomware, the 8lock8 Ransomware and the GhostCrypt Ransomware. the KratosCrypt Ransomware is one of the recent additions to this pseudo-family.

By and large, the KratosCrypt Ransomware's symptoms fall within the standards malware analysts see with previous 'Hidden Tear' Trojans. Aftereffects of a KratosCrypt Ransomware attack will include:

  • Media is sent through an AES-based encryption algorithm, causing the associated files to be unreadable.
  • Each file experiencing this attack also is appended with a new extension, the '.kratos' tag, which does not overwrite the original extension.
  • The KratosCrypt Ransomware requires a working network connection to contact pastebin.com for its final symptom: downloading and displaying a Web page-based ransom message. Current samples of the KratosCrypt Ransomware use this message for identifying themselves by name and ask for data decryption fees of 0.03 Bitcoins (or nineteen US dollars).

Pulling the Simple Solution to the KratosCrypt Ransomware out of Hiding

Using open source code is a tactic that many threat authors turn to when they lack the talent to write their Trojans from the ground up. This crutch, in its turn, often gives PC security researchers viable starting points for creating both accurate identification entries and other security solutions. Malware researchers are pleased to note that previous anti-Hidden Tear solutions, such as the Hidden Tear Decryptor, continue being viable resources for reversing all encryption-related effects of the KratosCrypt Ransomware infections.

The potential variations of this open source threat make most installation vectors especially unpredictable. In 2016, corrupted file encryption campaigns clearly have favored e-mail infection methods, such as disguising Trojan installers as invoice attachments, although not to the point of avoiding alternatives entirely. Malware researchers recommend using anti-malware tools to scan any suspicious files before opening them, even when they seem to be using non-executable formats (such as documents that can include corrupted macros).

The security sector already has developed ample solutions to the KratosCrypt Ransomware, both with limiting its attacks and removing the KratosCrypt Ransomware from any PC. It still is up to the PC's user to take these precautions, or other solutions, such as backups, for bypassing conventional ransom-based attacks. Clearly, the KratosCrypt Ransomware and other 'Hidden Tear' threats are nowhere near ceasing development in 2016.

Use SpyHunter to Detect and Remove PC Threats

If you are concerned that malware or PC threats similar to KratosCrypt Ransomware may have infected your computer, we recommend you start an in-depth system scan with SpyHunter. SpyHunter is an advanced malware protection and remediation application that offers subscribers a comprehensive method for protecting PCs from malware, in addition to providing one-on-one technical support service.

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Note: SpyHunter's free version is only for malware detection. If SpyHunter detects malware on your PC, you will need to purchase SpyHunter's malware tool to remove the malware threats. Learn more on SpyHunter. If you would like to uninstall SpyHunter for any reason, please follow these uninstall instructions. To learn more about our policies and practices, visit our EULA, Privacy Policy and Threat Assessment Criteria .

Why can't I open any program including SpyHunter? You may have a malware file running in memory that kills any programs that you try to launch on your PC. Tip: Download SpyHunter from a clean computer, copy it to a USB thumb drive, DVD or CD, then install it on the infected PC and run SpyHunter's malware scanner.