CrazyCrypt 2.1 Ransomware — How to Remove It
THREAT REMOVAL

CrazyCrypt 2.1 Ransomware — How to Remove It

This article will aid you to remove CrazyCrypt 2.1 Ransomware. Follow the ransomware removal instructions provided at the end of the article.

CrazyCrypt 2.1 Ransomware is one that encrypts your personal data with a strong cipher and demands money as a ransom to get it restored. The CrazyCrypt 2.1 Ransomware will leave ransomware instructions as text file. Keep on reading the article and see how you could try to potentially recover some of your locked files and data.

Threat Summary

NameCrazyCrypt 2.1 ransomware
TypeRansomware, Cryptovirus
Short DescriptionThe ransomware encrypts sensitive user files on your computer system and demands a ransom to be paid to allegedly recover them.
SymptomsThe ransomware will encrypt your files and leave a ransom note with payment instructions.
Distribution MethodSpam Emails, Email Attachments
Detection Tool See If Your System Has Been Affected by CrazyCrypt 2.1 ransomware

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User ExperienceJoin Our Forum to Discuss CrazyCrypt 2.1 ransomware.
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.

CrazyCrypt 2.1 Ransomware – Distribution Techniques

The CrazyCrypt 2.1 ransomware samples have been captured in a live test campaign which shows that it the threat is probably in an early stage of testing and development. We anticipate that the criminals will use the most popular tactics which are the following:

  • Email Phishing Campaigns — The criminals can craft deceiving messages that appear as being sent by a legitimate sender. The spoofed messages may contain the same body contents as the real ones, the only difference may be in the address fields. by interacting with the links or any multimedia content the victims will be redirected to the malicious payload. The file may also be directly attached.
  • Dangerous Sites — Fake download sites and popular sites can be crafted in order to fool the visitors into thinking that they have found a legitimate and safe place. Usual victims are search engines, download portals, product landing pages and etc. They are popularly hosted on similar sounding domain names and stolen or self-signed security certificates.
  • Dangerous Application Installers — This method relies on the creation of infected installers of software that is frequently downloaded by end users. This includes all sorts of system utility and productivity and office applications. The hackers will take the original files from their official sources and adding in the necessary code.
  • Infected Documents — A similar technique is to embed dangerous macros in the most popular document types: text files, spreadsheets, databases and presentations. When they are opened by the victims a notification message will be spawned asking the users to enable the built-in content. The quoted reason is that this is required in order to correctly view the file. If this is done the CrazyCrypt 2.1 ransomware infection will start.
  • Browser Hijackers — They are dangerous web browser extensions which are spread on the repositories of the most popular applications with fake user reviews and developer credentials. They pose as useful additions that can enhance the applications in some way. Whenever they are installed modifications to the browsers will take place — this is done in order to redirect the victims to a hacker-set landing page.
  • File Sharing Networks — Popular networks such as BitTorrent can be used to carry both the standalone virus files and the carriers. They are a popular place where both legitimate and pirate data is found.

As the virus is developed further other methods can be used as well.

CrazyCrypt 2.1 Ransomware – Detailed Analysis

The CrazyCrypt 2.1 ransomware is a test virus which appears to have code taken from several of the popular malware families — Hidden Tear and Jigsaw. The source code of the main engines are available on the hacker underground forums which signals that the developers behind this creation want to make a custom threat of their own.

At the moment it contains only the ransomware engine however we anticipate that the full release will include other components as well. Some of the main ones that are often found with similar threats are the following:

  • Data Collection — The ransomware can be programmed to extract sensitive information from the compromised machines. This includes both machine metrics that can be used to create an unique ID for each computer and personal information. This is done by an engine that will be programmed to harvest strings according to the proper category. A complex algorithm will take the necessary values that can identify a given computer and compute them into a single string — the list of installed hardware parts, user settings and operating system conditions. The personal information that can be acquired include the person’s name, address, phone number, interests and account credentials.
  • Security Bypass — The CrazyCrypt 2.1 ransomware can be programmed to search for security software that can interfere with the proper virus deployment. Their real-time engines will be bypassed or entirely removed. The list of potential applications that are usually affected includes anti-virus programs, firewalls, virtual machine hosts and sandbox environments.
  • Windows Registry Changes — Most popular ransomware of this type can alter the Windows Registry by creating entries for itself or modifying already existing ones. If values that are used by the operating system are affected then the victims may experience serious performance issues and may have trouble accessing certain services. The changes that are made to third-party applications can lead to unexpected errors during runtime.
  • Removal of Data — The engine can be programmed to delete sensitive data such as backups, restore points and shadow volume copies.
  • Persistent Installation — The CrazyCrypt 2.1 ransomware can be set up as a persistent threat that will run every time the computer is powered on. It can also disable access to the boot options and recovery menus. This makes most of the manual user removal guides non-working as they require access to them. In this case a quality anti-spyware solution must be used in order to recover the systems.

Other code can be added in the final versions which can other behavior as well.

CrazyCrypt 2.1 Ransomware – Encryption Process

The CrazyCrypt 2.1 ransomware will launch the relevant encryption operations when all modules have finished running. Like other similar threats it will use a built-in list of target file type extensions such as the following:

  • Backups
  • Archives
  • Databases
  • Images
  • Music
  • Videos

A lockscreen instance or a pop-up screen will be shown to the victims instead of a ransomware note.

Remove CrazyCrypt 2.1 Ransomware and Try to Restore Data

If your computer system got infected with the CrazyCrypt 2.1 ransomware virus, you should have a bit of experience in removing malware. You should get rid of this ransomware as quickly as possible before it can have the chance to spread further and infect other computers. You should remove the ransomware and follow the step-by-step instructions guide provided below.

Martin Beltov

Martin graduated with a degree in Publishing from Sofia University. As a cyber security enthusiast he enjoys writing about the latest threats and mechanisms of intrusion.

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