ThiefQuest Mac Ransomware


ThiefQuest is a file-locking ransomware virus which can be used to extort money from its Mac victims. ThiefQuest typically uses sophisticated cryptography to render digital files inaccessible so that the hackers behind the infection can ask for a ransom.


ThiefQuest message pop up on Mac

Hundreds of web users are losing access to their most valuable files every day due to accidental infection with this new ransomware virus and may fall prey to the money extortion scheme launched by the crooks behind ThiefQuest. Originally named EvilQuest, the malware was later renamed ThiefQuest to avoid confusion, as EvilQuest is the name of a video game.The victims are typically asked to immediately transfer a certain amount of money to a given cryptocurrency account in order to receive a decryption key for the files that the virus has encrypted. If you are on this page, however, we assume that you are not ready to pay a ransom to some anonymous hackers and are more interested in how to remove the infection and restore your files by other means. That’s why, in the next lines, we will provide you with information about the specifics of ThiefQuest and the methods that you can use to deal with it.

The ThiefQuest Ransomware

The ThiefQuest ransomware is a virus threat that seeks to keep its victims’ most valuable data unavailable so it can harass them to pay a ransom. The crooks behind the ThiefQuest ransomware promise that, in exchange for the payment, they will send the victims a unique decryption key for their files.

ThiefQuest ransomware

ThiefQuest ransom note

Typically, the hackers inform the attacked user about the payment instructions by placing a ransom notification on their screen shortly after the file-encryption is done. If the files that have been encrypted are of not such a great importance to you or you have backups from where you can recover them, however, you have the option to remove the virus and use your computer as before. The manual guide below contains instructions on how to remove ThiefQuest and a professional program that can help you do that without much of hassle. If the virus has been able to detect and encrypt files of significant interest to you, though, you may have to carefully consider all the risks and the alternatives for file recovery in order to deal with the consequences of the attack in the best possible way.

The ThiefQuest on Mac

The ThiefQuest on Mac file encryption is a method used to protect files from being accessed without a decryption key. The ThiefQuest on Mac file encryption is a sophisticated algorithm that can only be reversed with the application of a matching decryption key.  

Yet even though the hackers may tell you that the only way to recover your files is to pay the required ransom, many security professionals advise that you should take time to think about the various alternative approaches to this problem instead of simply transferring the necessary amount and waiting for the crooks to send you a key. In fact, paying the ransom should be your very last resort because there is no way to tell whether the hackers will really provide such a key or not. That’s why our suggestion is to take a look at the removal guide on this page as well as the file recovery options that we have listed there.



Name ThiefQuest
Type Ransomware
Detection Tool

ThiefQuest Mac Ransomware Removal

You are dealing with a malware infection that can restore itself unless you remove its core files. We are sending you to another page with a removal guide that gets regularly updated. It covers in-depth instructions on how to:
1. Locate and scan malicious processes in your task manager.
2. Identify in your Control panel any programs installed with the malware, and how to remove them. Search Marquis is a high-profile hijacker that gets installed with a lot of malware.
3. How to clean up and reset your browser to its original settings without the malware returning. You can find the removal guide here.

For mobile devices refer to these guides instead: Android, iPhone


About the author


Lidia Howler

Lidia is a web content creator with years of experience in the cyber-security sector. She helps readers with articles on malware removal and online security. Her strive for simplicity and well-researched information provides users with easy-to-follow It-related tips and step-by-step tutorials.

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