PayDay is a relatively new cryptovirus that mainly attacks English-speaking users. Once infected, documents, images, videos, and other personal files on your victims’ computers will become unreadable. In order to infiltrate the system, it usually uses deceptive emails, malicious exploits, pirated software, and trojans.
PayDay is a ransomware-type virus based on HiddenTear source code and developed by Portuguese hackers. They, apparently inspired by the popular game – PayDay, gave it the same name. The purpose of the infection is to deny access to the personal user files so it encrypts them using complex AES cipher.