Crack tools are often detected as malware or viruses, as they are designed to modify programs and files so that they do not work as intended. They delete verification files, modify the registry, and do whatever they can to prevent their target from functioning properly. The goal of a crack is to alter an exe file, which is a red flag for virus activity, even if it isn't. We can see that the decrypted software contains malware and also the social engineering skills used by the hacker which can be used to hack the person who downloads the decrypted software.
It is important to be careful when downloading anything, as our mistake can lead to being hacked. Antivirus software cannot always protect us, as malware can become FUD (totally undetectable) with various techniques. It is best to use genuine software provided by the company, as security should be our priority. Cracks that are also Trojans are particularly dangerous because the hackers who created the malware will not only want it to enter your device without being seen.
Even if a crack seems to work well, we should not be complacent. Often, the person who installed that software and manages it wants to know that decrypted software has been installed on their machine. However, sometimes people who make cracks available for download (hosters) infect them with an additional Trojan component or spyware, etc. Applications such as key generation applications seem to be more likely to get infected (which makes sense, since they are smaller and there is no need to decipher a legitimate program first). It is not uncommon for known harmless crack signatures to be permanently blacklisted by antivirus software, even if those cracks do not infect your devices and do not collect personal information.
The older the version of software you are using, the greater the risk of malware exploiting vulnerabilities in decrypted software. The scrolling is identified and the code is manipulated to jump, regardless of which serial key is entered, which decrypts the game. Technically, all you need to decrypt a software is a text editor that can edit hexadecimal values in a binary (Hex editing software is suitable for this). Crack is adware software that delivers advertising content to the end user and can be considered invasive of privacy. There is no such thing as “safe to use” decrypted software, unless you know and trust its SOURCE.
There is no way of knowing what kind of viruses, root kits, Trojans, etc. may have been added by the one who decrypted the software. OFTEN THE SOFTWARE IS NOTHING MORE THAN MALWARE THAT PRETENDS TO BE A CRACK. Even though crack allows you, the user, to use the program for free (that is, you are achieving your goal with the program and making it work the way you want it), antivirus software does not care about that.
It is impossible for anyone to reverse engineer every distributed copy of every crack on the market - this is part of why they are told that there is %3D %3D piracy malware in the first place.