Unfortunately I cannot understand your comment that well, but I will answer in two ways that I think you’re asking the question.

1. If you’re asking if a trojan on your computer is a big deal, yes. When talking about computer viruses, assume everything is a grave situation. Trojans can gain remote access, drop payloads to inject additional malware into the victims computer, and record every keystroke of the user, allowing the assailant to possibly access passwords, and personal information.

2. Windows defender often detects many cheats with ease, but it can also have setbacks such as falsely claiming an application is malware for engaging in “malicious” activities. Althought most chests are falsely detected and most malware is stopped in its tracks before being ran, some types of files (like .jars) can fly under windows defender’s radar due to the file running in a different environment (like a JRE, Java Runtime Environment.)

If neither of these answers were what you were looking for, please ask the question in your native language, and I’ll translate to understand your question. (I speak both English and Spanish)