MadMxShell is a type of malware that infects computers by exploiting vulnerabilities in the system or by tricking users into downloading and executing malicious code. Once installed, MadMxShell can steal sensitive information, disrupt system operations, and perform various malicious activities without the user’s consent. It is important to have up-to-date security software and practice safe browsing habits to protect against malware like MadMxShell.