Mal/Encpk-Ns is a type of malware that infects computers by encrypting files on the system and demanding a ransom for decryption. This malware usually spreads through malicious email attachments, infected websites, or through software vulnerabilities. Once a computer is infected, Mal/Encpk-Ns will encrypt files on the system, making them inaccessible to the user. The malware will then display a message demanding payment in order to decrypt the files and restore access to the system. It is important to regularly update antivirus software and be cautious when downloading attachments or clicking on links from unknown sources to prevent infection by Mal/Encpk-Ns.