Ransom:Msil/Filecoder.Yg!Mtb is a type of ransomware that encrypts files on a computer and demands payment in exchange for the decryption key. This malware typically infects computers through malicious email attachments, infected websites, or through exploiting vulnerabilities in software or operating systems.
Once the ransomware infects a computer, it will encrypt files on the system, making them inaccessible to the user. The ransomware will then display a message demanding payment in exchange for the decryption key, usually in the form of cryptocurrency such as Bitcoin.
It is important to regularly back up your files and keep your antivirus software up to date to protect against ransomware attacks like Ransom:Msil/Filecoder.Yg!Mtb. Additionally, exercise caution when opening email attachments or clicking on links from unknown sources to avoid becoming a victim of ransomware.