Infostealer is a type of malware that is specifically designed to steal personal and financial data from the victim's computer. It is often used by hackers to gain access to sensitive information such as credit card numbers, bank account numbers, passwords, and other private data. Infostealer can be highly dangerous and can lead to serious financial losses and identity theft. It is important to take steps to protect your computer from Infostealers by using antivirus software and keeping your computer up to date with the latest security patches.