An infostealer is a type of malicious software designed with the primary goal of extracting valuable information from compromised systems. They can discreetly infiltrate computers, operating in the background without arousing suspicion, with the primary goal of extracting valuable information from compromised systems. They can target a range of data, including login credentials, financial information, personal identities and intellectual property. The harvested information is collected by attackers and often sold to other threat actors who will use the data to conduct additional attacks.