PDFCastle is a type of malware that infects computers through PDF files. The malware is designed to exploit vulnerabilities in Adobe Acrobat Reader and other PDF readers, allowing it to infect the system without the user’s knowledge. Once a computer is infected with PDFCastle, the malware can steal sensitive information, monitor online activities, and even take control of the system.
PDFCastle is typically spread through malicious email attachments or links that appear legitimate. When a user opens a PDF file infected with PDFCastle, the malware is activated and begins to spread throughout the system. In some cases, PDFCastle may also be bundled with other types of malware, making it even more dangerous and difficult to remove. To protect against PDFCastle and other malware, it is important for users to regularly update their PDF reader and other software, and to be cautious when opening email attachments or clicking on links from unknown sources.