Panda USB Vaccine is a free security application designed to protect your PC against malicious threats that spread via USB devices, such as external hard drives, USB sticks, and other removable storage media. It is designed to protect against Autorun and Autoplay-based malware, which is a common way for malicious software to infect your PC. Panda USB Vaccine works by immunizing all USB devices connected to your computer, blocking any malicious code that tries to spread through USB. It provides two immunization options: 'Vaccinate' and 'Vaccinate and Disable Autorun'. 'Vaccinate' immunizes the device by creating a small, read-only file on it that prevents malicious programs from running when the device is connected to the computer, while 'Vaccinate and Disable Autorun' also disables the Autorun feature on the device, making it harder for malicious code to spread. In addition, Panda USB Vaccine also includes a 'Restore Autorun' feature that can be used to undo the immunization process. This feature is useful for restoring the Autorun and Autoplay features on USB devices that have been immunized. Overall, Panda USB Vaccine is a useful security application that can help protect your PC against malicious threats that spread via USB devices.
Discontinued The program seems to be no longer updated. The latest version, 6.5.0, released in February 2015, is still available for download from the official website