Abstract
Abstract: A bug known as "Bad USB" allows a hacker to manipulate a USB flash drive's firmware. Malicious code is automatically activated when the Bad USB device is connected into the USB port of the host system. It is challenging to identify the malicious code since the host system interprets the harmful activities as legitimate ones required to load the USB device. Additionally, antivirus software is unable to detect firmware that has been modified because it examines the storage region rather than the firmware area. The vulnerability has a detrimental knock-on impact since a large number of computer peripherals (similar to USB flash drives, keyboards) are connected to the host machine using the USB protocols. Universal Serial Bus (USB) has become the primary connecting port for cutting-edge computers as a result of its universality. Programmability makes it easier for operating system and tackle manufacturers to develop their goods and associated firmware, but as of right now, a fix for the issue is unknown. In this article, we analyze the tampered area of the firmware that occurs when a good USB device is switched out with a bad one and provide a fix to ensure the integrity of the area when the USB thrills
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