Virus.DOS.Walker is a DOS-based computer virus that targets DOS operating systems. This virus is known for its unique payload that displays a walking figure on the screen when it activates. Unlike many modern viruses, Virus.DOS.Walker does not spread through email or network connections; instead, it infects executable files on the local system. Once an infected file is executed, the virus loads into memory and infects other executable files. Although not particularly harmful in terms of data destruction, Virus.DOS.Walker can be disruptive by causing unexpected behavior and slowing down the system. It serves as an interesting example of early computer viruses that utilized creative payloads to demonstrate the capabilities of malware.