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Command-Line Reference : Microsoft TechNet Database "Command-Line Reference" The MS-DOS 6 Technical Reference on TechNet contains the official Microsoft MS-DOS 6 command reference documentation. DR-DOS 7.03 online manual Archived 2018-08-21 at the Wayback Machine
The first line is a reference to the method used to find COMMAND.COM to infect, as well as file types that the virus infects. The second line refers to the version of MS-DOS that Ontario.2048 was written on. The third is a reference to the Youngsters Against McAfee virus group, which the author had joined by this point.
Agent.btz, a variant of the SillyFDC worm, [4] has the ability "to scan computers for data, open backdoors, and send through those backdoors to a remote command and control server." [5] It was originally suspected that Chinese or Russian hackers were behind it as they had used the same code that made up agent.btz before in previous attacks. In ...
For example, code in the virus suppresses the printing of console messages if, say, the virus is not able to infect a file on a read-only device such as a floppy disk. One of the clues that a computer is infected is the mis-capitalization of the well-known message " Bad command or file name " as "Bad Command or file name".
The Ada virus mainly targets .COM files, specifically COMMAND.COM. AGI-Plan: Month 4-6 DOS Mülheim: AGI-Plan is notable for reappearing in South Africa in what appeared to be an intentional re-release. AI DOS AIDS: AIDSB, Hahaha, Taunt DOS 1990 AIDS is the first virus known to exploit the DOS "corresponding file" vulnerability. AIDS II: DOS ...
EXE files including command.com. Each time an infected file is executed, Acid infects all of the .EXE files in the current directory. Later, if an infected file is executed, it infects the .COM files in the current directory. Programs infected with Acid will have had the first 792 bytes of the host program overwritten with Acid's own code ...
AIDS is the first virus known to exploit the MS-DOS "corresponding file" vulnerability. In MS-DOS, if the user enters FOO in the command interpreter, in a directory where both FOO.COM and FOO.EXE exist, then FOO.COM will always be executed. Thus, by creating infected COM files, AIDS code will always be executed before the intended EXE file. [2]
Zeus is very difficult to detect even with up-to-date antivirus and other security software as it hides itself using stealth techniques. [5] It is considered that this is the primary reason why the Zeus malware has become the largest botnet on the Internet: Damballa estimated that the malware infected 3.6 million PCs in the U.S. in 2009. [6]