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  2. ABC (computer virus) - Wikipedia

    en.wikipedia.org/wiki/ABC_(computer_virus)

    ABC, discovered in October 1992, is a memory-resident, file-infecting computer virus which infects EXE files and may alter both COM and EXE files. ABC activates on the 13th day of every month. Upon infection, ABC becomes memory-resident at the top of system memory but below the 640 K DOS boundary and hooks interrupts 16 and 1C.

  3. Comparison of computer viruses - Wikipedia

    en.wikipedia.org/wiki/Comparison_of_computer_viruses

    Polymorphic [1] 1990 First virus family to use polymorphic encryption 4K: 4096 DOS 1990-01 The first known MS-DOS-file-infector to use stealth 5lo: DOS 1992-10 Infects .EXE files only Abraxas: Abraxas5 DOS, Windows 95, 98 [1] 1993-04 Europe: ARCV group Infects COM file. Disk directory listing will be set to the system date and time when ...

  4. Abraxas (computer virus) - Wikipedia

    en.wikipedia.org/wiki/Abraxas_(computer_virus)

    It does not become memory resident. Each time an infected file is executed, Abraxas infects the copy of dosshell.com located in the C:\DOS directory (creating the file if it does not exist), as well as one EXE file in the current directory. Due to a bug in the virus, only the first EXE file in any directory is infected.

  5. Blackshades - Wikipedia

    en.wikipedia.org/wiki/Blackshades

    Download and execute files on the victim's computer. Use the victim's computer as a proxy server. Blackshades reportedly can be used by computer hackers with little experience or by script kiddies, hackers that use programs developed by others to attack computer systems. [1] Blackshades can also act as ransomware. Hackers using Blackshades can ...

  6. Acid (computer virus) - Wikipedia

    en.wikipedia.org/wiki/Acid_(computer_virus)

    Acid is a computer virus which infects .COM and .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.

  7. Fun.exe virus - Wikipedia

    en.wikipedia.org/wiki/Fun.exe_virus

    The Fun.Exe virus is of the w32.Assarm family of computer viruses. According to Symantec [1] it registers itself as a Windows system process then periodically sends mail with spreading attachments as a response to any unopened emails in Outlook Express. This virus first appeared in early 2008 and is now recognized by most anti virus programs.

  8. AIDS (computer virus) - Wikipedia

    en.wikipedia.org/wiki/AIDS_(computer_virus)

    AIDS II works by first finding an uninfected EXE file in the working directory and then creating a companion COM file with the viral code. The COM files will always be 8,064 bytes in length, with a timestamp corresponding to the time of infection. After creating the new COM file, the virus then plays a loud note, and displays the following ...

  9. Alabama (computer virus) - Wikipedia

    en.wikipedia.org/wiki/Alabama_(computer_virus)

    Instead of searching for a file to infect, Alabama searches for a file to cross-reference. The virus modifies the FAT entry so that when the user executes one file, another will appear. For instance, on a machine where Alabama is resident, executing PROGRAM1.EXE on a Friday may cause the virus to search for another program and find PROGRAM2.EXE.