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2. Computer virus - Wikipedia

   en.wikipedia.org/wiki/Computer_virus

   This is an accepted version of this page This is the latest accepted revision, reviewed on 26 December 2024. Computer program that modifies other programs to replicate itself and spread Hex dump of the Brain virus, generally regarded as the first computer virus for the IBM Personal Computer (IBM PC) and compatibles A computer virus is a type of malware that, when executed, replicates itself by ...

3. Scott's Valley - Wikipedia

   en.wikipedia.org/wiki/Scott's_Valley

   Interrupt 21 will be hooked. Infected files will contain the seemingly meaningless hex string 5E8BDE909081C63200B912082E. Scott's Valley is a member of the Slow virus family, which has been associated with system slowdowns, although this symptom is unconfirmed.

4. 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 640K DOS boundary and hooks interrupts 16 and 1C.

5. KoKo (computer virus) - Wikipedia

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

   The KoKo virus infects the target system by hooking the Windows interrupt INT 21h and writes itself to the end of COM and EXE files that are executed. The payload of this virus activates on July 29 and February 15. When activated the virus displays a message and may erase the computers disk sectors.

6. 5lo - Wikipedia

   en.wikipedia.org/wiki/5lo

   5lo stays resident. Whenever a .EXE file is run, 5lo will infect it (and another .EXE file). The virus also changes the file's timestamp to the date and time of infection. After these infections, a counter within the virus starts. However, this counter is never checked, so the virus doesn't activate. 5lo appends its code into infected files.

7. Comparison of computer viruses - Wikipedia

   en.wikipedia.org/wiki/Comparison_of_computer_viruses

   By the time the virus is identified, many names have been used to denote the same virus. Ambiguity in virus naming arises when a newly identified virus is later found to be a variant of an existing one, often resulting in renaming. For example, the second variation of the Sobig worm was initially called "Palyh" but later renamed "Sobig.b ...