fbpx
Wikipedia

Sunday (computer virus)

Sunday is a computer virus (program file virus), a member of the Jerusalem virus family. It was discovered in November 1989[1] after a number of simultaneous reports from Seattle, Washington, United States, and surrounding areas. Several other Seattle outbreaks, including AirCop, were later traced to Asia.

Sunday
Common nameSunday
Technical nameJerusalem.Sunday
AliasesJerusalem.Sunday
FamilyJerusalem
ClassificationVirus
TypeDOS
SubtypeDOS file infector
IsolationNovember 1989
Point of isolationSeattle, Washington, United States
Point of originUnknown
Author(s)Unknown

Infection

Sunday is a standard patched Jerusalem variant in the way it infects files. It is a type of program file virus. It is a directly modified version of the original Jerusalem.1803. It infects .EXE, .COM, and .OVL files. Like the original Jerusalem, infected files occasionally become corrupted.

Symptoms

Sunday is less easily identified than the original Jerusalem, in part because of corrected errors and in part because its payload is poorly written and fails to execute.

  • COM and EXE files increase by size. COM files increase by a set amount, while EXE files increase by somewhere between that amount and 9 or 10 bytes less. Unlike the original Jerusalem, files will not be infected many times.
  • Interrupt 21 will be hooked.
  • Infected files will contain the string "Today is SunDay! Why do you work so hard? All work and no play make you a dull boy! Come on! Let's go out and have some fun!"

The capitalization of "Sunday" is reported variously as "Sunday" or "SunDay", and may depend on the variant.

Because of an error in coding, the virus fails to execute its payload, intended to set off on Sundays of every year other than 1989. This is to print the previously indicated text on the screen and then delete all files run while the virus is memory resident, as the original Jerusalem did every Friday the 13th.

Prevalence

The WildList, an organisation tracking computer viruses, listed Sunday as spreading in various forms from shortly after the list was started until 1998.[2] Like all DOS viruses, Sunday suffered with the debut of Windows. It is now considered obsolete, although the virus was common enough that the use of previously dormant files has resulted in recent infections. However, anything other than a localised outbreak is unlikely.[citation needed]

References

  1. ^ "Sunday Virus". VSUM. Retrieved 14 February 2013.
  2. ^ "The WildList Organization International". www.wildlist.org. Retrieved 2021-09-15.

sunday, computer, virus, sunday, computer, virus, program, file, virus, member, jerusalem, virus, family, discovered, november, 1989, after, number, simultaneous, reports, from, seattle, washington, united, states, surrounding, areas, several, other, seattle, . Sunday is a computer virus program file virus a member of the Jerusalem virus family It was discovered in November 1989 1 after a number of simultaneous reports from Seattle Washington United States and surrounding areas Several other Seattle outbreaks including AirCop were later traced to Asia SundayCommon nameSundayTechnical nameJerusalem SundayAliasesJerusalem SundayFamilyJerusalemClassificationVirusTypeDOSSubtypeDOS file infectorIsolationNovember 1989Point of isolationSeattle Washington United StatesPoint of originUnknownAuthor s Unknown Contents 1 Infection 2 Symptoms 3 Prevalence 4 ReferencesInfection EditSunday is a standard patched Jerusalem variant in the way it infects files It is a type of program file virus It is a directly modified version of the original Jerusalem 1803 It infects EXE COM and OVL files Like the original Jerusalem infected files occasionally become corrupted Symptoms EditSunday is less easily identified than the original Jerusalem in part because of corrected errors and in part because its payload is poorly written and fails to execute COM and EXE files increase by size COM files increase by a set amount while EXE files increase by somewhere between that amount and 9 or 10 bytes less Unlike the original Jerusalem files will not be infected many times Interrupt 21 will be hooked Infected files will contain the string Today is SunDay Why do you work so hard All work and no play make you a dull boy Come on Let s go out and have some fun The capitalization of Sunday is reported variously as Sunday or SunDay and may depend on the variant Because of an error in coding the virus fails to execute its payload intended to set off on Sundays of every year other than 1989 This is to print the previously indicated text on the screen and then delete all files run while the virus is memory resident as the original Jerusalem did every Friday the 13th Prevalence EditThe WildList an organisation tracking computer viruses listed Sunday as spreading in various forms from shortly after the list was started until 1998 2 Like all DOS viruses Sunday suffered with the debut of Windows It is now considered obsolete although the virus was common enough that the use of previously dormant files has resulted in recent infections However anything other than a localised outbreak is unlikely citation needed References Edit Sunday Virus VSUM Retrieved 14 February 2013 The WildList Organization International www wildlist org Retrieved 2021 09 15 Retrieved from https en wikipedia org w index php title Sunday computer virus amp oldid 1114549274, wikipedia, wiki, book, books, library,

article

, read, download, free, free download, mp3, video, mp4, 3gp, jpg, jpeg, gif, png, picture, music, song, movie, book, game, games.