Puneet Varma (Editor)

SOLANO 2000

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Family
  
Dyslexia

Type
  
DOS

Isolation
  
March 1990

Classification
  
Computer virus

Subtype
  
DOS file infector

Start date
  
2000

Aliases
  
Solano, Solano.2000, Dyslexia.Solano, Dyslexia2.01

N e m e s i s vencer en vivo solano 2000


Solano 2000 is a computer virus that was discovered in the city of Vacaville, California, in March 1990. It is a standard variant of the Dyslexia virus family and is named after Solano County, California, in which Vacaville is located. It was also isolated, and subsequently analyzed, in San Pablo in adjacent Contra Costa County. The "2000" portion indicates the number of bytes in the virus code.

Contents

At this time, Solano 2000 is considered to be an obsolete virus.

Infection

Solano 2000 is a standard DOS file infector. It infects .COM files and is memory resident. It will infect files as they are opened after an infected .COM is opened, until the virus is terminated, such as by a reboot. It is generally not a highly damaging infector, but can occasionally corrupt files.

Symptoms

A number of symptoms are associated with Solano 2000:

  • Transposing of text on the screen associated with the virus checking the video buffer;
  • Colour changes associated with the virus checking the video buffer;
  • Increase in .COM files by 2,000 bytes;
  • 3K of RAM taken for memory residency after Solano 2000 is executed;
  • Display of "Dyslexia virus V2.01" (although this can only be produced intentionally).
  • Most of these symptoms are not specific to Solano 2000, and have been associated with more common computer viruses. A diagnosis of Solano 2000 could be considered, although it is very unlikely to be found in the field at present.

    Prevalence

    Solano 2000 was isolated in March 1990, long before virus statistics were common. However, the WildList, an organization which tracks computer viruses, never reported any virus with a name resembling Solano 2000 having been identified in the field. It is unlikely that a virus of this age would be discovered in the field, especially one which was never common in the first place. Detections of Solano 2000 should be considered very likely to be false positives.

    Aliases and variants

    CIAC and various other sources list an alias or variant of Solano 2000 as "Subliminal." It is unknown whether this is a minor variant or another name, although it may be a reference to the video buffer-related symptoms listed above.

    References

    SOLANO 2000 Wikipedia


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