Jos.1000

Risk Level 1: Very Low

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Discovered:: December 2, 1990
Updated:: February 13, 2007 11:34:11 AM
Also Known As:: Jabb, Jabberwoc
Type:: Virus
Systems Affected:: DOS

The JOS.1000 virus is a rather simple .COM file infecting virus that will not infect files with a size of 3,000 bytes or less, or the COMMAND.COM file.

Antivirus Protection Dates

Initial Rapid Release version December 20, 2000
Latest Rapid Release version July 12, 2008 revision 018
Initial Daily Certified version December 20, 2000
Latest Daily Certified version September 28, 2010 revision 036
Initial Weekly Certified release date pending

Click for a more detailed description of Rapid Release and Daily Certified virus definitions.

Threat Assessment

Wild

Wild Level: Low
Number of Infections: 0 - 49
Number of Sites: 0 - 2
Geographical Distribution: Low
Threat Containment: Easy
Removal: Easy

Damage

Damage Level: Low

Distribution

Distribution Level: Low

Technical Details

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Internet Security Threat Report, Volume 16