AntiCMOS

Risk Level 1: Very Low

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Discovered:: July 11, 1994
Updated:: February 13, 2007 11:34:07 AM
Also Known As:: Lenart
Type:: Virus

AntiCMOS is a simple virus that infects master boot records (MBRs) and DOS boot sectors (DBSs). AntiCMOS spreads only when you attempt to boot a system from an infected floppy disk. There is little difference between the .A and .B strains of AntiCMOS. Other than the triggered event, they are identical.

Area of infection: Floppy boot sectors, master boot records
Likelihood: Common
Region reported: Europe, Hong Kong, U.S.A.
Characteristics: Wild, memory resident
Target platform: DOS

Antivirus Protection Dates

Initial Rapid Release version July 11, 1994
Latest Rapid Release version August 20, 2008 revision 017
Initial Daily Certified version July 11, 1994
Latest Daily Certified version August 20, 2008 revision 016
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