W32.Nimda.R

W32.Nimda.R is a limited version of W32.Nimda.A@mm. This variant infects Portable Executable (PE) files and creates network shares for all the drives. Further, the virus adds the user Guest under the groups, Guests and Administrators. This gives the guest account Administrative privileges.




For additional information, read the Microsoft TechNet article, Information on the "Nimda" Worm.

Protection

• Initial Rapid Release version June 17, 2003
• Latest Rapid Release version June 17, 2003
• Initial Daily Certified version June 17, 2003
• Latest Daily Certified version June 17, 2003
• Initial Weekly Certified release date June 17, 2003

Click here 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: Moderate

Damage

• Damage Level: Medium

Distribution

• Distribution Level: Low