W32.Yami.A

Risk Level 1: Very Low

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Discovered:: May 21, 2005
Updated:: February 13, 2007 12:39:11 PM
Also Known As:: Virus.Win32.Niya.a [Kaspersky , W32/NGVCK.d [McAfee], PE_YAMI.A [Trend Micro]
Type:: Virus
Systems Affected:: Windows XP

W32.Yami.A is a file infector virus that infects Windows Portable Executable (PE) files on Windows XP systems. It injects itself into kernel memory and monitors file activity. The virus uses slack space to infect executable files, therefore infected files will not increase in size.

Antivirus Protection Dates

Initial Rapid Release version May 21, 2005
Latest Rapid Release version September 28, 2010 revision 054
Initial Daily Certified version May 21, 2005
Latest Daily Certified version September 28, 2010 revision 036
Initial Weekly Certified release date May 24, 2005

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: High

Distribution

Distribution Level: Low

Writeup By: Costin Ionescu

Technical Details

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Internet Security Threat Report, Volume 16