W32.Sakao

Risk Level 1: Very Low

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Discovered:: October 17, 2003
Updated:: February 13, 2007 12:12:19 PM
Also Known As:: W32.HLLW.Sakao
Type:: Virus
Systems Affected:: Windows 2000, Windows 95, Windows 98, Windows Me, Windows NT, Windows Server 2003, Windows XP

W32.Sakao is a simple virus that attempts to spread itself through floppy disks.

This threat is written in the Microsoft Visual Basic (VB) programming language. The VB run-time libraries are required for W32.Sakao to be executed.

Notes:

Due to a bug in the code, the file name and location of the virus must be one of the following:
- \Sadako.exe
- a:\Sadako.exe
- C:\WINDOWS\Start Menu\Programs\Startup\FindFast.exe
- \Myfile
- a:\Myfile.exe
- C:\WINDOWS\File.exe
Virus definitions dated October 20, 2003 or earlier may detect this virus as W32.HLLW.Sakao.

Antivirus Protection Dates

Initial Rapid Release version October 17, 2003
Latest Rapid Release version September 28, 2010 revision 054
Initial Daily Certified version October 17, 2003
Latest Daily Certified version September 28, 2010 revision 036
Initial Weekly Certified release date October 22, 2003

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

Writeup By: Robert X Wang

Technical Details

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Internet Security Threat Report, Volume 16