W32.Buffy.D

Risk Level 1: Very Low

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Discovered:: January 20, 2003
Updated:: February 13, 2007 11:42:25 AM
Also Known As:: I-WORM.Buffy.d [KAV]
Type:: Worm
Systems Affected:: Windows 2000, Windows 95, Windows 98, Windows Me, Windows NT, Windows XP

W32.Buffy.D is a worm that uses mIRC to spread. When the worm runs, it copies itself as C:\BTVS.exe. It also drops C:\Mirc\Script.ini, which is detected as IRC.Family.Gen by Symantec AntiVirus products. Finally, the worm drops C:\Windows\Winstart.bat and C:\Windows\Start Menu\Programs\Startup\Start.vbs, but they are not malicious.

Antivirus Protection Dates

Initial Rapid Release version January 20, 2003
Latest Rapid Release version September 28, 2010 revision 054
Initial Daily Certified version January 20, 2003
Latest Daily Certified version September 28, 2010 revision 036
Initial Weekly Certified release date January 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: Kaoru Hayashi

Removal

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Internet Security Threat Report, Volume 16