W32.Hunch@mm

Risk Level 2: Low

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Discovered:: January 29, 2002
Updated:: February 13, 2007 11:38:06 AM
Also Known As:: Bloodhound.W32.VBWORM, W32.Hunch.D@mm
Type:: Worm
Systems Affected:: Windows 2000, Windows 95, Windows 98, Windows Me, Windows NT, Windows XP

W32.Hunch@mm is a mass-mailing worm that modifies the Autoexec.bat file in an attempt to format drive C. It deletes all .ocx, .sys, and .dll files from the C:\_RESTORE folder, and deletes other files that have a randomly chosen extension.

Antivirus Protection Dates

Initial Rapid Release version January 30, 2002
Latest Rapid Release version September 28, 2010 revision 054
Initial Daily Certified version January 30, 2002
Latest Daily Certified version September 28, 2010 revision 036
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: High

Distribution

Distribution Level: High

Writeup By: Douglas Knowles

Technical Details

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Internet Security Threat Report, Volume 16