W32.Yalat.Worm

Risk Level 1: Very Low

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Discovered:: February 10, 2003
Updated:: February 13, 2007 11:51:40 AM
Also Known As:: I-Worm.Haelp [KAV], W32/Yalat.worm [McAfee]
Type:: Worm
Systems Affected:: Windows 2000, Windows 95, Windows 98, Windows Me, Windows NT, Windows XP

W32.Yalat.Worm is a worm that attempts to spread by using MAPI and by copying itself to shared folders. It also attempts to stop the processes of some antivirus programs. Due to bugs in the code, the worm does not work as intended.

Antivirus Protection Dates

Initial Rapid Release version February 10, 2003
Latest Rapid Release version September 28, 2010 revision 054
Initial Daily Certified version February 10, 2003
Latest Daily Certified version September 28, 2010 revision 036
Initial Weekly Certified release date February 12, 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: Moderate

Damage

Damage Level: Medium

Distribution

Distribution Level: Low

Writeup By: Kaoru Hayashi

Technical Details

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Internet Security Threat Report, Volume 16