W32.Assarm@mm

Risk Level 1: Very Low

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Discovered:: August 2, 2002
Updated:: February 13, 2007 11:56:08 AM
Type:: Worm
Systems Affected:: Windows 2000, Windows 95, Windows 98, Windows Me, Windows NT, Windows XP

W32.Assarm@mm is a mass-mailing worm that sends messages in reply to all unread messages in the Microsoft Outlook Mailbox. The email messages are not sent if the day of the week is Monday or Thursday and the hour of the time of day is greater than 5. For example, if the time is 4:00 A.M or 4:00 P.M., the message will be sent; if the time is 6:00 A.M or 6:00 P.M., it will not be sent.

The subject of the email message is "Re: <original message subject line>." The attachment varies.

Antivirus Protection Dates

Initial Rapid Release version August 2, 2002
Latest Rapid Release version December 31, 2008 revision 037
Initial Daily Certified version August 2, 2002
Latest Daily Certified version December 31, 2008 revision 041
Initial Weekly Certified release date August 7, 2002

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: Medium

Writeup By: Douglas Knowles

Technical Details

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Internet Security Threat Report, Volume 16