1. Symantec/
  2. Security Response/
  3. W32.Masy.Worm


Risk Level 1: Very Low

May 6, 2002
February 13, 2007 11:55:09 AM
Also Known As:
WORM_MASANA.A, I-Worm.Masana
Systems Affected:

W32.Masy.Worm is a mass-mailing worm that sends itself to addresses that it finds in files that have an extension that contains the letters htm. It also makes use of the Deploit Exploit to execute with administrator rights. It will also attempt to add a user, masyanechkaa, with administrative rights.

It arrives in an email with the following characteristics:
Subject: Masyanya!
Attachment: Masyanya.exe

NOTE: The mass-mailing routine could not be reproduced in a controlled laboratory environment.

Antivirus Protection Dates

  • Initial Rapid Release version May 7, 2002
  • Latest Rapid Release version September 28, 2010 revision 054
  • Initial Daily Certified version May 7, 2002
  • Latest Daily Certified version September 28, 2010 revision 036
  • Initial Weekly Certified release date May 8, 2002
Click here for a more detailed description of Rapid Release and Daily Certified virus definitions.
Writeup By: Douglas Knowles

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2016 Internet Security Threat Report, Volume 21
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