F-Secure Virus Descriptions : SSIWG
VBS/SSIWG is a family of mass mailing worms generated with a virus
construction kit.
When VBS/SSIWG.A@mm is executed, it copies itself to the Windows
System directory as "Y072QWV.VBS". This file is also set to be
executed in each system startup via following registry key:
HKLM\Software\Microsoft\Windows\CurrentVersion\Run\
Next the worm copies itself to the root of each network drive, and
sends itself to all recipients in all address books using Outlook. Messages
that VBS/SSIWG.A sends have the following characterstics:
Subject: I'am missing U
Body: Could u remember me ?
Attachment: Y072QWV.VBS
Note: The name of the attachment can be other that "Y072QWV.VBS".
The worm uses a counter in the registry, so the mass mailing will
happen only every 20th run.
[Analysis: Sami Rautiainen, F-Secure; August 2001]
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