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#1 harrywaldron


    Security Reporter

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Posted 21 April 2004 - 06:19 AM

Symantec has declared both the "X" and "Y" variants of Netsky as MEDIUM RISK due to extensive occurrences in the wild.


W32.Netsky.Y@mm is a variant of W32.Netsky.X@mm that scans for the email addresses on all non-CD-ROM drives on an infected computer. Then, the worm uses its own SMTP engine to send itself to the email addresses that it finds. This threat is compressed with PE-Pack.

The format of the email is:

Subject: Delivery failure notice (ID-<random number>)
Attachment: www.<random domain name>.<random username>.session-<random number>.com

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