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- Discovered:
- February 24, 2004
- Updated:
- February 13, 2007 12:18:01 PM
- Also Known As:
- W32/Netsky.c@MM [McAfee], Win32.Netsky.C [Computer Assoc, W32/Netsky-C [Sophos], WORM_NETSKY.C [Trend], I-Worm.Moodown.c [Kaspersky], I-Worm.NetSky.c [Kaspersky], W32/Netsky.C.worm [Panda]
- Type:
- Worm
- Systems Affected:
- Windows 2000, Windows 95, Windows 98, Windows Me, Windows NT, Windows Server 2003, Windows XP
W32.Netsky.C is a mass-mailing worm that uses its own SMTP engine to send itself to the email addresses it finds when scanning hard drives and mapped drives. This worm also searches drives C through Y for the folder names containing "Shar" and then copies itself to those folders.
The Subject, Body, and email attachment vary.
Notes:
- Symantec Consumer products that support Worm Blocking functionality automatically detect this threat as it attempts to spread.
- Rapid Release virus definitions, version 2/24/04 rev 32 (60224af or 20040224.032) and greater, detect this threat.
Symantec Security Response has received an additional W32.Netsky.C@mm sample which is ASPacked. Response has seen no customer submissions of this minor variant at this time. Virus definitions of version 2/25/2004 rev 19 (60225s) (20040225.019) or greater are required to detect this variation.
Antivirus Protection Dates
- Initial Rapid Release version February 25, 2004
- Latest Rapid Release version February 25, 2004
- Initial Daily Certified version February 25, 2004
- Latest Daily Certified version February 25, 2004
- Initial Weekly Certified release date February 25, 2004
Click here for a more detailed description of Rapid Release and Daily Certified virus definitions.
Threat Assessment
Wild
- Wild Level: Medium
- Number of Infections: More than 1000
- Number of Sites: More than 10
- Geographical Distribution: Low
- Threat Containment: Easy
- Removal: Moderate
Damage
- Damage Level: Low
Distribution
- Distribution Level: High
Writeup By: Tony Lee
