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- Discovered:
- February 26, 2003
- Updated:
- February 13, 2007 11:43:35 AM
- Type:
- Worm
- Systems Affected:
- Windows 2000, Windows 95, Windows 98, Windows Me, Windows NT, Windows XP
W32.HLLW.Cydog@mm is a mass-mailing worm that spreads by email. This worm uses Microsoft Outlook to send itself to the contacts in the Outlook Address Book:
- The email will have a random subject chosen from a predetermined selection.
- The attachment will have a random file name chosen from a predetermined selection, with a file extension of .exe or .scr.
W32.HLLW.Cydog@mm also attempts to spread using the KaZaA, eDonkey2000, Bearshare, Grokster, and Morpheus file-sharing networks. The worm attempts to terminate the active processes of various antivirus programs and system utilities.
W32.HLLW.Cydog@mm also attempts to delete:
- Program files that Norton AntiVirus products use
- Files shared by various Symantec programs, including the virus definition files
W32.HLLW.Cydog@mm is a Visual Basic application that is packed with UPX 1.24.
Antivirus Protection Dates
- Initial Rapid Release version February 26, 2003
- Latest Rapid Release version September 28, 2010 revision 054
- Initial Daily Certified version February 26, 2003
- Latest Daily Certified version September 28, 2010 revision 036
- Initial Weekly Certified release date February 26, 2003
Click here 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: Moderate
Damage
- Damage Level: High
Distribution
- Distribution Level: High
Writeup By: Serghei Sevcenco
