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Hacktool.JPEGShell

Risk Level 1: Very Low

Discovered:
September 25, 2004
Updated:
February 13, 2007 12:27:49 PM
Also Known As:
JpegOfDeath
Type:
Trojan Horse
Systems Affected:
Windows 2000, Windows 95, Windows 98, Windows Me, Windows NT, Windows Server 2003, Windows XP


Hacktool.JPEGShell is a Trojan horse program that can be used to generate .jpg files that exploit the Microsoft GDI+ Library JPEG Segment Length Integer Underflow vulnerability (described in the Microsoft Security Bulletin MS04-028).

The generated .jpg files are detected by Symantec Antivirus products as Trojan.Moo.

Antivirus Protection Dates

  • Initial Rapid Release version September 25, 2004
  • Latest Rapid Release version September 28, 2010 revision 054
  • Initial Daily Certified version September 25, 2004
  • Latest Daily Certified version September 28, 2010 revision 036
  • Initial Weekly Certified release date September 28, 2004
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: Easy

Damage

  • Damage Level: Low

Distribution

  • Distribution Level: Low
Writeup By: Fergal Ladley

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