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  3. W32.Korgo.F

W32.Korgo.F

Risk Level 2: Low

Discovered:
June 1, 2004
Updated:
February 13, 2007 12:23:55 PM
Also Known As:
Worm.Win32.Padobot.e [Kaspersk, W32/Korgo.worm.g [McAfee], WORM_KORGO.F [Trend]
Type:
Worm
Systems Affected:
Windows 2000, Windows XP


W32.Korgo.F is a minor variant of W32.Korgo.E. It is a worm that attempts to propagate by exploiting the Microsoft Windows LSASS Buffer Overrun Vulnerability (described in Microsoft Security Bulletin MS04-011) on TCP port 445. It also listens on TCP ports 113, 3067, and other random ports.


Notes:
  • Rapid Release virus definitions version 6/2/2004 rev 17 (sequence number 31552) or greater detect this threat specifically as W32.Korgo.F.
  • Virus definitions version 60408w (extended version 4/8/2004 rev. 23) detect this threat as Bloodhound.Packed.


Symantec Security Response has developed a removal tool to clean infections of W32.Korgo.F.

Antivirus Protection Dates

  • Initial Rapid Release version June 2, 2004
  • Latest Rapid Release version September 28, 2010 revision 054
  • Initial Daily Certified version June 2, 2004
  • Latest Daily Certified version September 28, 2010 revision 036
  • Initial Weekly Certified release date June 2, 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: 50 - 999
  • Number of Sites: More than 10
  • Geographical Distribution: Low
  • Threat Containment: Easy
  • Removal: Moderate

Damage

  • Damage Level: Medium

Distribution

  • Distribution Level: Medium
Writeup By: Maryl Magee

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