Risk Level 1: Very Low

February 13, 2007 11:54:11 AM
Also Known As:

Urkel is a virus that occupies 1K at the top of memory (640K mark). Any memory indicator shows the machine to have 1K less than it should. One way to verify that a computer is infected is to run DOS CHKDSK or MEM. The computer most likely has about 638K to 639K if the system is infected.

Antivirus Protection Dates

  • Initial Rapid Release version December 15, 2000
  • Latest Rapid Release version December 15, 2000
  • Initial Daily Certified version December 15, 2000
  • Latest Daily Certified version December 15, 2000
  • Initial Weekly Certified release date pending
Click here for a more detailed description of Rapid Release and Daily Certified virus definitions.

Threat Assessment


  • Wild Level: Low
  • Number of Infections: 0 - 49
  • Number of Sites: 0 - 2
  • Geographical Distribution: Low
  • Threat Containment: Easy
  • Removal: Easy


  • Damage Level: Low


  • Distribution Level: Low
Note: On May 14, 2015, modifications will be made to the threat write-ups to streamline the content. The Threat Assessment section will no longer be published as this section is no longer relevant to today's threat landscape. The Risk Level will continue to be the main threat risk assessment indicator.

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