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  3. Green_Caterpillar


Risk Level 1: Very Low

June 11, 1997
February 13, 2007 11:33:11 AM
Also Known As:
1575, 1577, 1591, Find
Systems Affected:

Green_Caterpillar is a virus that infects one command (.COM) and one executable (.EXE) file on the current drive every time a DIR or COPY command is executed. As a result, those commands take much longer than normal to run. Green_Caterpillar also produces an animated caterpillar that munches text on the screen, similar to the Centipede arcade game.

Antivirus Protection Dates

  • Initial Rapid Release version December 15, 2000
  • Latest Rapid Release version August 20, 2008 revision 017
  • Initial Daily Certified version December 15, 2000
  • Latest Daily Certified version August 20, 2008 revision 016
  • 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

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