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  3. W95.HybrisF


Risk Level 2: Low

November 17, 2000
February 13, 2007 11:35:43 AM
Also Known As:
W95.Hybris.Plugin, W32/Hybris@MM [McAfee], I-Worm.Hybris.dropper [Kaspers, WORM_HYBRIS.DR1 [Trend], Win32.Hybris.dr [Computer Asso
Systems Affected:
Windows 95, Windows 98, Windows Me

W95.HybrisF is one of the encrypted plug-ins that are downloaded by the W95.Hybris.gen worm.

What are Portable Executable (PE) files?
PE files are files that are portable across all Microsoft 32-bit operating systems. The same PE-format file can be executed on any version of Windows 95, 98, Me, NT, and 2000. Therefore, all PE files are executable, but not all executable files are portable.

A good example of a Portable Executable is a screen saver (.scr) file.

Antivirus Protection Dates

  • Initial Rapid Release version November 17, 2000
  • Latest Rapid Release version November 17, 2000
  • Initial Daily Certified version November 17, 2000
  • Latest Daily Certified version November 17, 2000
  • Initial Weekly Certified release date November 17, 2000
Click here for a more detailed description of Rapid Release and Daily Certified virus definitions.

Threat Assessment


  • Wild Level: Low
  • Number of Infections: More than 1000
  • Number of Sites: More than 10
  • Geographical Distribution: Medium
  • Threat Containment: Moderate
  • Removal: Moderate


  • Damage Level: Low


  • Distribution Level: High
Writeup By: SARC Engineer

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