Sophos

W32/Anis-B

Category
Type
What to do
Prevalence low high

Summary

 
How it spreads
  • Removable storage devices
Affected operating systems Windows
Characteristics
  • Installs itself in the registry
Included in our products from July 2007 (4.19)
Protection available since 5 June 2007 08:34:54 (GMT)
Detected by All Sophos products

Action

More Information

W32/Anis-B is a worm for the Windows platform.

When first run W32/Anis-B copies itself to <Root>\pagefile.exe and creates the following files:

<User>\Application Data\Microsoft\Internet Explorer\Quick Launch\Internet Explorer.lnk
<Desktop>\Internet Explorer.lnk
<User>\Start Menu\Internet Explorer.lnk
<Root>\autorun.inf

The following registry entry is set:

HKCU\Software\Microsoft\Windows\CurrentVersion\Policies\NonEnum
{871C5380-42A0-1069-A2EA-08002B30309D}
1

W32/Anis-B attempts to periodically copy itself to removeable drives, including floppy drives and USB keys. The worm will attempt to create a hidden file Autorun.inf on the removeable drive and copy itself to the same location. The file Autorun.inf is designed to start the worm once the removeable drive is connected to a uninfected computer.

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