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chdir.42

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Description: Details
ChDir.422

These are memory resident dangerous viruses. They hook INT 21h and on calls to ChangeDir (AH=3Bh) DOS function they search for .COM- and .EXE-files and overwrite block of code in the file middle. The infected files are not recoverable.

Updated: 02/24/2006
Copyright @2006 chdir.42
Webroot Software Inc.