efcdc.dll - What is this?

This file registers as BHO on a computer I am fixing.... strange stuff.

The file has nothing as far as version information etc.....

Can't delete it in safe mode.....
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solution: It was a problem with Vundo.
It has this as a CID: 18898424-E3AB-4BA9-8E8D-5434B1CECA75

Used vundofix.exe

Worked :)