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Update:
The file crypt3.dll appears to be almost like a phantom. When I tried to email it to VirusTotal the email just sent with the file apparently uploaded and attached but when I looked in Sent Objects the email that was sent did not have an attachment.
So in summary:
- SuperAntiSpyware does not find the Trojan
- Avast does find the Trojan
- Security Task Manager identifies crypt3.dll as being a 92% dangerous file, but cannot delete/move it
- Upon Boot scan with Avast with Archive ON Trojan file is found but remains Access Denied
- crypt3.dll will not let itself be moved, copied or uploaded. It has no identifiable properties. It has next to zero mentions on the web apart from an ongoing epic saga here:
http://www.bleepingcomputer.com/forums/topic121819.html
We do not yet know:
- what Win32:BHO-KD is exactly as I haven’t found any sites that identify it.
- how to force ownership of the affected file so that we can quarantine it.
- what kind of file crypt3.dll is supposed to be: of what processes/applications it runs from or where it comes from.