Thanx for the info bean_man
This is my result:
File: SVICHHOST.exe
Status: OK(Note: this file has been scanned before. Therefore, this file's scan results will not be stored in the database)
MD5 3876f0891d03d8263875c26b396ce844
Packers detected:PE_PATCH.UPX, UPX
Scanner results
Scan taken on 10 Jan 2007 03:56:04 (GMT)
AntiVir=Found nothing
ArcaVir=Found nothing
Avast=Found nothing
AVG Antivirus=Found nothing
BitDefender=Found nothing
ClamAV=Found nothing
Dr.Web=Found nothing
F-Prot Antivirus=Found nothing
F-Secure Anti-Virus=Found nothing
Fortinet=Found nothing
Kaspersky Anti-Virus=Found nothing
NOD32=Found nothing
Norman Virus Control=Found nothing
VirusBuster=Found nothing
VBA32=Found nothing

send zipped file to samples@eset.com for further test. Please include the other suspicious files as well as well as the snapshot of the scan at jotti.
This will allow the pro to look deeper into it.