Is it possible that it's coming back via Windows System Restore?
Totally impossible unless the user actually runs System Restore, and
the o.p. did not indicate that this was being done.
Try this:
Right-click on "My Computer", click on "Properties"
Click on the "System Restore" tab
Check the "Turn off System Restore" box
Click on "OK"
Re-boot into safe mode
Run cwshredder
Re-boot, re-scan to see if it worked
Turn System Restore back on
Never repeat never repeat never turn off System Restore on a system
that is infested with malware of any kind. Doing so could leave you
with a totally unusable system if the malware removal attempts get
botched in some way. An infested but still functional system is
infinitely better than an unusable one.
Items in System Restore are totally encapsulated and cannot possibly
reinfect the computer or spread to others unless and until System
Restore is run to backdate the system to an time when it was infected.
Once the system has been totally cleaned up and is operating
satisfactorily then it may be prudent to clean up System Restore.
However disabling is still not the best way of doing this. A better
method is to first create a new System Restore point and then use the
Advanced options in Disk Cleanup to remove all but the most recent
restore point.
Ron Martell Duncan B.C. Canada
--
Microsoft MVP (1997 - 2006)
On-Line Help Computer Service
http://onlinehelp.bc.ca
"Anyone who thinks that they are too small to make a difference
has never been in bed with a mosquito."