Persistent Platte Services - How do I delete?

[Bill]

I have a persistent pop up from Platte Services demanding money I don't owe.
It has invaded my desktop too and keeps returning after I delete the
shortcut.

Address in browser is: file:///C:/1276849409/LkgBDKxYQlhbHeKf.htm

I cannot find this file. Showing hidden files and using Vista search
reveals nothing.

How do I get rid of this little cheeky menace? Firewall is on, normal full
security, Windows Defender etc., etc.

[Malke]

You've definitely picked up a nasty bit of malware. There isn't much about
it pointing to definitive removal steps (Google search), so I'd start with
the standard methods:

Include scanning with David Lipman's Multi_AV and follow instructions to do
all scans in Safe Mode. Please see the special Notes regarding using
Multi_AV in Vista.

[mr jim]

I am having a really tough time getting rid of this.
I can't just delete the files, because "I don't have permissions" even when logged in as Administrator, and tried to change permissions in 'security' tab under properties.
PC Advisor forum detailed a program you could write in notepad and save as a .cmd file. Running this as administrator it returns 'Access Denied' when trying to delete the two files 'pm_proc1.exe' and 'pm_proc2.exe' from the Windows/system32 folder.
and to top it all off www.theeasypc.co.uk site is down, or doesn't exist any more.
Please help.

Jimothey

[mr jim]

UPDATE:

I have managed to get rid of all the files by using 'Malwarebytes' Anti-Malware'
this picked up on the files as a threat, but couldn't delete them. Another tool provided with this is called 'FileASSASSIN' and claimed to delete locked files. So I thought I had nothing to lose, so ran the tool, found the files and hit the delete key, and low and behold they deleted straight away!
I have rebooted my system and nothing comes up, so I hope that has got rid of the darn thing.