The system can not find the file specified

HELP

its a (malware type adware malware name NSIS Agent-F [Adw] ) and i click move to chest then a think pops up saying

avast!: The system can not find the file specified

cannot proses (file name here)

then it has a box OK
so i click that and then the same thing pops up again and click move to chest and same thing again

avast!: The system can not find the file specified

i’m not an ekspert, but i think it can be a variation of this http://www.viruslist.com/en/viruses/encyclopedia?virusid=69334
and it will download something like this http://www.viruslist.com/en/viruses/encyclopedia?virusid=103361

Try these
MalwareBytes Antimalware http://malwarebytes.org/
SuperAntispyware http://superantispyware.com/

Hmmm… maybe the file is a temporary one and got deleted.
I suggest a boot time scanning with avast.

What is the full path, as shown in the virus warning window, of the infected object?