I've read on the forum that avast 4.5 has decompression bomb protection.
well, I have a small zip file (1.3 mb) that once decompressed is about 18 mb, and when it is scanned is is recognised as decompression bomb.
I think that 18 mb should not be a problem, after all it isn't 1 gb of data (I can attach the file if needed).
in any case, after I get the message "unable to scan" I click on "action" button and select scan. then avast is blocked doing nothing: no cpu is used, no file is read (according to filemon). after 5 minutes on a centrino 1.5 ghz nothing happened. maybe the process is hung, so I click "cancel" on the "processing results" dialog: nothing happens... I have to kill the process using task manager. I think that at least the "cancel button" should work.
thanks.