Lightest one on resources I’ve tried so far is NOD32, and also the fastest when scanning on demand. But so far I’ve not met something coming somewhere close to the speed Avast!4 inspects a folder full of scannable files… response is almost instant, while with other programs you must light+smoke a cigarette before you have access to the folder.
And yes, I’m 100% sure it uses 946K of RAM. Light resource usage and good heuristics are F-Prot’s two good traits…
In fact, the Linux and Dos versions have an --ONLYHEUR switch, in which case it completely ignores its virus database and relies only on its advanced neural-network heuristics…
Very interesting to test out; doesn’t detect much less than the sig-based scanner…
Nod32 V2.0 is a good product, but i do not know if it support more Archive Packer than Avast( Avast support SFX Archives,which Nod doesn´t). Avast supports only some old Dos-Exepacker, but with the new Version(which will come soon i hope) Avast and Nod32 are equal.
BTW: Nod32 does not support UPX in all its versions right now, and no UPX-Dlls at all(AFAIK)