nod amazing slow when i unrar some files

Hi

i did notice an amazing slow down and some freezes when i unrar some file

for example ,i downloaded EssentialPIM free version ,portable

and i unrar on a folder , nod32 v4 start to use 50% and 100% of my cpus

on the same machine , for example avast 6 doesn't slow down

i use only 1 anti virus on my w7


what's wrong?
thanks

 

That's because the author compressed even system dlls with a runtime packer to reduce their size by about 400 kB What gives? Doing so is not recommended for two reasons:
1. using runtime packers increases scan times as av scanners need to unpack the file runtime. In the case of ESET, the file is also emulated by Adv. heuristics upon creation which is a time consuming operation.
2. using runtime packers increases the suspiciousness of the file. It can happen that sooner or later suspiciously looking files will be flagged by less or more av scanners as suspicious.

If you often run into this kind of issues, you can try disabling AH on file create and enable it for file execution only. I'd also strongly recommend using v5 (the current RC is perfectly stable) which supports scan optimizations thanks to the ESET Live Grid technology.

 

Avast does not scan all files, even it does not scan runtime packers by default.
Follow the suggestions from Marcos.

 

thanks Marcos
1) i tried to disable the Adv. heuristics , but it did not make different
2) runpacker are disabled by defalt

 

1, Did you check the option at Antivirus and Antispyware -> Real-time file system protection -> Advanced setup -> Additional TS parameters for newly created and modified files?
2, They are enabled by default, check the appropriate option at the above mentioned path.

 

yes i did
is better , but ekrn.exe jump to 50% for some seconds

but in preference the runpacker is disabled by default ,isn't it ?
the means is that nod32 realtime does not scan runpacker on execute
is dangerous ,isn't it?

where can i read about it ?
i read some reviews about nod32 v5 ,seems a great product ,but need 90mb of ram

 

No it uses around 70 MB of RAM, on some machines a little more on some a little less. But that's because everything is loaded into the memory to make it run as light as possible. And by doing so makes it one of the lightest when it comes to I/O usage.

 

http://www.eset.com/beta/antivirus-5-beta/

seems interesting

but

i did test on a pc with w7 and it uses at least 80mb , i don't think it's a Small System Footprint compared to the others

is the update limit still 60minutes?

i did not find a great improvement from nod32 v3 to v4
not because i'm a nostalgic but nod 2.7 was the best for many many users

 

Yes it is. Considering that the virtual memory usage is the same.
And I just explained why is uses that amount of RAM.

We are soon at Version 5

 

C'mon, this is simply a false statement.

(not trying to hijack this thread though).