Server crawls to a halt scanning large files with AMON

Discussion in 'NOD32 version 2 Forum' started by itpartners, May 27, 2007.

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  1. itpartners

    itpartners Registered Member

    Mar 11, 2007
    Hi everyone,

    We have a server running NOD32 (tested 2.5 and 2.7). It has some large online library/infobase files that are around 600MB. If we don't exclude these, NOD32 will scan the files and spend lots of CPU time doing it, slowing access to to the file and also potentially slowing down other operations on the server.

    We have of course excluded the files (interesting side: if a program access C:\PROGRA~1\file, a NOD32 exclusion for "C:\Program Files\file" won't exclude it!), but wonder what in particular about AMON's scanning causes this delay?

  2. ASpace

    ASpace Guest

    It depends on the file types . If they are some which are emulated by the advanced heuristics , it will take some more time but protection is better .

    You can very easily exclude the folder(s) which need not to be scanned or play with other options like making AMON not scan all file (but selected extensions) or disabling run-time packers , just to see if there is a difference.
  3. Marcos

    Marcos Eset Staff Account

    Nov 22, 2002
    A slowdown shouldn't occur if files are being open or accessed. On create, AMON is set to use Advanced Heuristics for an in-depth code emulation as well as runtime archive / sfx archive extraction which may cause a slowdown. You can try playing with these options, but disabling AH and runtime packers permanently is not recommended.
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