rename large html file is very slow

Discussion in 'ESET NOD32 Antivirus' started by notuo, Feb 20, 2009.

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  1. notuo

    notuo Registered Member

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    Hi.

    I found this issue. I downloaded a large file in chunks from rapidshare. The file is named
    a.part1.rar.html to a.part5.rar.html

    When I click F2 in order to rename the file (take away the .html) to .rar ths thing is this process is very slow. Takes about 20-30 seconds to regain control of Windows Explorer.

    The last file (a.part5.rar.html) is 2MB large and this one takes a couple of seconds (not immediately) to be renamed but the rest are 100MB each.

    If I "return" the .rar to .rar.html is done almost immediately. This happens only renaming large html file (as far as I know)

    I found another issue as well. If I transfer a rar file to my machine takes for example 10 seconds but if the file is the original .rar.html takes at least 3 times (30 seconds).

    I received some tip in another forum regarding this as follows:
    So I tested and apparently NOD is the cause. When I disable the AV, the rename is in a blink.

    This happens with any file. I renamed a large 300MB .avi file to .rar.html and then rename it to .rar only and the result was more time waiting more than 60 seconds and the machine almost frozen.

    EDIT>>>
    I just tested this in an XP with NOD V3 also and the same result
    Also I tested with an exe file instead of a .rar and the same result

    Any idea is appreciatted,
     
    Last edited: Feb 20, 2009
  2. siberianwolf

    siberianwolf Registered Member

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    open the nod32 main interface, press F5 (to proceed to advanced setup), select "real-time file system protection setup", click "threatsense engine parameter setup", click "default", click "ok" two times, that's it.
     
  3. notuo

    notuo Registered Member

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    Hi siberianwolf, thanks for your answer but I have to said that my installation is pretty new and no changes were made to NOD. I review each screen of the procedure you mentioned and did it but no changes made by the DEFAULT button.

    So I am in the same situation.

    Any other ideas?
     
  4. siberianwolf

    siberianwolf Registered Member

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    do you have any other active real time scanner/system monitor other than nod32?

    and (when "hide extensions for known file types" is unchecked under folder options) what extension does that file seem to have?

    cuz, apparently it's not an html file.
     
  5. notuo

    notuo Registered Member

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    No, I don't have any other.

    As I mentioned, the file originally is a .RAR downloaded as .RAR.HTML This is the extension I see .rar.html

    Did you tried on your machine? Rename any large 100MB+ .rar to .rar.html and back again to .rar and you will notice the difference and the behavior I am describing. Also if I disable NOD this rename thing is as expected.

    Regards
     
  6. siberianwolf

    siberianwolf Registered Member

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    tested on three separate systems and no problems here. kinda strange you have no issues when nod32 disabled, though. must have something to do with heuristic.
     
  7. Marcos

    Marcos Eset Staff Account

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    Could you please PM me the link to the file in question so that I can check it myself? Only SFX archives are scanned internally when being copied.
     
  8. notuo

    notuo Registered Member

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    Hi Marcos.
    Code:
    The private messaging system is currently unavailable.
    But this doesn't matter. As I mentioned, any file can do. I just made another test. I rar an avi file and repeated the process...the same

    So If you have any .rar (preferable 100MB+) repeat the procedure.

    I'll wait until the messaging system is available and send you the last file I created.

    Thanks
     
  9. Marcos

    Marcos Eset Staff Account

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    PM sent :)
     
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