GPU Password Recovery For Rar Archives

Martin Brinkmann
Sep 5, 2009
Software, Windows
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1

The developer provides some plain numbers to show the effectiveness of using the GPU to recover a rar password with four characters:

  • ~168 passwords per second on single core of Q6600 @ 2.4Ghz (crark's result)
  • ~325 passwords per second on 8600 GT
  • ~3120 passwords per second on ATI HD4850
  • ~2075 passwords per second on GTX260/192SP

The performance of the listed ATI card is almost 20 times that of a password recovery where only the cpu is used. The password recovery software is a command line utility and the developer is offering extensive information on the possible parameters that can be used to recover the password. The suggested length of the password should not exceed six characters although it is theoretically possible to start a password recovery for a password with up to 17 chars.

The basic command for the password recovery is:

igrargpu.exe [switch:param] filename.rar

The command

igrargpu.exe /a:b /c:s /min:1 /max:4 archive.rar

will for example check all four letter combinations of lower case Latin characters. Known characters of the password can be added to the command to speed up the recovery attempt.It is advised to check the readme for a detailed overview of all possible parameters. The password recovery program can also use a dictionary based attack with rules. RAR GPU Password recovery should work on most versions of the Microsoft Windows operating system. The portable software is available for download at the developer's website.

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Comments

  1. Anonymous said on March 9, 2023 at 1:52 pm
    Reply

    Does it come back after every “moment” update?

  2. Baloney said on March 9, 2023 at 2:23 pm
    Reply

    Yeah right.. Like this is going to stop defender from running =) This is comedy gold right here.

  3. Anonymous said on March 9, 2023 at 3:25 pm
    Reply

    no ‘about the author’ paragraph?

  4. Gregory said on March 9, 2023 at 4:19 pm
    Reply

    For permanent disable defender is if removed complete from system no just change permission folder.

    Just this is joke.

  5. moi said on March 9, 2023 at 5:57 pm
    Reply

    simpler, load Autoruns (SysInternals)
    – filter “Defender”
    – untag all entries
    – reboot
    nothing has changed since my 1st modification years ago

  6. John G. said on March 9, 2023 at 6:32 pm
    Reply

    I wouldn’t disable Defender imho, it has too many hidden roots inside Windows itself. One time I tried to uninstall it using brute force scripts and then the Onedrive feature stopped working definitely. A reinstallation was needed and since those times I prefer to maintain Defender untouched. It’s a better method to install another antivirus and it will disable Defender in a safer and easier mode (e.g., Avast is the best in this way, and also Panda Cloud Free is good too).

  7. boris said on March 10, 2023 at 12:19 am
    Reply

    You can not stop defender from running in background or remove it without some penalty. All you can do is to limit telemetry.

    1. TelV said on March 10, 2023 at 4:52 pm
      Reply

      @borts,

      It’s probably Smartscreen which is preventing WD from being disabled. Get rid of that and the problem should be solved: https://thegeekpage.com/disable-windows-defender-smartscreen/#How_to_disable_the_Windows_Defender_SmartScreen_via_Local_Group_Policy_Editor

  8. hoho said on March 10, 2023 at 1:47 pm
    Reply

    Remove Windows and go for Linux.

    1. basingstoke said on March 10, 2023 at 2:51 pm
      Reply

      Linux sucks dude. Besides it’s not comparable to Windows, these OSes are in different classes entirely.

      1. Derp said on March 10, 2023 at 4:36 pm
        Reply

        I use Linux as my daily driver. It’s far more stable than Windows. When’s the last time you used Linux, 2010?

      2. Bromosexual said on March 11, 2023 at 2:04 am
        Reply

        @basingstoke

        You’re right, dude. Bro, linux is just a bunch of code that starts before the OS, dude. Brobrodude, that shit ain’t even got emojis, dudebrodudeman! Dudebro, it’s no way near as cool as Windows with its hardcoded abilities to make money off the user, bro. Yo brodude man, you’re the coolest dude ever man, bro. Dude.

      3. basingstoke said on August 16, 2023 at 7:20 pm
        Reply

        Lol what? Windows 7 doesn’t come with any Emojis

  9. TelV said on March 10, 2023 at 4:46 pm
    Reply

    Download Autoruns and remove the checkmark from Windows Defender. It doesn’t remove it, but it will never run. https://learn.microsoft.com/en-us/sysinternals/downloads/autoruns

  10. Simon said on March 10, 2023 at 8:37 pm
    Reply

    Just use “Defender Control”:
    https://www.sordum.org/9480/defender-control-v2-1/comment-page-1/#comments

    Per this video,
    https://www.youtube.com/watch?v=CLIjr7FyxZ8
    it also works on Windows 11 too…

  11. Someone said on March 10, 2023 at 9:26 pm
    Reply

    Win Defender, is completly the most succesful free-built in antivirus of Microsoft. Really nice product. Saved my ass a lot of times. Has updated malware database, completly strong defence
    from whatever smart screen disables. Or if you want better and more upgrated (paid) program,
    you can go further. But defender is always on your side.

  12. CalixtoWVR1 said on March 10, 2023 at 10:03 pm
    Reply

    Why would one disable Windows (or Microsoft) Defender in the first place?. I consider this to be playing with fire big time. Everybody knows that if one is using another A-V, Defender will be disabled on its own and won’t be in one’s way.

  13. Ed D said on March 10, 2023 at 11:09 pm
    Reply

    Why would I want to disable Windows Defender in the first place? It’s a great anti virus in my opinion. Been using it since Windows 8 and and never had a problem or a virus. Why mess with a good thing, if it ain’t broke don’t fix it.

  14. owl said on August 17, 2023 at 1:57 am
    Reply

    How a ridiculous article!
    I am thoroughly stunned.

    Why Should You Disable First-Party Windows Defender?
    I can only think that it is “malice or perversely intention (want you to buy a third-party AV where you can expect a back margin)” to guide invalidation without showing the premise.
    No sane company will use third-party closed source programs (such as AV).

    As I thought, “Ghacks Technology News” seems to be coming to downfall.

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