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Thread: Hydra Problem

  1. #1
    Member s1lang's Avatar
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    Default Hydra Problem

    I've googled this problem and searched this forum.

    Basically I've been trying the brilliant DeIce Pentesting CDs however when it comes to searching for the SSH password and username, I choose all the correct settings ie.
    Code:
    hydra 192.168.1.100 ssh2 -v -l username -p/root/Desktop/wordlist.txt -e ns -t 68 -f
    username is the name of a username on the test - I do not want to spoil anything by putting the real one in.

    It starts to work correctly 3000 tries a minute however as each minute passes this number is reduced by approximately a half.
    5 minutes in I cannot connect to the internet, or anywhere on the network.

    The only way to resolve this is by unplugging my Linksy WR54GT Router - running the latest DD-WRT firmware for 10 seconds.

    Any advice would be greatly appreciated.
    Cheers
    Si

  2. #2
    Senior Member streaker69's Avatar
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    Default

    Quote Originally Posted by s1lang View Post
    I've googled this problem and searched this forum.

    Basically I've been trying the brilliant DeIce Pentesting CDs however when it comes to searching for the SSH password and username, I choose all the correct settings ie.
    Code:
    hydra 192.168.1.100 ssh2 -v -l username -p/root/Desktop/wordlist.txt -e ns -t 68 -f
    username is the name of a username on the test - I do not want to spoil anything by putting the real one in.

    It starts to work correctly 3000 tries a minute however as each minute passes this number is reduced by approximately a half.
    5 minutes in I cannot connect to the internet, or anywhere on the network.

    The only way to resolve this is by unplugging my Linksy WR54GT Router - running the latest DD-WRT firmware for 10 seconds.

    Any advice would be greatly appreciated.
    Cheers
    Si
    Sounds like you've effectively DoS'ed the router. Not all devices are able to handle a brute force and sometimes they'll just kill themselves trying.
    A third party security audit is the IT equivalent of a colonoscopy. It's long, intrusive, very uncomfortable, and when it's done, you'll have seen things you really didn't want to see, and you'll never forget that you've had one.

  3. #3
    Developer
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    Default

    Try decreasing the number of tasks.

  4. #4
    My life is this forum thorin's Avatar
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    Default

    The following would seem to apply:
    SPEED
    -----
    through the parallizing feature, this password cracker tool can be very fast, however it depends on the protocol. The fastest is generally POP3, then FTP, then Telnet, and the least IMAP.
    Experiment with the task option (-t) to speed thinks up! The higher - the faster;-) (but too high, and it disables the service) To prevent disabling you can now use the -g option for "slow-starts".
    I'm a compulsive post editor, you might wanna wait until my post has been online for 5-10 mins before quoting it as it will likely change.

    I know I seem harsh in some of my replies. SORRY! But if you're doing something illegal or posting something that seems to be obvious BS I'm going to call you on it.

  5. #5
    Member s1lang's Avatar
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    Default

    Thank you very much guys.

    I'll try all the above mentioned

  6. #6
    Senior Member PrairieFire's Avatar
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    Default

    Quote Originally Posted by streaker69 View Post
    Sounds like you've effectively DoS'ed the router. Not all devices are able to handle a brute force and sometimes they'll just kill themselves trying.
    I got tired of it happening across my network and just took the machines out of the network to resolve the issue. Rarely have problems with:
    Attacking machine --- Switch --- Victim machine.
    Μολὼν λαβέ - Great spirits encounter heavy opposition from mediocre minds.

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