Re: What is this Very Stupid DOS Attack Script?

From: Dan Rue (
Date: 04/06/05

  • Next message: Devon H. O'Dell : "Re: What is this Very Stupid DOS Attack Script?"
    Date: Wed, 6 Apr 2005 11:28:11 -0500
    To: Martin McCormick <>

    On Wed, Apr 06, 2005 at 10:49:08AM -0500, Martin McCormick wrote:
    > We have been noticing flurries of sshd reject messages in
    > which some system out there in the hinterlands hits us with a flood of
    > ssh login attempts. An example:
    > Apr 6 05:49:42 dc sshd[12406]: Failed password for illegal user
    > bruce from port 32983 ssh2

    In my experience, these are just script kiddies goofing around. The
    only useful thing to do is to report them to abuse@ their ISP - this can
    actually be effective in some cases.

    $ whois
    OrgName: Internet Services, Inc.
    OrgID: TPCM
    Address: 1333 North Stemmons Freeway
    Address: Suite 110
    City: Dallas
    StateProv: TX
    PostalCode: 75207
    Country: US


    OrgAbuseHandle: ABUSE271-ARIN
    OrgAbuseName: Abuse
    OrgAbusePhone: +1-214-782-7802

    I'm sure his ISP would like to know about his behavior - send them a
    report of his attempts. Often in my opinion it's some 13 year old who
    doesn't realize he's not anonymous on the internet. It quickly becomes
    a tedious and thankless job, but it's the best weapon you have imo.

    Also, I find on some systems it's nice to do whitelisting with
    hosts.allow to only allow connectinos from certain addresses. Obviously
    that is not a solution for every system, but it can work well for some.

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  • Next message: Devon H. O'Dell : "Re: What is this Very Stupid DOS Attack Script?"

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