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  1. #1
    Join Date
    Dec 2001

    Post SQL server worm throttles bandwidth

    an article regarding the Spida worm infecting sql servers.

    source: http://theregister.co.uk/content/55/25392.html

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    SQL server worm throttles bandwidth
    By John Leyden
    Posted: 22/05/2002 at 10:42 GMT

    Database admins are warned to bolt up the security of their Microsoft SQL Servers after the discovery of a worm which infects machines with default passwords.

    The Spida worm attempts to locate and login to Microsoft SQL Servers with the default SQL administrator account, "SA", and a blank password. SQL Server ships with this by default and if you've haven't got around to securing it properly, now would be a good time to do so.

    When a vulnerable computer is found, the worm infects it, sends its configuration and password information to an external host, and begins scanning for fresh targets.

    Although the Spida worm is not destructive to the infected host (aside from attempting to mail out its configuration), it may generate a damaging level of network traffic when it scans for additional targets. Spida comes with a multi-threaded scanner that searches both internal and external IP addresses for vulnerable servers.

    Security tools vendor ISS reports that the worm is responsible for "large amounts of Internet traffic as well as millions of TCP/IP probes".

    ISS advises that sysadmins should block port 1433 TCP traffic at the perimeter while ensuring that SQL servers have an administrative account properly secured and patched. Antivirus vendors are currently updating their definitions to pick up the exploit.

    Microsoft's advice on securing SQL Server can be found among the documents here.

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  2. #2
    Senior Member
    Join Date
    Apr 2002
    My firewall caught several port 1433 attempts while online tonight. I can totally believe bandwidth is being eaten up by this.

  3. #3
    Senior Member
    Join Date
    Apr 2002
    Humm then must be the leg of IP addys it has infected not getting any hits here nor at the logs at work. Then again the SQL was installed at work with an SA ...oops never choose the default install :-)
    I believe that one of the characteristics of the human race - possibly the one that is primarily responsible for its course of evolution - is that it has grown by creatively responding to failure.- Glen Seaborg

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