Re: All Machines on Lan go Down

Josh Hillman ( (no email) )
Thu, 15 May 1997 10:40:30 -0400

Unless there's some filter setup somewhere to block data on port 139,
anyone using Windows 95 or Windows NT (3.51 or 4.0) will be affected by
this. MS released a hotfix for this a few days ago for NT 3.51 with SP5 as
well as for NT 4.0 with SP2. A fix for 95 is in the works and is
apparently expected to be released shortly.

For info, see:

From: Michael J. Gibbs <>
If someone is hitting all of the IP addresses on a network with this type
of attack, will it affect the customer at the end of a PPP session?

From: Jeff Woods[]

At 06:34 PM 5/14/97 -0700, you wrote:

>Strange occurence happened today, all of my NT 4.0 machines on the lan
>died with a blue screen full of codes -- all win 95 machines came up
>with the same error. Funny thing is that my webserver that is NT 3.51
>sp5 didn't even hiccup.
>All of these machines are connected to the Net. Was this some type of
>attack? This happened to all machines at the same time.

Yes -- you got hit with the latest MS bug, the out of band bug. A hotfix
is available for the NT machines, and should be available shortly for the
95 machines.

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