North American Network Operators Group

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Re: Worm probes

  • From: Joseph McDonald
  • Date: Tue Sep 18 13:18:14 2001

spc> Has anyone else been seeing a dramatic increase in /scripts/.. NT worm
spc> probes this morning?  We're seeing about 8000/second, starting around 9:15

Yes. We are seeing it here bigtime.  Does anyone have any apache hacks
to lessen the impact?  One idea:  Once a probe is sent, the prober's
IP# is stored in a hash (perhaps in shared memory or a mmap'd file
that all children can share) and new connections from that IP are no
longer accepted.