Scoring macro for posting hosts?

Hello,

Some of the newsgroups I subscribe to are suffering badly from splorge
attacks - large number of messages sent in quick succession from a
single compromised host.

Adding a scorefile entry against the NNTP-Posting-Host header kills
each individual splorge, but it needs to be done often enough to make
it a pain to do it manually each time.

Can one of the slang-masters here provide a little macro that with one
key press will add a scorefile entry of -9999 for messages in the
current group whose NNTP-Posting-Header matches that in the currently
displayed post (say expiring in 7 days)?

Thanks in advance!

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