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blocking Code Red Worm?

Hi, I've been using ASL at home for a few weeks.

Today, at work, our IIS server has started crashing due to the Code Red worm attacking it, even though we've already put in all the MS fixes.

I'm think using the reverse (transparent) proxy in ASL might work if these url patterns could be blocked with squid or the ad zapper.

Or, if a packet filter exists that could drop these packets.

Anyone know if this is feasible with ASL?

The requests come in on port 80, and look like this:
2001-07-19 16:19:23 212.54.122.156 W3SVC30 serverip GET /default.ida NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN
NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN
NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN
NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN 
NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN%
u9090%u6858%ucbd3%u7801%u9090%u6858%ucbd3%u78
01%u9090%u6858%ucbd3%u7801%u9090%u9090%u8190%
u00c3%u0003%u8b00%u531b%u53ff%u0078%u0000%u00 
 =a 404 604 4039 19657 - -

Thank you,
Barry

[ 21 July 2001: Message edited by: barrygould ]


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