[Snort-sigs] [Emerging-Sigs] Unusually small php puts

Joel Esler jesler at ...435...
Thu May 16 14:37:10 EDT 2013


I'm going to test it in our test systems James, we'll see how it goes.


On May 15, 2013, at 1:08 PM, James Lay <jlay at ...3266...> wrote:

> Last month (the 19th I think) I attending an all day security conference...it was pretty good.  One of the tell tale signs of C2 traffic was small php PUT's (according to one presenter), so here's a sig for that:
> 
> alert tcp $HOME_NET any -> $EXTERNAL_NET $HTTP_PORTS (msg:"POLICY Unusually small php PUT"; flow:to_server,established; content:"PUT"; http_method; http_uri; urilen:<10; classtype:misc-activity; sid:10000059; rev:1)
> 
> Might be useful, might not.  I'm embarrassed that it took me almost a month to get to my notes 8-|
> 
> James
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