Hello again , 

I'm using yara python to match rules against a lot of files . The problem 
is when the number of files gets big the performance is really horrible . 

When doing some profiling I noticed that when running 12319 files against 
about a 1000 to 1500 rules the yara callback function gets called 151991822 
times ?
Does the callback function get called for each matching string of a rule ? 
In my test I only had 28 matches so it's not that I'm doing any heavy 
lifting if there's a match
Is there anything I can do about this , or is this behaviour to be expected 
with this number of files ? I haven't compared against native yara yet ...

Thank you


 

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