iis - Rewrite Rule Spaces -

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i created rewrite rule in iis because of russian spammers rule doesn't seem work correctly because of space between 2 parts search , wondering how overcome this

<rule name="russian referral spam" stopprocessing="true"> <match url=".*" /> <conditions>     <add input="{http_user_agent}" pattern="windows+2002|windows+2003|windows+2004|windows+2005|windows+2006|windows+2007|windows+2009" /> </conditions> <action type="redirect" url="https://stackoverflow.com" redirecttype="permanent" /> </rule>

before, never included spaces between windows , fake version:

windows 2002|windows 2004...

and pickup on windows in useragent , redirect them. adding + rule backslash before it's not affecting russian spammers. how change above rule searches 'windows 2002|windows 2004|windows 2005|windows 2006... if in url add %20

here few real examples of russian spam user agents:

mozilla/7.0 (compatible; msie2.00; windows 2005) mozilla/8.0 (compatible; msie3.00; windows 2006) mozilla/6.0 (compatible; msie7.00; windows 2008) mozilla/4.0 (compatible; msie4.00; windows 2005)

i not using apache iis no mod-rewrite rules, please.

thanks in advance

update:

on expert exchange says try windows\ 2006 or windows\s2006. try these waiting spammers return 100% answer know within iis can test rules try also

you correct. space in regexp can use \ or \s. rule can that:

<rule name="russian referral spam" enabled="true" stopprocessing="true">     <match url=".*" />     <conditions>         <add input="{http_user_agent}" pattern="windows\s(2005|2008)" />     </conditions>     <action type="redirect" url="https://stackoverflow.com" redirecttype="permanent" /> </rule>




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