# 6G FIREWALL/BLACKLIST
# @ https://perishablepress.com/6g/
# více informací na https://perishablepress.com/6g/

# 6G:[QUERY STRING]
<IfModule mod_rewrite.c>
	RewriteEngine On
	RewriteCond %{QUERY_STRING} (eval\() [NC,OR]
	RewriteCond %{QUERY_STRING} (127\.0\.0\.1) [NC,OR]
	RewriteCond %{QUERY_STRING} ([a-z0-9]{2000,}) [NC,OR]
	RewriteCond %{QUERY_STRING} (javascript:)(.*)(;) [NC,OR]
	RewriteCond %{QUERY_STRING} (base64_encode)(.*)(\() [NC,OR]
	RewriteCond %{QUERY_STRING} (GLOBALS|REQUEST)(=|\[|%) [NC,OR]
	RewriteCond %{QUERY_STRING} (<|%3C)(.*)script(.*)(>|%3) [NC,OR]
	RewriteCond %{QUERY_STRING} (\\|\.\.\.|\.\./|~|`|<|>|\|) [NC,OR]
	RewriteCond %{QUERY_STRING} (boot\.ini|etc/passwd|self/environ) [NC,OR]
	RewriteCond %{QUERY_STRING} (thumbs?(_editor|open)?|tim(thumb)?)\.php [NC,OR]
	RewriteCond %{QUERY_STRING} (\'|\")(.*)(drop|insert|md5|select|union) [NC]
	RewriteRule .* - [F]
</IfModule>

# 6G:[REQUEST METHOD]
<IfModule mod_rewrite.c>
	RewriteCond %{REQUEST_METHOD} ^(connect|debug|move|put|trace|track) [NC]
	RewriteRule .* - [F]
</IfModule>

# 6G:[REFERRER]
<IfModule mod_rewrite.c>
	RewriteCond %{HTTP_REFERER} ([a-z0-9]{2000,}) [NC,OR]
	RewriteCond %{HTTP_REFERER} (semalt.com|todaperfeita) [NC]
	RewriteRule .* - [F]
</IfModule>

# 6G:[REQUEST STRING]
<IfModule mod_alias.c>
	RedirectMatch 403 (?i)([a-z0-9]{2000,})
	RedirectMatch 403 (?i)(https?|ftp|php):/
	RedirectMatch 403 (?i)(base64_encode)(.*)(\()
	RedirectMatch 403 (?i)(=\\\'|=\\%27|/\\\'/?)\.
	RedirectMatch 403 (?i)/(\$(\&)?|\*|\"|\.|,|&|&amp;?)/?$
	RedirectMatch 403 (?i)(\{0\}|\(/\(|\.\.\.|\+\+\+|\\\"\\\")
	RedirectMatch 403 (?i)(~|`|<|>|:|;|,|%|\\|\{|\}|\[|\]|\|)
	RedirectMatch 403 (?i)/(=|\$&|_mm|cgi-|muieblack)
	RedirectMatch 403 (?i)(&pws=0|_vti_|\(null\)|\{\$itemURL\}|echo(.*)kae|etc/passwd|eval\(|self/environ)
	RedirectMatch 403 (?i)\.(aspx?|bash|bak?|cfg|cgi|dll|exe|git|hg|ini|jsp|log|mdb|out|sql|svn|swp|tar|rar|rdf)$
	RedirectMatch 403 (?i)/(^$|(wp-)?config|mobiquo|phpinfo|shell|sqlpatch|thumb|thumb_editor|thumbopen|timthumb|webshell)\.php
</IfModule>

# 6G:[USER AGENT]
<IfModule mod_setenvif.c>
	SetEnvIfNoCase User-Agent ([a-z0-9]{2000,}) bad_bot
	SetEnvIfNoCase User-Agent (archive.org|binlar|casper|checkpriv|choppy|clshttp|cmsworld|diavol|dotbot|extract|feedfinder|flicky|g00g1e|harvest|heritrix|httrack|kmccrew|loader|miner|nikto|nutch|planetwork|postrank|purebot|pycurl|python|seekerspider|siclab|skygrid|sqlmap|sucker|turnit|vikspider|winhttp|xxxyy|youda|zmeu|zune) bad_bot
	
	# Apache < 2.3
	<IfModule !mod_authz_core.c>
		Order Allow,Deny
		Allow from all
		Deny from env=bad_bot
	</IfModule>

	# Apache >= 2.3
	<IfModule mod_authz_core.c>
		<RequireAll>
			Require all Granted
			Require not env bad_bot
		</RequireAll>
	</IfModule>
</IfModule>