Signature update from new infections

definitions/patterns_re.txt

@@ -40,6 +40,9 @@ Googlebot['"]{0,1}\s*\)\){echo\s+file_get_contents
 #execute base64 code
 eVaL\(\s*trim\(\s*baSe64_deCoDe\(
 
+# execute escaped code
+exec\("(\\[0-9a-fx]{2,3}){3,}
+
 #
 if\s*\(\s*mail\s*\(\s*\$mails\[\$i\]\s*,\s*\$tema\s*,\s*base64_encode\s*\(\s*\$text
 
@@ -110,4 +113,7 @@ function\s+_[0-9]{8,}\(
 @include ".*?(\\x[0-9a-f]{2,}.*?){2,}.*?";
 
 # create_function is dangerous as like eval() see http://php.net/manual/en/function.create-function.php
-create_function\s*\(\s*['"]{2}
+create_function\s*\(\s*['"]{2}
+
+# control concated from cookie at the call
+(\$[a-z]{2,}=urldecode\(\$_COOKIE\['[a-z]{2,}'\]\);){3,}