Update and rename CorkowDLL to CorkowDLL.yar

malware/CorkowDLL → malware/CorkowDLL.yar

+/*
+    This Yara ruleset is under the GNU-GPLv2 license (http://www.gnu.org/licenses/gpl-2.0.html) and open to any user or organization, as    long as you use it under this license.
+
+*/
 rule CorkowDLL {
 	meta:
 		description = "Rule to detect the Corkow DLL files"