Update Android_Drendoid_RAT.yar

Mobile_Malware/Android_Drendoid_RAT.yar

@@ -2,7 +2,7 @@
     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 Dendroid
+rule Dendroid : android
 {
 	meta:
 	author = "https://twitter.com/jsmesa"
@@ -19,7 +19,7 @@ rule Dendroid
 
 }
 
-rule Dendroid_2
+rule Dendroid_2 : android
 {
 	meta:
 	author = "https://twitter.com/jsmesa"
@@ -33,7 +33,7 @@ rule Dendroid_2
 
 }
 
-rule Dendroid_3
+rule Dendroid_3 : android
 {
 	meta:
 	author = "https://twitter.com/jsmesa"