Create Android_Dectus_rswm.yar

Mobile_Malware/Android_Dectus_rswm.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.
+*/
+
+/*
+	Androguard module used in this rule file is under development by people at https://koodous.com/.
+
+	You can get it, along with installation instructions, at https://github.com/Koodous/androguard-yara
+*/
+
+import "androguard"
+
+rule Android_Dogspectus_rswm
+{
+	meta:
+		author = "https://twitter.com/5h1vang"
+		description = "Yara rule for Dogspectus intial ransomware apk"
+		sample = "197588be3e8ba5c779696d864121aff188901720dcda796759906c17473d46fe"
+		source = "https://www.bluecoat.com/security-blog/2016-04-25/android-exploit-delivers-dogspectus-ransomware"
+
+	strings:
+		$str_1 = "android.app.action.ADD_DEVICE_ADMIN"
+		$str_2 = "Tap ACTIVATE to continue with software update"
+		
+		
+	condition:
+		(androguard.package_name("net.prospectus") and
+		 androguard.app_name("System update")) or
+		 
+		androguard.certificate.sha1("180ADFC5DE49C0D7F643BD896E9AAC4B8941E44E") or
+		
+		(androguard.activity(/Loganberry/i) or 
+		androguard.activity("net.prospectus.pu") or 
+		androguard.activity("PanickedActivity")) or 
+		
+		(androguard.permission(/android.permission.INTERNET/) and
+		 androguard.permission(/android.permission.WAKE_LOCK/) and 
+		 androguard.permission(/android.permission.RECEIVE_BOOT_COMPLETED/) and
+		 all of ($str_*))
+		 	
+		
+}