https://play.google.com/store/apps/details?...tispycell&hl=en
There is a free and a paid version. What this program does it 2 things.

1. check for spyware
2. check the permission rights for all apps on your android for anything that looks suspicious
1 is obvious, but 2 is stuff like record audio for voice calls..... using your phone camera to take pictures of you .... tracking your location ..... knowing your android device id..... So whenever you install apps left and right without reading what permissions your giving these apps ... this program helps you track what apps have too much power, and you can then investigate whether that app legitimately needs it, or whether it is spyware it's your call.

With this app i am not left to wonder whether i got something lurky running on my android.
For anti virus i am using kaspersky mobile security
https://play.google.com/store/apps/details?...e=search_result
Another good app is connection tracker. It investigates where your android traffic is going to, so you can find out if it's suspicious activity and whether your mobile phone may have compromised
https://play.google.com/store/apps/details?...ackerfree&hl=en
Also .....Android malware's dirty secret: Repackaging of legit apps with some nasty stuff
Source:
http://www.zdnet.com/android-malwares-dirt...pps-7000000886/
So it's good to be safer than sorry 

this awake