Download: NetQin Antivirus

Unfortunately, viruses are not limited to just computers. There are several malware designed specifically for mobile phones and can cause huge damage to your device.

Use NetQin Antivirus to prevent and make sure that your phone is clean. NetQin provides the same basic functions that the virus for the PC: you can easily review, update databases, select units and schedule scans. Also included is a new feature Anti-lost, that works on GPS and a full contact between servers in the backup system also ensures the full protection of user data.

Download  APK file

Android 1.5/1.6 version: http://www.megaupload.com/?d=UIZZYDEN  
Android 2.0/2.1/2.2 version: http://www.megaupload.com/?d=JFJ0YL8W