Security firm Kaspersky Lab has found that a Trojan malware spread on Android OS is being controlled by criminal groups.
Kaspersky Lab said that Obad.a, malware, which Android powered devices, was being distributed by botnets that exploited the user behaviour and infecting the computer to be part of the network.
The firm has revealed that from the total, 83 percent of attempted infections were recorded in Russia indicating that the infections are likely to be limited to Eastern European countries for the time being.
According to News24, the firm explained that the versions of Obad.a spread with Trojan-SMS.AndroidOS.Opfake.a, by sending malicious message to users, urging them to download it and if the link is clicked the file containing the malware is automatically downloading on the smartphone or tablet.
The malware then sends messages to all the user's contacts urging them to repeat the process.
The firm said that the code was spreading especially to devices running older versions of Android.
The report said that Kaspersky has informed Google and the vulnerability has been closed for versions of Android 4.3, but antivirus expert at the firm, Roman Unuchek said that only a small percentage of devices had the latest version of the OS.