Data stealing from mobiles increased by 10.8% in Q315 compared the previous three months.
According to Kaspersky Lab’s ‘ IT Threat Evolution report for the third quarter of 2015’, 323,374 new malicious mobile programmes were detected, which was an addition to 1.6 million malicious installation packages, and 2,516 mobile banker Trojans.
During Q3, the company received 5.68 million notifications about attempted malware infections that were designed to steal money from online bank accounts.
However, the security firm said that the number of attempted attacks on online banking were slightly fewer when compared to the 5.9 million notifications it received during Q2.
Banking customers in Austria were the most targeted with 5% of all attacks, this was followed by Singapore with 4.2% and Turkey where 3% of the online banking customers were targeted.
Trojan-Downloader.Win32.Upatre was the most used malware, with 63.1% of all the attempted attacks using the malware.
Mobile adware was another popular method used by criminals to steal data, and it accounted for more than half of all detected mobile threats.
While the usage of superuser privileges (root access) was high, usage of SMS Trojans decreased with only 6.2% of mobile threats detected using the method.
The report also highlighted that 75.4 million unique URLs were found to be malicious by web antivirus components, which was 16% higher in comparison to Q2.
Kaspersky Lab principal senior security researcher David Emm said: "Malicious mobile programs are on the rise and in countries where online banking is popular, people are at considerable risk from Trojans looking to target them."
"With 5.6 million cases of attempted theft from online bank accounts, and cybercriminals continually developing sophisticated attacks, the use of high quality cybersecurity products has never been more important," says the report.
Kaspersky Lab has also worked on a joint investigation with Panda Security and the Dutch National High Tech Crime Unit (NHTCU) to find out the suspects involved in the CoinVault ransomware attacks.
The attack targeted thousands of computers worldwide where criminals demanded bitcoins from users to decrypt files.