In Q3 2013, the number of mobile malware samples continued to grow:
Number of mobile malware samples in our collection
The distribution of mobile malware detected in Q3 2013 by type was similar to that in Q2:
Distribution of new mobile malware by behavior type, Q2 2013
The top position is still held by backdoors, although their share has fallen by 1.3 percentage points compared to Q2 2013. SMS Trojans (30%), which have gained 2.3 percentage points since the previous quarter, are in second place. As in Q2, they are followed by Trojans (22%) and Trojan-Spy malware, which accounts for 5% of the total. Together, backdoors and SMS Trojans make up 61% of all mobile malware detected during the third quarter – this is 4.5 percentage points more than in Q2.
It is common for a mobile malicious program to include several malicious components, which means backdoors often have SMS Trojan functionality and SMS Trojans may include sophisticated bot functionality.
TOP 20 mobile malicious programs
Rank Name % of all attacks
1 DangerousObject.Multi.Generic 29.15%
2 Trojan-SMS.AndroidOS.OpFake.bo 17.63%
3 Trojan-SMS.AndroidOS.FakeInst.a 8.40%
4 Trojan-SMS.AndroidOS.Agent.u 5.49%
5 Trojan.AndroidOS.Plangton.a 3.15%
6 Trojan-SMS.AndroidOS.Agent.cm 3.92%
7 Trojan-SMS.AndroidOS.OpFake.a 3.58%
8 Trojan-SMS.AndroidOS.Agent.ao 1.90%
9 Trojan.AndroidOS.MTK.a 1.00%
10 DangerousObject 1.11%
11 Trojan-SMS.AndroidOS.Stealer.a 0.94%
12 Trojan-SMS.AndroidOS.Agent.ay 0.97%
13 Exploit.AndroidOS.Lotoor.g 0.94%
14 Trojan-SMS.AndroidOS.Agent.a 0.92%
15 Trojan-SMS.AndroidOS.FakeInst.ei 0.73%
16 Trojan.AndroidOS.MTK.c 0.60%
17 Trojan-SMS.AndroidOS.Agent.df 0.68%
18 Trojan-SMS.AndroidOS.Agent.dd 0.77%
19 Backdoor.AndroidOS.GinMaster.a 0.80%
20 Trojan-Downloader.AOS.Boqx.a 0.49%Statistics
In Q3 2013, the number of mobile malware samples continued to grow:
Number of mobile malware samples in our collection