Recently, the "Mobile Security Report for the First Half of 2018" was released. The report was released by Tencent Mobile Manager and Tencent Security Joint Lab Mobile Security Lab.
According to the report, the number of virus-infected users in the first half of 2018 was nearly 61,668,400. With the virus family using a variety of virus escape technologies, the ability to bypass killing, concealment and anti-virus software is greatly enhanced. A virus can lurk for one year or even a few. For a long time, it is not perceived and captured by traditional anti-virus software, and the number of users affected often reaches one million and ten million.
In the first half of 2018, the number of mobile phone virus infections per month fluctuated around 10 million. Among them, the number of virus infections was the highest in February, which was 116.226 million. The lowest number of infections in May was 9.20 million.
Geographically, Guangdong ranks first in the top ten provinces with virus-infected users. The province with the highest number of virus-infected users in the first half of 2018 is still Guangdong, accounting for 9.97%. Zhejiang, Henan and Jiangsu are also behind Guangdong. In recent years, the number of infected provinces accounted for 6.28%, 6.20% and 6.14% respectively.
The most serious areas of payment for viral infections were Beijing, Guangdong and Jiangsu, accounting for 10.29%, 7.94% and 5.97% respectively.
Variety of Trojan virus transmission forms
In recent years, some lawless elements have bundled popular TV dramas, implanting Trojan viruses in mobile applications, and tricking users into downloading. The report shows that in the first half of 2018, Android added 4,687,000 new virus packages, down 47.86% year-on-year. The number of packages increased by nearly 2,700, a year-on-year decrease of 47.51%. The number of virus-infected users was nearly 6106.84 million, of which the province with the most infections was Guangdong. Although the trend of new Trojan virus slowed down, the damage was still not underestimated due to its large base.
The Trojan virus is mainly based on tariff consumption, malicious deduction and privacy; the source includes software bundling, electronic market, network disk transmission, mobile resource station, QR code, ROM built-in and mobile phone forum.
Clicking on the unidentified pop-up window on the webpage may cause the user's mobile phone to be infected with the Trojan virus, and then encounter the risk of advertising harassment and malicious deduction. The report shows that in the first half of 2018, Tencent Security Joint Lab detected a total of 98.7660 million malicious websites. A total of 269.399 billion malicious websites were intercepted. Among them, pornographic websites are the most common types of malicious websites, accounting for more than half; gaming websites and information scams ranked second, third.
Although the relevant departments of the state have increased the intensity of 'striking the black,' the pornographic websites are still banned. The harm is not only to spread pornographic information, but also to endanger the mental health of users; it may also cause the user's mobile phone to infect the Trojan virus and suffer from malicious pop-ups. According to the reporter, at present, Tencent Mobile Manager has exported SDK capabilities to QQ browsers, helping to intercept and identify various malicious websites, and ensuring users to browse related web pages safely.
Reporting nearly 900 million spam messages
Harassing fraudulent calls and spam messages has always been a problem for mobile phone users, not only causing unnecessary harassment, but also the potential for fraud risks. Users may suffer property damage. The report shows that in the first half of 2018, Tencent mobile phonekeepers received The number of harassing calls reported by users was nearly 143 million times, a decrease of 39.23% compared with the same period last year; among them, the number of fraudulent calls was nearly 29,750,200. It is necessary to be wary that criminals often transfer funds to safe accounts, pretend to be leaders, ask for verification codes, and I am breaking the law and the network. The order has problems, etc., to trick the user into transferring money.
Spam messages are also a major source of user harassment. In the first half of 2018, users reported nearly 889 million spam messages through Tencent mobile housekeepers, of which advertising messages accounted for 96.71%.
High-risk WiFi in developed regions
In recent years, it has become the norm for users to go out and connect to public places free WiFi hotspots.
The report shows that the number of public WiFi that has been discovered in the first half of 2018 has shown a small steady increase. The total amount of public WiFi discovered in June increased from 810 million in January to 894 million, and is widely distributed in shopping malls, hotels, subways, airports. Such places.
The coverage of public WiFi is getting wider and wider. Users need to be alert to the threat of risk WiFi when they go out to the Internet. The report shows that in the first half of 2018, the risk WiFi accounted for 40.87% of the public WiFi. Among them, high-risk WiFi accounted for 0.21%, and ARP Attacks and virtual WiFi are dominant. High-risk WiFi attacks are dominated by ARP attacks, accounting for 69.04%, followed by false WiFi, accounting for 27.62%, and a small number of attacks are DNS attacks, accounting for 3.33%. In view of the fact, the provinces with the highest distribution of high-risk WiFi are Guangdong and Jiangsu, and the most distributed cities are Shanghai, Chengdu and Chongqing.
Tencent security experts suggest that when connecting to the public network, mobile payment is not allowed, so that information such as account passwords and passwords are not stolen.