Our Mobile App Reputation data indicates that there are now one million mobile malware (such as premium service abusers) and high-risk apps (apps that aggressively serve ads that lead to dubious sites). Among the one million questionable apps we found, 80% perform outright malicious routines, while 20% exhibits dubious routines, which include adware, said Dhanya Thakkar, Managing Director, India & SAARC, Trend Micro.
Beyond the dangers malicious apps posed, mobile devices were also hit by threats that transcended platforms. These include a fake WhatsApp email containing a link that, when clicked using a mobile device, may lead to a site that hosts a premium service abuser. This was not the first time that mobile devices were targeted by multi-platform threats. In this case though, the attackers opted to use spam as infection vector instead of relying on a more direct approach like blackhat search engine optimization (SEO) or social media abuse.
Another cross-platform issue was the rise of the number of phishing sites specifically designed for mobile devices. According to data we gathered from January to September this year, we noted a 53% increase in the number of phishing sites compared with the same period last year. This quarter, 42% of the sites spoofed banks and other financial institutions.