The rooting tool TowelRoot is made by GeoHot that targets CVE-2014-3153 local privilege escalation vulnerability. It affects Linux Kernel 3.14.5 and consequently, most of Android versions.
It breaks the mobile device's protect mechanism and potentially opens doors to malware which can grant high access to remote attackers.
Trend Micro Mobile Security Solution
Trend Micro Mobile Security Personal Edition protects Android smartphones and tablets from malicious and Trojanized applications. The App Scanner is free and detects malicious and Trojanized apps as they are downloaded, while SmartSurfing blocks malicious websites using your device's Android browser.