Music, lighting or vibration could trigger mobile malware
Washington: Researchers at the University of Alabama at Birmingham (UAB) have uncovered new hard-to-detect methods that criminals may use to trigger mobile device malware that could eventually lead to targeted attacks launched by a large number of infected mobile devices in the same geographical area.
Such attacks could be triggered by music, lighting or vibration.
The work was a joint collaboration between the UAB SECuRE and Trustworthy (SECRET) computing lab and the UAB Security and Privacy in Emerging computing and networking Systems (SPIES) research group.
"When you go to an arena or Starbucks, you don`t expect the music to have a hidden message, so this is a big paradigm shift because the public sees only emails and the Internet as vulnerable to malware attacks," said Ragib Hasan, Ph.D., assistant professor of computer and information sciences and director of the SECRET computing lab.
"We devote a lot of our efforts towards securing traditional communication channels. But when bad guys use such hidden and unexpected methods to communicate, it is difficult if not impossible to detect that," he added.
A team of UAB researchers was able to trigger malware hidden in mobile devices from 55 feet away in a crowded hallway using music. They were also successful, at various distances, using music videos; lighting from a television, computer monitor and overhead bulbs; vibrations from a subwoofer; and magnetic fields.
"We showed that these sensory channels can be used to send short messages that may eventually be used to trigger a mass-signal attack," said Nitesh Saxena, Ph.D., director of the SPIES research group and assistant professor in the Center for Information Assurance and Joint Forensics Research (CIA|JFR).
"While traditional networking communication used to send such triggers can be detected relatively easily, there does not seem to be a good way to detect such covert channels currently," Saxena added.
Researchers were able to trigger malware with a bandwidth of only five bits per second - a fraction of the bandwidth used by laptops or home computers.
The research was recently presented at the 8th Association for Computing Machinery (ACM) Symposium on Information, Computer and Communications Security (ASIACCS) in Hangzhou, China.
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