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Researchers measure smartphone malware infection rates and explore ways to identify infection with previously unknown malware

Date:
April 8, 2014
Source:
Helsingin yliopisto (University of Helsinki)
Summary:
Researchers measure smartphone malware infection rates and explore ways to identify infection with previously unknown malware. Smartphones are now ubiquitous, personal and have a lot of personal information about their users. Calls and messaging cost money to users, and smartphones are also used increasingly for more direct financial transactions. Therefore, one of the great fears about smartphone use is the possibility of large-scale viral infection.

Smartphones are now ubiquitous, personal and have a lot of personal information about their users. Calls and messaging cost money to users, and smartphones are also used increasingly for more direct financial transactions. Therefore, one of the great fears about smartphone use is the possibility of large-scale viral infection. Researchers show now that infection rates in Android devices at around 0.25 per cent are significantly higher than the previous independent estimate. They also developed a technique to identify devices infected with previously unknown malware.

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There is a steady stream of news stories and announcements about how many more new strains of Android malware appear in every passing year. Data showing infection rates in the real world has been hard to come by. There is a lot of data about the number of different malware samples discovered but not so much about the extent they are actually found in the wild. If smartphones are infected to the same extent as personal computers used to be, the resulting damage would be much more severe.

The few estimates that were out there vary greatly: ranging from more than 4 per cent of Android devices, according to an estimate by an anti-virus company, to less than 0.0009 per cent of smartphones in the US, according to a different estimate by group of academic researchers from the US.

What is the reason for this disparity?

University of Helsinki researchers working at the Intel Collaborative Research Institute for Secure Computing (ICRI-SC) will present a paper at this year's World Wide Web conference which provides an answer to this question based on their work in the "Malware Insights" project.

The project team, consisting of Hien Truong, Eemil Lagerspetz, Sourav Bhattacharya, and Petteri Nurmi working under the guidance of Professor N. Asokan and Professor Sasu Tarkoma have been investigating the true extent of malware infection in Android devices. Working withAdam J. Oliner from the UC Berkeley AMP Lab, they discovered that infection rates in Android devices at around 0.25 per cent are significantly higher than the previous independent estimate. The project collected anonymized data from over 50000 devices during a seven-month period.

An arXiv research report based on the work being done at the "Malware Insights" project at the department of Computer Science, has been featured ( http://www.technologyreview.com/view/522771/first-direct-measurement-of-infection-rates-for-smartphone-viruses/ ) in MIT Technology Review's "Emerging Technology From the arXiv" section.

The researchers also speculated that smartphones infected with malicious apps may have other, benign, apps in common, possibly because the users purchase them all from the same app market. Based on this conjecture, the researchers investigated if it is possible to develop a technique to identify devices infected with previously unknown malware. In their dataset, this approach is up to five times more likely to identify infected devices than by choosing devices at random.

The Malware Insights project is part of the research being done at the Intel Collaborative Research Institute for Secure Computing (ICRI-SC).


Story Source:

The above story is based on materials provided by Helsingin yliopisto (University of Helsinki). Note: Materials may be edited for content and length.


Cite This Page:

Helsingin yliopisto (University of Helsinki). "Researchers measure smartphone malware infection rates and explore ways to identify infection with previously unknown malware." ScienceDaily. ScienceDaily, 8 April 2014. <www.sciencedaily.com/releases/2014/04/140408111435.htm>.
Helsingin yliopisto (University of Helsinki). (2014, April 8). Researchers measure smartphone malware infection rates and explore ways to identify infection with previously unknown malware. ScienceDaily. Retrieved January 31, 2015 from www.sciencedaily.com/releases/2014/04/140408111435.htm
Helsingin yliopisto (University of Helsinki). "Researchers measure smartphone malware infection rates and explore ways to identify infection with previously unknown malware." ScienceDaily. www.sciencedaily.com/releases/2014/04/140408111435.htm (accessed January 31, 2015).

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