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Smartphones - Anti-virus software not needed?

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#1 GoshenBleeping


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Posted 11 December 2013 - 07:28 PM

Recently some interesting articles were published on the use of anti-virus software for smartphones. The links are listed below:
(1) Paper by Georgia Institute of Tech. & Damballa - "Analyzing Malicious Traffic in Cellular Carriers"
(2) Antone Gonsalves - "Let's dump anti-virus software and move on"
(3) Economist magazine, 12.03.13 - "Thief in your pocket?"
The crux of the above is that the rate of malware infection in mobile devices is so slight that the use of AV software is not warranted. Reference #1 concluded from their study that the rate of infection is approximately 0.0009% of mobile devices. Reference #3 concludes that as long as mobile device users acquire apps from Google and Apple app stores, and practice safe surfing habits, these users should not worry about mobile device malware.
I am interested if anyone has counter arguments. Do you agree that AV software is not needed? Is there something missing from these arguments? Comments?

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#2 quietman7


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Posted 12 December 2013 - 10:11 AM

I don't use smart phones but here is some more reading material.

* Do smartphones really need antivirus software?
* Does your smartphone really need antivirus software?
* How effective is antivirus software on smartphones?
* Does Mobile Antivirus Software Really Protect Smartphones?
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#3 Didier Stevens

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Posted 12 December 2013 - 05:28 PM

I think there is an observation bias here (paper #1): only smartphones that showed obvious signs of infection were counted (that's what I get from the abstract, didn't read the paper).


In the PC world, a lot of malware is stealth. If nobody sees it, nobody reports it, it is not counted.


Second: several smartphone OS's offer no API's at all for AV applications to be able to perform.


For example, in iOS, an AV app is like any other app, it has no special privileges or access so that it can monitor the phone resources for malware.

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#4 myrti



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Posted 13 December 2013 - 07:40 PM



the security settings in Android (I don't know for iOS) are very layered and split up, therefore you can control what an app can or can not do on your phone before installing it.

If you're installing a screensaver, for example, and it demands the permissions to be able to make phone calls, you might decide to go look for another screen saver.  This is something that is inherently different on Windows and also in general on PCs. While you can separate between Admin and not-admin on PC, you don't separate the access to different features of the OS, so it's easier to find a process to exploit because all of them will give you the power you want on the PC.

In addition you retrieve your programs from one authorative location, normally, that makes it a lot harder to introduce malware because people will not just run that installer they got from a random website and in some cases the OS won't even allow it.  So the phone OS are more secure by default.




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