Security Market Segment LS
Thursday, 03 August 2017 09:30

Android malware poses as Flash update, steals banking details


Keylogging malware known as Invisible Man masquerades as an update for Adobe's Flash and can steal banking details from Android mobile devices, security company Sophos reports.

The company did not specify how the malware gained access to a mobile device. Once it did, a check was done to determine the language of the device and if it was Russian, then the malware did nothing further.

In all other cases, a pop-up appears asking for permission to use accessibility services, which, while a legitimate set of tools for users with disabilities, can also be used for nefarious purposes.

Sophos said Invisible Man used the accessibility services to draw things on the screen of the mobile device and then installed itself as the default app for SMS.

"That ability to draw something on screen above other apps is used to create invisible overlays that sit above legitimate banking apps," the company said. 

invisible man"The overlay intercepts keystrokes the victim thinks they’re typing into the app underneath such as usernames and passwords."

If the user tried to open Google Play Store, a pop-up would appear asking for credit card details.

The company said the appearance of notifications for Flash updates was one red flag to watch out for, but admitted that since Flash was full of holes, one could not forgo updates.

However, requests to use accessibility services should be considered a warning sign, it said.

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Sam Varghese

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Sam Varghese has been writing for iTWire since 2006, a year after the site came into existence. For nearly a decade thereafter, he wrote mostly about free and open source software, based on his own use of this genre of software. Since May 2016, he has been writing across many areas of technology. He has been a journalist for nearly 40 years in India (Indian Express and Deccan Herald), the UAE (Khaleej Times) and Australia (Daily Commercial News (now defunct) and The Age). His personal blog is titled Irregular Expression.

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