Menu
Android malware steals one-time passcodes

Android malware steals one-time passcodes

The malware uses call forwarding to intercept voice calls with the passcode

One-time passcodes, a crucial defense for online banking applications, are being intercepted by a malware program for Android, according to new research from Symantec.

The malware, called Android.Bankosy, has been updated to intercept the codes, which are part of so-called two-factor authentication systems.

Many online banking applications require a login and password plus a time-sensitive code in order to gain access. The one-time passcode is sent over SMS but also can be delivered via an automated phone call.

Some banks have moved to call-based delivery of passcodes. In theory, that provides better security since SMS messages can be intercepted by some malware, wrote Dinesh Venkatesan of Symantec in a blog post on Tuesday.

But Bankosy has been updated to forward all calls to the attackers, Venkatesan wrote. In the Asia-Pacific region, many operators use a service code in the format *21*[destination number]# to forward calls, which Bankosy has implemented.

The malware also "has support for disabling and enabling silent mode in addition to locking the device so that the victim is not alerted during an incoming call," Venkatesan wrote.

The one-time passcode is used with the victim's login credentials, which the attackers have presumably already obtained.

Symantec detected Bankosy in July 2014. A technical writeup from that time shows the malware also prompted victims to enter their payment card information in a more bold attempt at fraud.

Follow Us

Join the New Zealand Reseller News newsletter!

Error: Please check your email address.

Tags operating systemsecurityAndroidpasscodesmalware

Slideshows

Meet the leading HP partners in New Zealand...

Meet the leading HP partners in New Zealand...

HP has recognised its top performing partners in New Zealand at the second annual 2016 HP Partner Awards, held at a glittering bash in Auckland. The HP Partner Awards recognises and celebrates excellence, growth, consistency and engagement of its top partners. This year also saw the addition of several new categories, resulting in 11 companies winning across 11 award categories.

Meet the leading HP partners in New Zealand...
Channel comes together as Ingram Micro Showcase hits Auckland

Channel comes together as Ingram Micro Showcase hits Auckland

Ingram Micro outlined its core focuses for 2017 at Showcase in Auckland, bringing together the channel for a day of engaging keynotes, compelling breakout sessions and new technologies.

Channel comes together as Ingram Micro Showcase hits Auckland
Show Comments