Hacking Exposed Mobile Security Secrets & Solutions by Neil Bergman & MIKE STANFIELD & JASON ROUSE & JOEL SCAMBRAY

Hacking Exposed Mobile Security Secrets & Solutions by Neil Bergman & MIKE STANFIELD & JASON ROUSE & JOEL SCAMBRAY

Author:Neil Bergman & MIKE STANFIELD & JASON ROUSE & JOEL SCAMBRAY
Language: eng
Format: epub
Publisher: McGraw-Hill Education
Published: 2013-04-06T04:00:00+00:00


Figure 5-4 SMSZombie becoming a device administrator

Now that the malware is installed, it sends an SMS message back to a hard-coded phone number stating whether the device is rooted or not. SMSZombie does not have the capability to root the device, but checks to see if the device is already rooted by attempting to execute the su binary. An XML file called phone.xml is then created. This file contains the phone number SMSZombie will send messages to as well as a list of keywords.

SMSZombie sends all SMS messages currently on the device to the target phone number listed in phone.xml. When a new message is received, it first checks the list of keywords in phone.xml. If one of the keywords is found, the message is forwarded to the target phone number and deleted from the device. Otherwise, the message is forwarded but not deleted. This allows the malware to keep messages related to financial transactions hidden from the user, so fraudulent transactions are not immediately noticed.



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