Unmasking Android Malware: A Deep Dive into a New Rootnik Variant, Part III

In this final blog in the Rootnik series we will finish our analysis of this new variant.

Let’s start by looking into the script shell rsh.

Analysis of the script shell

Through our investigation we are able to see how the script shell works:

First, it writes the content of the file .ir into /system/etc/install-recovery.sh. The file install-recovery.sh is a startup script. When the android device is booted, the script can be executed.

The following is the content of the file .ir.

Next, it writes some files…

from Unmasking Android Malware: A Deep Dive into a New Rootnik Variant, Part III

Advertisements

Leave a Reply

Fill in your details below or click an icon to log in:

WordPress.com Logo

You are commenting using your WordPress.com account. Log Out / Change )

Twitter picture

You are commenting using your Twitter account. Log Out / Change )

Facebook photo

You are commenting using your Facebook account. Log Out / Change )

Google+ photo

You are commenting using your Google+ account. Log Out / Change )

Connecting to %s