full-disclosure - New Android Malware Botnet Reversed/Uncovered

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Date: Fri, 10 Feb 2012 12:56:17 -0600
From: "Adam Behnke" <adam@...osecinstitute.com>
To: <full-disclosure@...ts.grok.org.uk>
Subject: New Android Malware Botnet Reversed/Uncovered

Hello, one of InfoSec Institute's security researchers reverse engineered a
new botnet that is active for the Android platform. RootSmart has some
unique features that make it newsworthy:

. Takes advantage of Gingerbreak exploit to take control of Android device
. The main malware payload is a rootkit that hides itself inside of legit
app
. The rootkit hooks itself into the legit app as a boot service
. The rootkit installs its own shell into the OS, allowing it to silently
install other packages
. Encrypts the C&C URLs with a clever non-standard communication stream 

RootSmart is a successful botnet in the wild, between 10,000 and 30,000
devices are currently infected per Symantec. We were also able to uncover
the C&C server locations, they are currently active and residing in China.
More details are available here:

http://resources.infosecinstitute.com/rootsmart-android-malware/

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