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ANDROIDOS_WALKINWAT.A

October 08, 2012
 Analysis by: Karl Dominguez
 THREAT SUBTYPE:

Information Stealer

 PLATFORM:

Android OS

 OVERALL RISK RATING:
 DAMAGE POTENTIAL:
 DISTRIBUTION POTENTIAL:
 REPORTED INFECTION:

  • Threat Type: Trojan

  • Destructiveness: No

  • Encrypted: No

  • In the wild: Yes

  OVERVIEW

This Trojan is an Android application that may be downloaded manually from third party Android markets. It is a modified version of the application Walk and Text.

It gathers specific information from the infected mobile device and sends these to a specific URL.

Once installed, it also displays specific images.

This Trojan may be manually installed by a user.

  TECHNICAL DETAILS

File Size:

13,188 bytes

File Type:

DEX

Memory Resident:

No

Initial Samples Received Date:

03 Apr 2011

Payload:

Steals information

Arrival Details

This Trojan may be manually installed by a user.

Other Details

This Trojan does the following:

  • This Android application is downloaded manually from third party Android markets. It is a modified version of the application Walk and Text.
  • Gathers the following information:
    • Name
    • Phone number
    • IMEI
    • Location based on google maps
    • Phone model
    • Brand
    • OS Version
  • Sends the above-mentioned information to the following URL: http://{BLOCKED}orateapps.com/wat.php
  • Displays the following message boxes once the application is opened:



  • Sends an SMS containing the following to every contact found in the address book:
    Hey,just downlaoded a pirated App off the Internet, Walk and Text for Android. Im stupid and cheap,it costed only 1 buck.Don\'t steal like I did!

  SOLUTION

Minimum Scan Engine:

8.900

TMMS Pattern File:

1.101.00

TMMS Pattern Date:

24 May 2011

NOTES:

Trend Micro Mobile Security Solution

Trend Micro Mobile Security Personal Edition protects Android smartphones and tablets from malicious and Trojanized applications. The App Scanner is free and detects malicious and Trojanized apps as they are downloaded, while SmartSurfing blocks malicious websites using your device's Android browser.

Download and install the Trend Micro Mobile Security App via the Android Market.

Remove unwanted apps on your Android mobile device

To remove unwanted apps on your mobile device:

  1. Go to Settings > Applications > Manage Applications.
  2. Locate the app to be removed.
  3. Scroll and highlight the app to be removed, then choose Uninstall.


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