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ANDROIDOS_DROIDSMS.A

August 11, 2010
 Analysis by: Christopher Daniel So
 THREAT SUBTYPE:

Premium Service Abuser

 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 has received attention from independent media sources and/or other security firms.

To get a one-glance comprehensive view of the behavior of this Trojan, refer to the Threat Diagram shown below.

It displays a Russian message.

It poses as a media player for Android phones

It sends out the SMS message '798657' to the premium numbers 3353 and 3354. By sending these messages, the user is charged according to the respective number's rate.

This Trojan may be manually installed by a user.

  TECHNICAL DETAILS

File Size:

5,724 bytes

File Type:

DEX

Memory Resident:

No

Initial Samples Received Date:

24 May 2011

Payload:

Sends out instant messages to premium numbers, Displays message/message boxes

Arrival Details

This Trojan may be manually installed by a user.

NOTES:

Other Details

Based on analysis of the codes, it has the following capabilities:

  • It displays a Russian message.
  • It poses as a media player for Android phones
  • It sends out the SMS message '798657' to the premium numbers 3353 and 3354. By sending these messages, the user is charged according to the respective number's rate.

  SOLUTION

Minimum Scan Engine:

8.900

FIRST VSAPI PATTERN FILE:

7.374.17

FIRST VSAPI PATTERN DATE:

10 Aug 2010

VSAPI OPR PATTERN File:

7.375.00

VSAPI OPR PATTERN Date:

10 Aug 2010

Step 1

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 Google Play.

Step 2

Remove unwanted apps on your Android mobile device

[ Learn More ]

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