ANDROIDOS_SPAMSOLDIER.A
Information Stealer, Premium Service Abuser, Click Fraud
Android OS
Threat Type: Backdoor
Destructiveness: No
Encrypted:
In the wild: Yes
OVERVIEW
This backdoor may be unknowingly downloaded by a user while visiting malicious websites.
It uses common file icons to trick a user into thinking that the files are legitimate.
TECHNICAL DETAILS
Arrival Details
This backdoor may be unknowingly downloaded by a user while visiting malicious websites.
Installation
This backdoor uses common file icons to trick a user into thinking that the files are legitimate.
It searches for the following folders where it can drop/create files:
- /sdcard/duplicate.apk
Autostart Technique
This backdoor adds and runs the following services:
- com.example.smsmessaging.TestService
Backdoor Routine
This backdoor connects to the following URL(s) to send and receive commands from a remote malicious user:
- http://{BLOCKED}ldierz.com/
NOTES:
This Android malware does the following:
- Blocks response message from premium phone numbers
- Grabs target premium phone number and message text from the URL http://{BLOCKED}0ldierz.com/command.php?action=recv
- Sends SMS to target premium phone number
SOLUTION
Step 1
Remove unwanted apps on your Android mobile device
Step 2
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.
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