SummaryUpdated: July 11, 2012 10:48:22 PMType: TrojanInfection Length: VariesSystems Affected: Android
Android.Malhome is a Trojan horse for Android devices that steals information from the compromised device.
Android package file
The Trojan may arrive as a package with one of the following names:
APK: org.adw.launcher2, com.android.couples, com.android.couples
Once installed, the application will not display an icon.
Antivirus Protection Dates
- Initial Rapid Release version July 11, 2012 revision 002
- Latest Rapid Release version July 11, 2012 revision 002
- Initial Daily Certified version July 11, 2012 revision 003
- Latest Daily Certified version July 11, 2012 revision 003
- Initial Weekly Certified release date July 11, 2012
Technical DetailsUpdated: July 11, 2012 10:48:22 PMType: TrojanInfection Length: VariesSystems Affected: Android
Android package file
The Trojan may arrive as a package with one of the following names: APK:
org.adw.launcher2, com.android.couples, com.android.couples Version:
When the Trojan is being installed, it requests permissions to perform the following actions:
- Initiate phone calls without user consent
- Expand or collapse the status bar
- Retrieve information about current or recently run tasks
- Read user's contacts data
- Set the wallpaper
- Set the wallpaper hints
- Make the phone vibrate
- Read or write to the system settings
- Write to external storage
- Tell AppWidget service which application can access AppWidget's data
- Allow global search system to access content provider data
- Read phone state
- Access network information
- Set Access Point Name (APN) settings
- Monitor incoming SMS messages
- Monitor incoming MMS messages
- Monitor incoming WAP push messages
- Open network connections
- Read SMS messages
- Create new SMS messages
- Send SMS messages
- Prevent processor from sleeping or screen from dimming
- Allow access to low-level power management
- Change network connectivity state
- Start once the device has finished booting
- Kill background processes
- Access information about Wi-Fi networks
- Change Wi-Fi connectivity state
- Allows launcher to read or write the system settings
Once installed, the application will not display an icon. Functionality
When the Trojan is executed, it changes the current theme.
When the user selects Home
, it prompts the user to choose a launcher.
The Trojan may then collect the following data from the compromised device:
The Trojan attempts to post collected data to the following location:
The Trojan also sends an SMS message containing the collected data to a phone number.
The Trojan may also kill antivirus software processes.
Symantec Security Response encourages all users and administrators to adhere to the following basic security "best practices":
- Use a firewall to block all incoming connections from the Internet to services that should not be publicly available. By default, you should deny all incoming connections and only allow services you explicitly want to offer to the outside world.
- Enforce a password policy. Complex passwords make it difficult to crack password files on compromised computers. This helps to prevent or limit damage when a computer is compromised.
- Ensure that programs and users of the computer use the lowest level of privileges necessary to complete a task. When prompted for a root or UAC password, ensure that the program asking for administration-level access is a legitimate application.
- Disable AutoPlay to prevent the automatic launching of executable files on network and removable drives, and disconnect the drives when not required. If write access is not required, enable read-only mode if the option is available.
- Turn off file sharing if not needed. If file sharing is required, use ACLs and password protection to limit access. Disable anonymous access to shared folders. Grant access only to user accounts with strong passwords to folders that must be shared.
- Turn off and remove unnecessary services. By default, many operating systems install auxiliary services that are not critical. These services are avenues of attack. If they are removed, threats have less avenues of attack.
- If a threat exploits one or more network services, disable, or block access to, those services until a patch is applied.
- Always keep your patch levels up-to-date, especially on computers that host public services and are accessible through the firewall, such as HTTP, FTP, mail, and DNS services.
- Configure your email server to block or remove email that contains file attachments that are commonly used to spread threats, such as .vbs, .bat, .exe, .pif and .scr files.
- Isolate compromised computers quickly to prevent threats from spreading further. Perform a forensic analysis and restore the computers using trusted media.
- Train employees not to open attachments unless they are expecting them. Also, do not execute software that is downloaded from the Internet unless it has been scanned for viruses. Simply visiting a compromised Web site can cause infection if certain browser vulnerabilities are not patched.
- If Bluetooth is not required for mobile devices, it should be turned off. If you require its use, ensure that the device's visibility is set to "Hidden" so that it cannot be scanned by other Bluetooth devices. If device pairing must be used, ensure that all devices are set to "Unauthorized", requiring authorization for each connection request. Do not accept applications that are unsigned or sent from unknown sources.
- For further information on the terms used in this document, please refer to the Security Response glossary.
Writeup By: Tommy Dong
RemovalUpdated: July 11, 2012 10:48:22 PMType: TrojanInfection Length: VariesSystems Affected: Android
You may have arrived at this page either because you have been alerted by your Symantec product about this risk, or you are concerned that your device has been affected by this risk. Install Norton Mobile Security
If you do not already have Norton Mobile Security
installed on your device, please download the product from the Android marketplace
Alternatively, you can navigate to the norton.mobi
website from your device and download the product from there by completing the following steps:
- Select the 90-Day free download.
- Click on the Android icon to begin downloading the product.
- Click on Install in order to accept the permissions that are being requested by the program.
- Next, click Open and then Agree & Launch.
The first time the product runs, you will be required to enter a code that is displayed on the screen in order to activate the product. Enter the provided code and press Submit
. Run a full system scan
Run a full system scan using Norton Mobile Security to remove this risk from the device. To do this, please perform the following actions:
- Navigate to the Anti-Malware tab.
- Click Scan Now.
To remove this risk manually, please perform the following actions:
- Open the Google Android Menu.
- Go to the Settings icon and select Applications.
- Next, click Manage.
- Select the application and click the Uninstall button.
Writeup By: Tommy Dong