From the BlackBerry Technical Knowledge Center.
What Is - J2ME/RedBrowser.a Trojan horse
Last Updated: 28 February 2006 Article Number: KB-04916 Summary
This article applies to the following:
- BlackBerry® Browser
- BlackBerry Device Software
- BlackBerry wireless device
There is a Trojan horse program called J2ME/RedBrowser.a which affects the BlackBerry Browser. J2ME/RedBrowser.a is a trojan horse program that pretends to access Wireless Application Protocol (WAP) web pages via short message service (SMS) messages. In reality, instead of retrieving WAP pages, it sends SMS messages to premium rate numbers; thus increasing the user’s phone bill. Recommendations
- Never download or run a program unless you know and trust its source.
- Validate all requests from programs that require access to SMS. If a program unexpectedly requests access to SMS, do not allow it.
- With BlackBerry Enterprise Server 4.0 or later, the administrator can use application control policies to limit what programs can do when they are downloaded by a user. In this case, the administrator can blacklist the J2ME/RedBrowser.a program so that users cannot download it onto their BlackBerry devices. Another option if for the administrator to prevent programs from accessing information or APIs by setting default permissions for all the programs a user can download.
- The administrator can also create an IT Policy to prevent a device from sending SMS messages.