Yxe trojan infecting mobile phones

Posted by   Virus Bulletin on   Jul 21, 2009

Symbian software-signing slipup certifies SMS spambot.

A new trojan, the first of its kind, is affecting users of the Symbian mobile operating system by spreading itself via text messages sent to all numbers in the phone's address book. These messages contain a link, clicking on which will attempt to install an application Sexy Space, which in fact is a copy of the trojan. Because it has been signed by Symbian, the user will not get a security warning before installing the application.

Apart from attempting to spread itself, the trojan, dubbed Yxe, Sexy Space or Sexy View, sends information about the phone to a control center. The trojan also downloads fresh message templates, which has caused it to be called a 'mobile botnet' by some researchers. It is not known whether the trojan has any further payload.

Symbian, which owns almost half of the smartphone OS-market, has admitted it made a mistake in not manually checking the malware. It has revoked the certificates, but the revokation is not immediately distributed to the hundreds of millions of Symbian users.

While the impact of the trojan is not very big and mainly concerns customers in China and the Middle East, it shows that users of smartphones, many of whom do not have anti-virus software installed, should not consider themselves safe from malware.

More on the trojan, including a guide on how to enforce phones to receive revokation certificates, at F-Secure's weblog here, while comments from Symbian can be found at CNET here.

Posted on 21 July 2009 by Virus Bulletin

twitter.png
fb.png
linkedin.png
hackernews.png
reddit.png

 

Latest posts:

VB2019 conference programme announced

VB is excited to reveal the details of an interesting and diverse programme for VB2019, the 29th Virus Bulletin International Conference, which takes place 2-4 October in London, UK.

VB2018 paper: Under the hood - the automotive challenge

Car hacking has become a hot subject in recent years, and at VB2018 in Montreal, Argus Cyber Security's Inbar Raz presented a paper that provides an introduction to the subject, looking at the complex problem, examples of car hacks, and the…

VB2018 paper and video: Android app deobfuscation using static-dynamic cooperation

Static analysis and dynamic analysis each have their shortcomings as methods for analysing potentially malicious files. Today, we publish a VB2018 paper by Check Point researchers Yoni Moses and Yaniv Mordekhay, in which they describe a method that…

VB2019 call for papers closes this weekend

The call for papers for VB2019 closes on 17 March, and while we've already received many great submissions, we still want more!

Registration open for VB2019 ─ book your ticket now!

Registration for VB2019, the 29th Virus Bulletin International Conference, is now open, with an early bird rate available until 1 July.

We have placed cookies on your device in order to improve the functionality of this site, as outlined in our cookies policy. However, you may delete and block all cookies from this site and your use of the site will be unaffected. By continuing to browse this site, you are agreeing to Virus Bulletin's use of data as outlined in our privacy policy.