Although rare and only a more recent occurrence, SMS messages sent to mobile devices may also attempt to convince users to install a mobile malicious code. On or before February 4, 2009, Chinese mobile phone users began reporting a new virus that affects Symbian S60.25 A signature is required on all code that runs on the S60 third edition, and this virus is no exception; it uses a certificate from Symbian licensed to “ShenZhenChenGuangWuXian.” After the user installs the program, it spreads to other users by sending SMS messages that contain URLs, such as
the following, for users to download and install the code:

• hxxp://www.wwqx-mot.com/game
• hxxp://www.wwqx-cyw.com/game
• hxxp://www.wwqx-sun.com/game

The “Sexy View” virus attempts to convince recipients to download
and install a Symbian Installation file (SISX) at the URL, but it does not use any exploits to install automatically. Details on this virus are publicly available.