Fortinet has announced the launch of a new version of the FortiCleanUp tool to help users recover from the ‘Curse of Silence' mobile attack.


Fortinet's FortiCleanUp is a range of free tools running on Symbian OS S60-powered phones and designed to remove and recover from specific mobile malware and their related variants. The FortiCleanUp tool for Curse of Silence/CurseSMS automatically scans and removes malicious SMS/MMS messages that are preventing the proper functioning of the handset.


For complete real-time protection, the FortiGuard team recommends the installation of Fortinet's FortiClient Mobile on mobile devices. This security application provides unified security agent features including personal firewall, IPSec VPN, antivirus, anti-spyware and SMS anti-spam.


As described by researcher Tobias Engel, the denial-of-service attack consists of sending one or more several specifically formatted SMS messages to the phone that is being targeted.


The messages then crash the phone's SMS system, but the phone remains functional otherwise. Depending on the operating system version of the targeted mobile phone, the device may require a factory reset to properly function again.