Latest Τhreats

A new Commwarrior variant detected

 

F-Secure's viruslab has received a new Commwarrior sample, Commwarrior.Q.

Commwarrior.Q is not just a hexedit of Commwarrior.B, like most Commwarrior samples the Lab has received. Commwarrior.Q is a fully new variant with new functionalities. It is based on Commwarrior.C and has all the same functionalities as Commwarrior.C and more.

Like Commwarrior.C, the Q variant spreads via Bluetooth and MMS messages and infects any memory card inserted into the infected device. Additionally, Commwarrior.Q searches for any SIS file installation packages and injects itself into them. This means that besides trying to spread by itself, Commwarrior.Q also tries to get users to distribute it.

Commwarrior.Q is also the first Symbian malware that uses a random SIS installation file size when it replicates. The file size of the Commwarrior.Q SIS file varies between 32100 bytes and 32200 bytes. This makes it difficult to exclude from the MMS traffic.

When Commwarrior.Q is installed, it will display an HTML page to the phone's default browser after a random delay.

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