A new version of the Cabir "Skulls" malware program is on the lose. The first version, discovered only a few weeks ago, was a trojan horse program that blocked access to built-in applications and erased data. The new version is a worm in that it can spread itself automatically to nearby Series 60 devices via Bluetooth.
Skulls.B or Cabir.B, as it is called, still requires the user to run an executable to deliver its payload but replaces built-in application icons with the default "jigsaw" icon instead of a skull. It will still destroy data and refuse access to ROM-based applications.
Security firm F-Secure has information on how to remove Skulls.B from an infected device. It also recommends setting phones to non-discoverable mode to avoid infection. All Series 60 phones appear to be affected with the inexplicable exception of the Siemens SX1.
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