Name :	Cabir.F
Category:	Malware
Type:	Virus
Platform:	Win32

Cabir.F is a minor variant of Cabir.B the only significant differences are that the Cabir.F displays different text on the start dialog when worm starts and that the Cabir.F spreads as Skulls.SIS instead of Cabir.SIS. Cabir.F displays text "Skulls" while Cabir.B displays text that contains just "Caribe". Please note that while Cabir.F displays text skulls when it starts, it is still Cabir variant. Not for Skulls variant though. For more details, see description of Cabir.A http://www.f-secure.com/v-descs/cabir.shtml

Disinfection

F-Secure Mobile Anti-Virus will detect the Cabir.F and delete the worm components. After deleting worm files you can delete this directory:

c:\system\skullsxsecuredata\skullssecuritymanager\

If your phone is infected with Cabir.F and you cannot install files over bluetooth, you can download it with F-Secure Mobile Anti-Virus directly to your phone

1. Open web browser on the phone

2. Go to http://mobile.f-secure.com

3. Select link "Download F-Secure Mobile Anti-Virus" and then select phone model

4. Download the file and select open after download

5. Install F-Secure Mobile Anti-Virus

6. Go to applications menu and start Anti-Virus

7. Activate Anti-Virus and scan all files

Cabir.F is a minor hexedit variant of Cabir.B, with the exception of a new filename and a different text displayed in the worm's execution. Cabir.F behaves identically to Cabir.B