This family of trojans drops files from the SymbOS/Skulls family. Members of the SDropper family have no additional interesting functionality apart from dropping and installing an embedded Skulls SIS file along with some additional non-malware software.
Please see the instructions below for F-Secure's F-Skulls tool. The tool will help in removing the Skulls files that were dropped by the member of the SDropper family.
Use F-Skulls to allow for installation of F-Secure Mobile Anti-Virus
Download F-Skulls tool from ftp://ftp.f-secure.com/anti-virus/tools/f-skulls.zip or directly to a clean phone from https://www.f-secure.com/tools/f-skulls.sis