well mate...seems like some serious problem..!!
to be precise it aint a VIRUS.. rather yu kn tk it as a TROJAN,,,
if your mobile has the internet access the Trojan(Lets call it FISH) cn send the vital data like yur password including other data...
the person on the other end may change it..
Yur problem is quiet obvious... as js like any other mobile or pc.. der r 2divisions.. 1personal settings(Platform on which apps r loaded) n 2nd generalized data storage..
when yu store any data its been stored on 2part.. n ordinary FISH attacks d same....
I have a FISH which has targeted my BB platform... its changing my folders into EXE files... n m hvin a hardtime takin it out..
BITDEFENDER worked for me.. check it out if it works for yu..