Singlejump.H (renamed Onehop.H) is Symbian SIS file trojan that replaces system files and many 3rd party applications with corrupted binaries. It installs also components from SymbOS/Blankfont.A. These components replace system fonts with blank font after reboot. So, if your phone is infected with Singlejump.H, it is critical not to reboot the phone.Singlejump.H sends also SymbOS/Cabir.Dropper to the first device it finds with Bluetooth.
A False Positive is when a file is incorrectly detected as harmful, usually because its code or behavior resembles known harmful programs. A False Positive will usually be fixed in a subsequent database update without any action needed on your part. If you wish, you may also:
Check for the latest database updates
First check if your F-Secure security program is using the latest updates, then try scanning the file again.
Submit a sample
After checking, if you still believe the file is incorrectly detected, you can submit a sample of it for re-analysis.
Note: If the file was moved to quarantine, you need to collect the file from quarantine before you can submit it.
Exclude a file from further scanning
If you are certain that the file is safe and want to continue using it, you can exclude it from further scanning by the F-Secure security product.
Note: You need administrative rights to change the settings.
When installed Singlejump.H will replace most common third party file managers and application installer with non-functional versions. Some icons are also replaced.
Singlejump.H replaces built in and third party applications with component that changes system font. Some of the application icons are replaced with different icons. Singlejump.H uses modified Cabir to spread other trojan. Instead of sending a copy of itself it loads SIS file installed by Singlejump.H and sends it to the first phone it finds within Bluetooth range. In most cases these trojans doesn't send themselves further.