Summary
SymbOS/RommWar.B is a malicious SIS trojan that installs a malfunctioning system component that causes the device to reboot and prevents the device from starting up after the reboot.
Removal
Disinfection for cases when phone cannot start up
Caution: This method will remove all data on the device, including calendar and phone numbers.
- Power off the phone
- Hold the following three buttons down - "answer call" + "*" + "3"
- Keep holding down the buttons and power on the phone
- Depending on the model, you will either get text that reads "formatting" or a start-up dialog that asks for the initial phone settings
- Your phone is now formatted and can be used again
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.
Technical Details
Installation to System
SymbOS/RommWar.B installs a malfunctioning system binary into the C: drive of the phone as a bootstrap component. This is followed by different effects depending on the version of the ROM software on the device. Effects witnessed include a reboot of the device and failing to start up after the reboot.
Payload
Installs a corrupted system binary as a bootstrap component.
More Support
Community
Ask questions in our Community.
User guides
Check the user guide for instructions.
Contact Support
Chat with with or call an agent.
Submit a Sample
Submit a file or URL for analysis.