SymbOS/RommWar.D is a malicious SIS trojan that installs a malfunctioning system component that can cause different behaviours depending on the ROM software version in the device. Different effects witnessed range from the freezing of the device requiring a restart, to disabling the power button on the device, or in some cases no apparent effect on device at all.


Manual Disinfection

Based on the effect caused by SymbOS/RommWar.D, removal of the malfunctioning components might be possible by going to the application manager and uninstalling the SIS file in which SymbOS/RommWar.D arrived.

Disinfection for the cases when phone cannot start up

CAUTION! this method will remove all data on the device including the 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
Find out more

Knowledge Base

Find the latest advice in our Community Knowledge Base.

User Guide

See the user guide for your product on the Help Center.

Contact Support

Chat with or call an expert for help.

Submit a sample

Submit a file or URL for further analysis.

Technical Details

Installation to System

SymbOS/RommWar.D installs a malfunctioning system binary into the C: drive of the phone and a bootstrap component that executes the malfunctioning system binary. This is followed by different effects depending on the version of the ROM software on the device. Effects witnessed vary from the freezing of the device, to disabling of the power button, or sometimes no apparent effect at all.

SymbOS/RommWar.D also installs a trial version of Kaspersky Anti-Virus Mobile for S60 on the phone.


Installs a corrupted system binary and a bootstrap component.

Date Created: -

Date Last Modified: -