You can try to use system process monitor available for your device, if there are some process running unknown and unrecognized, it may be spyware or hijacker running without notice. In Windows environment you can call taskmgr (Task Manager)
There are some free tools that we can use to detect such softwares, however to remove them sometime we need to buy the license.
5 WAYS TO DETECT CELL PHONE SPYWARE 1) Have you kept your phone with you at all times? 2) Unusually High Bill? 3) Battery Drain? 4) Shut Down Problems? 5) Check Your Icons! .. GPRS icon suddenly appearing with no reason
your phone continues to stay lit up for several seconds to a minute after you’ve shut it off.
3
your phone will light up when you’re not using it to make a call, or when no one is calling you, or when you’re not using any of the phone’s apps. Spyware has to “call” your phone to get information.
4
any strange background noises or clicks when you’re on a call.
5
an increase in GPRS activity. This indicates spyware is tracking your location.
6
the icon that shows the Internet connection activates several times a day for no reason. Again, spyware is gathering information.
7
many more text messages than you remember sending.
8
Ask your partner or someone else close to you whether they have borrowed your phone to install a software program they say you’ll like, or a wallpaper, or a ringtone.
Tips & Warnings
Use an anti-virus software on your phone to detect and remove viruses or spyware.
Take your phone to your service provider, which can erase the phone’s memory and restore the factory default settings. You’ll lose all your data, but the spyware will be history. Make a hard copy of any info you wish to retain.
Do not give your cell phone number to strangers or post it on the Internet. Spyware can be installed on your phone from a remote location simply by calling it.
If you let a stranger borrow your phone to make an “emergency” call before you noticed any of these signs, the number they called most likely installed spyware on your phone. This is commonly used to set up a program to send large numbers of text messages to your phone for which you are charged.
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