My iphone 5s keeps changing time on its own and keeps disconnecting from the wifi and cellular data. All other devices are connected and working. Is it a virus?

Question

What can i do to fix it? My husband suggests I reset my phone but I'm afraid my data will be wiped off an that would be of total waste if the problem doesn't even get solved. Your help would be much appreciated!

Answer 1

There is no known malware capable of infecting an iPhone that has not been jailbroken (ie, hacked to allow apps from outside the App Store). If you have jailbroken it, you have exposed yourself to malware, and should restore the phone to factory defaults, without restoring a backup. All data will be lost, but that is unavoidable.
Most likely, you haven't jailbroken it, in which case you don't have to worry about malware. In that case, it's hard to say what's going on, but there are some things you can try.
First, try resetting your device. Press and hold both the home button and the sleep/wake button for about 10 seconds, until the screen turns off. Ignore the slider that will appear. Release the buttons, then press and hold the sleep/wake button until the Apple logo appears. This is the equivalent of a reboot, and should not affect your data or apps.
If that doesn't help, try restoring your device from backups, and if that doesn't help, restore it to factory settings (ie, do not restore a backup). See:
http://support.apple.com/kb/ht1414
If none of that helps, the issue is caused by some kind of hardware problem, and the device will need to be repaired or (more likely) replaced.