Signs and symptoms of mobile Malware.
Now, this would be if someone is complaining to you saying,
I think I have Malware on my device.
What should I do?
This isn't that you have a phone,
and you magically see this during your examination.
Poor battery life-- if the device is dying,
the first thing you should ask that person
is, how old is your smartphone?
These phones are not built to last a very long time.
We do have wear leveling where the data moves
around the device to help with the aging of the battery
and of the device itself.
But these devices, the battery will
start dying after about a year.
If you have someone that says I fully charge my device,
and my battery dropped from 100% to 20%, that's weird.
Look at the battery logs.
See what's killing it.
If the person has dropped calls, it literally could be that cell
versus Wi-Fi cannot decide which has a better signal.
That does not mean that someone's spying.
I have people all the time think that because calls
are dropped that someone has spyware on their phone.
Unusually large phone bills--
do your kids stream on your phone?
That's the first thing to think about.
Are you watching YouTube?
Are you playing video games?
Things like that could be killing it.
Good Malware will exfil data in the night.
And I want you to think about this.
Why do you think good Malware and spyware
will steal your information in the night?
Because we typically plug our phones in when we go to bed.
We are usually in our home or a hotel,
and it's connected to Wi-Fi.
So they know it's not going to kill your data plan.
There's some Malware that will check for Wi-Fi connections
before it actually fills.
That's really good Malware.
If your device is experiencing performance problems,
meaning you click on the Facebook
icon and some weird application flashes, that's not normal.
Unexpected device behaviors-- on my Android,
when I downloaded that WhatsApp Plus
that I talked about in section 2,
it downloaded a plain white icon.
And what drove me crazy is that plain white icon
would get a notification bubble of, it that would say 1 or 2.
When I clicked on it, it would just flash,
and nothing would happen.
I was pretty sure that device had Malware.
And I still have to go back and dig through it
and try to find it.