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Yes, you started with the statement that there was a known and common WhatsApp "virus", apparently as a general comment rather than that you had a problem. Now you are saying that you have some symptoms that you "know" are due to malware, but not how you know, nothing about WhatsApp, nothing about a "common" and "known" problem or what that common problem is or where you know about it from.
So if you are asking for help I suggest you just describe exactly what symptoms you have and what actions you have taken - just the facts. If you think it sounds like something you have heard of please provide a link so that can be evaluated properly.
Again, from your descriptions of the problem it was not likely to actually be a 'virus'. If you stop using that term to apply to any problem you encounter while using your phone, you'll find it much easier to fix some other problem in the future. At this point, you're putting the blame on Android, QCam, and WhatsApp but without any proof either was the actual source of what happened.
Well I've discovered that there is a security flaw in internet connected cameras sold under the QCam brand. Do you have one of those? None of the apps to control such a device I've found in the Play Store have an icon like you describe, but I doubt I've found them all because the Play Store search is frankly rubbish.ok VIP member,
I already fixed the problem with a factory reset, yes it is a virus (qcam) but I don't know whether it has to do with whatsapp where the bug/virus was sitting (battery satus and it appears in there) At this point I don't know if it is related to Android or whatsapp ?? Just trying to get to the bottom of this thing...
Well I've discovered that there is a security flaw in internet connected cameras sold under the QCam brand. Do you have one of those? None of the apps to control such a device I've found in the Play Store have an icon like you describe, but I doubt I've found them all because the Play Store search is frankly rubbish.
I don't think we'll be able to say much more at this point. You had a problem that you associated to something called qcam, but it's not clear what that is. And I'm still not clear why you think it might be connected to WhatsApp.
As general advice though, it isn't "viruses" you should be watching for on Android. A virus is a form of malware that is able to propagate itself between devices, and they are essentially non-existent on the Android platform. The real threat is "trojans", named after the Trojan horse of legend, which are innocent-looking apps that contain malware within them. That is overwhelmingly the way Android devices are infected, through tricking the owner into installing the malware themselves. So vigilance about what you install and where you install from is your best protection.