Fake 'Free SmartPhone' Huawei Promo App Installs Malware to WhatsApp Users The expert from tech security firm ESET tweeted about the issue to warn his followers of the circulating "Android worm" with an attached video showing how the malware can land on your phone. The worm can get access to your device once you receive the malicious message and download what claims to be a promo Huawei app that gives you a chance of winning a free smartphone. The link will then lead you to a fake Google Play interface that looks exactly like Google Play. By simply clicking "install" on the app, you will land the malware on your device.