Android users are advised to examine their devices due to Google's decision to blacklist several applications infected with GhostAd malware, which drains battery life and mobile data. The malware has infiltrated at least 15 popular applications, including utility and emoji-editing tools, leading to significant resource drainage and disruption of normal device functionality. Many of these compromised apps were available on Google's Play Store, with one app, GenMoji Studio, reaching the number two spot in the 'Top Free Tools' category. Users have reported issues such as disappearing app icons, incessant pop-up ads, and decreased device performance. Google has removed the compromised apps from its Play Store, but users must still delete them from their devices. Millions of Android users have unknowingly become part of a hidden ad network due to this malware. Users are encouraged to review app feedback, verify app developers' credibility, and exercise caution with permissions to protect their devices from future threats.