With the popularity of mobile smart devices, the eyes of hackers and virus makers have also begun to shift. Recently, domestic network security companies discovered a mobile phone malware disguised as commonly used software such as game plug-ins, QQ likes, and paid cracking. This malware behaves very roguely, and it can be implemented in two ways, one is to make a special full-screen floating window by controlling the mobile phone's floating window properties and force it to the top, affecting the user's normal operation. The other is to set the unlock password of the system directly by activating the device manager, and the user of the mobile phone cannot know the password set by the software author, so that the successful user cannot operate the mobile phone. The ultimate goal of malware is to make users pay, and if they do not pay to unlock it as shown on the malicious program's interface, the phone will not be able to perform any operations, even if it is restarted. Statistics show that this type of malware has been attacked by thousands of people since mid-April this year, and it is expected to expand further.
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