A method and device for protecting a storage unit

Abstract

The invention discloses a method and a device for protecting a memory cell. The method comprises the steps of obtaining the left memory space value of the memory cell when defecting a write-in request for writing first information, obtaining a first judgment result if determining that the left memory space value is higher than a threshold, obtaining a first source sending out the write-in request based on the write-in request if the first judgment result is no, determining whether the first source satisfies a first condition and obtaining a second judgment result, and rejecting the write-in request if the second judgment result is no. The method and the device for protecting the memory cell are used for solving the technical problems of slow system running and restart or crash due to the existing of the memory space of the internal memory cell easy to be full of malicious software in the prior art. As a result, the following technical effects can be achieved: memory space of the internal memory cell can be prevented from being instantaneously full of the malicious software, the normal running of the system is guaranteed, and the malicious software can be uninstalled successfully.

Description

technical field [0001] The invention relates to the field of computer technology, in particular to a method and device for protecting a storage unit. Background technique [0002] In recent years, with the continuous development of computer information technology, various electronic products emerge in an endless stream, and their applications have penetrated into all levels of society. According to the summary of the engineering professor of the Department of Computer Science, Cornell University, there are two obvious trends in the current computer field, namely the extensive use of smart mobile devices and the development of cloud computing. However, with these two trends, user terminals It also highlights the corresponding problem: the safety of mobile electronic products. [0003] Malicious software is the biggest threat to mobile devices. These malicious codes can be roughly divided into three categories according to their purposes: the first category is for profit, and...

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Problems solved by technology

[0008] The embodiment of the present application solves the problem that the protection scheme in the prior art cannot prevent malicious software from writing to the internal storage unit of the electronic device by providing a method and device for protecting the storage unit, so that the malicious software can fill up the internal storage of the electronic device. storage space of the unit, resulting in technical problems that cause the system to slow down, reboot or crash

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