病毒预防与查杀

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病毒预防与查杀

发布日期：2017/04/07 08:00:00

　　病毒：编制者在计算机程序中插入的破坏计算机功能或者破坏数据，影响计算机使用并且能够自我复制的一组计算机指令或者程序代码被称为计算机病毒(Computer Virus)。具有非授权可执行性、隐蔽性、破坏性、传染性、可触发性。

　　中毒征兆：

　　1. 在特定情况下屏幕上出现某些异常字符或特定画面;

　　2. 文件长度异常增减或莫名产生新文件;

　　3. 一些文件打开异常或突然丢失;

　　4. 系统无故进行大量磁盘读写或未经用户允许进行格式化操作;

　　5. 系统出现异常的重启现象，经常死机，或者蓝屏无法进入系统;

　　6. 可用的内存或硬盘空间变小;

　　7. 打印机等外部设备出现工作异常;

　　8. 在汉字库正常的情况下，无法调用和打印汉字或汉字库无故损坏;