,xnc.edu,*,单击此处编辑母版文本样式,第二级,第三级,第四级,第五级,单击此处编辑母版标题样式,The Computer Virus,计算机病毒,xnc.edu,What is a computer virus?,What do viruses do to computers?,Whats the deal with Computer Viruses,How do viruses spread?,xnc.edu,计算机病毒定义,computer virus definition,All that can cause computer fault,destruction of computer data and program collectively referred to as a computer virus.,破坏计算机功能或者毁坏数据，影响计算机使用，并能自我复制的一组计算机指令或者程序代码。,中华人民共和国计算机信息系统安全疼惜条例其次十八条,xnc.edu,MYDOOM,电邮蠕虫病毒,xnc.edu,PHISHING,网络钓鱼,xnc.edu,灰鸽子,Gray pigeons,xnc.edu,What is a computer virus?,A computer virus is a program designed to spread itself by first infecting executable files or the system areas of hard and floppy disks and then making copies of itself.,计算机病毒是通过首次感染可执行文件或者系统硬盘和软盘系统区域，进展传播，并且能够自我复制的程序代码,xnc.edu,Common virus,xnc.edu,Virus classification,木马病毒,Trojan,蠕虫病毒,Worm,后门病毒,Backdoor,脚本病毒,Script,宏病毒,Macro,系统病毒,Win32,、,PE,捆绑机病毒,Binder,下载者病毒,downloader,好多种,xnc.edu,How do viruses spread?,over,execute program,xnc.edu,over a,network.,网页要求安装,外挂程序,xnc.edu,over,flash memory,电脑,插上受病毒感染的U,盘后,，主,机,本身也,会,跟著中毒,xnc.edu,The spread of the virus through the Internet speed,One day.,xnc.edu,What do viruses do to computers?,damage files,interfere with your computers operation,try to spread themselves around.,xnc.edu,Effect of computer virus,xnc.edu,Do not,melt down,your CPU,Do not burn out,your hard drive,Do not cause your monitor to explode,Note that viruses can”t do any damage to hardware:,xnc.edu,Some general tips on avoiding virus infection,To data important files backup,Install anti-virus software,scanning for viruses on a regular basis,xnc.edu,If you want to protect,your computer,Use Antivirus Software,！,xnc.edu,Some antivirus softwares,xnc.edu,Last,，,Let me introduce the,Hacker,Of couse,，,not the movie,xnc.edu,They are hackers,夜间活动频繁职业,xnc.edu,In the computer security context,a hacker is someone who seeks and exploits weaknesses in a computer system or computer network.Hackers may be motivated by a multitude of reasons,such as profit,protest,or challenge.,*黑客Hacker,While other uses of the word hacker exist that are not related to computer security,such as referring to someone with an advanced understanding of computers and computer networks,they are rarely used in mainstream context.,xnc.edu,I think,xnc.edu,This is all,thank you,If you don”t clap hands,tonight your computer is poisoning,鼓掌，否则今晚电脑中毒,xnc.edu,