What Is the Usual Treatment for Worm Infestation?

Worm is a common computer virus. It is an independent program that can be run without the intervention of computer users. It spreads by continuously obtaining some or all of the control on a vulnerable computer in the network. Computer virus refers to the destruction or destruction of computer functions or data that is programmed or inserted in a computer program. A set of computer instructions or program code that affects computer use and is capable of self-replication. ^[1]

A worm is a type of code that can replicate itself and spread through the network, usually without human intervention. After a worm invades and completely controls a computer, it will use this machine as a host to scan and infect other computers. When these new worm-invaded computers were brought under control,

(A), strong independence

According to the way worms spread on computers and networks, people generally divide them into five types. ^[4]

1.Feature-based detection technology

This is currently the most common technique for detecting worms, and is mainly derived from the idea of pattern matching. Before the scanning program works, the worm's feature file must be established, and the matching search is performed in the scan file according to the feature string stored in the feature file. If the data packet does not conform to the characteristic string, the data packet is not intervened; if the data packet conforms to the characteristic string, the data packet is truncated. The user updates the scanning software by updating the signature file, so that the purpose of scanning newly emerged worms can be achieved. However, the disadvantage of this method is that it can only find known worms, but cannot effectively defend against unknown worms. ^[6]

The virus is not terrible, and the attacks on individual users by network worms are mainly through social engineering, rather than using system vulnerabilities! So to prevent such viruses, you need to pay attention to the following points: ^[7]

1. Purchase suitable antivirus software. The development of network worms has left the traditional "file-level real-time monitoring system" of anti-virus software. Anti-virus software must develop into real-time memory monitoring and real-time email monitoring! In addition, in the face of the invincible web virus, users have become increasingly demanding of antivirus software! ^[7]

2. Always update the virus database. Antivirus software checks and kills viruses based on the virus s signature code, and viruses are emerging every day, especially in the network era. Worms spread fast and have many variants, so they must be updated at any time Virus database in order to be able to kill the latest viruses. ^[7]

3. Improve anti-virus awareness. Do not easily click on unfamiliar sites, it may contain malicious code! When running IE, click "Tools Internet Options Security Security Level of Internet Zone" and change the security level from "Medium" to "High". Because this type of web pages are mainly ActiveX or Applet, JavaScript web files that contain malicious code, banning ActiveX plug-ins and controls, Java scripts, etc. in IE settings can greatly reduce the chance of being infected by web page malicious code. The specific solution is: Click "Tools" "Internet Options" in the IE window, select the "Security" tab in the pop-up dialog box, and then click the "Custom Level" button, and the "Security Settings" dialog box will pop up. Select "Disable" for all ActiveX plugins and controls and all Java-related options. However, doing so may make some websites that normally use ActiveX unable to browse during the subsequent web browsing process. ^[7]

4. Don't look at strange messages at random, especially those with attachments. Because some virus emails can be executed automatically using vulnerabilities in ie and outlook, computer users need to upgrade ie and outlook programs, as well as other commonly used applications. The latest worm "masked guest" was found to leak user privacy. ^[7]