The virus specifically designed for the widely used office software is a "macro virus"; a macro virus is a computer virus that is stored in the macros of a document or template; once such a document is opened, the macros in it will be executed, so the macro virus will be activated, transferred to the computer, and reside on the Normal template. All automatically saved documents will be "infected" with this macro virus; and if other users open the virus-infected file Documents, macro viruses will be transferred to his computer.
The operating environment of this tutorial: Windows 7 system, Dell G3 computer.
What is a virus designed specifically for widely used office software?
The virus specially designed for the widely used office software ismacro virus.
If a document contains a macro virus, we say the document is infected with a macro virus; if the template in the WORD system contains a macro virus, we say the WORD system is infected with a macro virus.
Macro virus is a computer virus that is stored in the macro of a document or template. Once such a document is opened, the macros in it will be executed, and the macro virus will be activated, transferred to the computer, and reside on the Normal template. From now on, all automatically saved documents will be "infected" with the macro virus, and if another user opens the infected document, the macro virus will be transferred to his computer.
The harm is mainly in the following aspects:
1. The main damage of macro virus
The damage of WORD macro virus is in two aspects:
1. Damage to the operation of WORD is: unable to print normally; closing or changing file storage paths; renaming files; copying files randomly; closing related menus;
files cannot be edited normally. For example, the Taiwan No.l Macro virus breaks out on the 13th of every month, and all writing work cannot be carried out.
2. The damage to the system is: Word Basic language can call system commands and cause damage.
2. Macro viruses are highly concealed, spread rapidly, cause serious harm, and are difficult to prevent and control.
Compared with viruses that infect ordinary .EXE or .COM files, Word macro viruses are highly concealed. It spreads rapidly, causes serious harm, and is difficult to prevent and control.
1. Macro viruses are highly concealed because people ignore that there is also an opportunity to spread viruses when transferring a document.
2. Macro viruses spread quickly
Because the exchange of office data is more regular and frequent than copying .EXE files. If curbing piracy can reduce the spread of ordinary .EXE or .COM viruses, then this trick will be effective against Word viruses. Helpless.
3． The harm is serious
Because Microsoft Word has almost become the de facto industry standard for office documents around the world, and its impact is global, and China is no exception. The exchange of Word files is one of the most common ways of exchanging and transmitting office data. Its scope is much larger than the spread of pirated software, and its spread speed is even worse. According to reports, 70%-80% of Chinese computer users no longer simply use MSDOS as their only operating environment. Watching VCDs and using Word have become the top Windows applications for users. Countless DOC files are spread like a pyramid from higher-level agencies to the grassroots, and the grassroots are reported to higher-level agencies, from the offices of various units to the homes of workers, to the computer systems of the publishing department. Therefore, there is a possibility that when thousands of x86 computer systems are spreading and replicating these data and document files, they are also faithfully spreading and replicating these viruses.
Because the virus can cross multiple platforms and destroy data files, it is extremely harmful. The virus spreads rapidly when companies transfer files to each other through the intranet, and often quickly All the company's machines can be infected with viruses.
4． Difficult to Prevent and Control
Because the macro virus uses the document mechanism of Word to spread, it is different from previous virus prevention and control methods. Under normal circumstances, people pay most attention to virus infections in executable files (.COM, .EXE), and Word macro viruses are parasitic in Word documents, and people generally back up document files, so the virus can hide for a long time. a period of time.
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