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A type of computer virus that associates itself with the execution of programs by modifying directory table entries to ensure the virus itself will start when any program on the computer system is started. If infected with a cluster virus it will appear as if every program on the computer system is infected; however, a cluster virus is only in one place on the system.

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What is directory virus?

As the name indicates, a directory virus functions by infecting the directory of your computer. A directory is simply a larger file that contains information about other files and sub-directories within it. The general information consists of the file or directory name, the starting cluster, attributes, date and time and so forth. When a file is accessed, it scans the directory entry in search of the corresponding directory. There it is able to locate the starting cluster which is an index to the FAT (File Allocation Table). The FAT contains the addresses for all subsequent clusters until the last cluster is indicated by a marker like this: 0xFFF (16-bit FAT). A directory virus inserts a malicious code into a cluster and marks it as allocated in the FAT. This prevents it from being allocated in the future. The virus then saves the first cluster and forces it to target other clusters, indicating each file it wants to infect. The malicious code typically contains an extension such as COM. (command) or EXE. (execute) which executes the virus.


Is cluster a collective noun?

Yes, the noun 'cluster' is a standardized collective noun for:a cluster of antelopesa cluster of beesa cluster of bombsa cluster of computersa cluster of diamondsa cluster of grapesa cluster of grasshoppersa cluster of knotsa cluster of porcupine fisha cluster of spidersa cluster of starsa cluster of things


What word does cluster go with in collective noun?

The noun 'cluster' is a collective noun for:a cluster of antelopesa cluster of beesa cluster of churlsa cluster of computersa cluster of grapesa cluster of grasshoppersa cluster of knotsa cluster of porcupine fisha cluster of spidersa cluster of starsa cluster of things


What are the 3 cluster of personal entrepreneurial competencies?

achievement cluster, planning cluster, power cluster


What is the collective noun of cluster?

The noun 'cluster' is a standardized collective noun for:a cluster of antelopesa cluster of beesa cluster of bombsa cluster of computersa cluster of diamondsa cluster of grapesa cluster of grasshoppersa cluster of knotsa cluster of porcupine fisha cluster of spidersa cluster of starsa cluster of things


What is a small cluster of blisters that appears on the arm and leg?

The small cluster of blisters that appears on the arm and leg is most likely a symptom of herpes zoster, also known as shingles. Shingles is caused by the reactivation of the varicella-zoster virus, the same virus that causes chickenpox. The blisters are typically filled with fluid and can be painful or itchy. It is important to seek medical attention for proper diagnosis and treatment.


what are achievement competencies?

achievement cluster, planning cluster, power cluster


What are the cluster of personal entrepreneurial competencies?

there are 3 clusters of PECs these are the Achievement Cluster, Planning Cluster and the Power Cluster


Which is larger a star or a star cluster?

A star cluster is a cluster of stars, so clearly a star cluster must be larger.


What is noun cluster?

The noun 'cluster' is a singular, common, concrete noun; a word for a small, close group of people or things. The noun 'cluster' is also a collective noun for such things as a cluster of grasshoppers, a cluster of grapes, a cluster of diamonds, a cluster of stars. The word 'cluster' is also a verb; to form a small group.


What is a meme cluster?

it is a cluster of memes


What is a nebular cluster?

a cluster of stars.