Digital world is all about data and the loss of this data stirs great concern amongst people. From inception, digital world has been grappling through the issues of data loss. Factors have been many and keep changing with the time. In recent years, though, viruses and malware became the biggest threat for the stored data in digital systems. Generally, viruses are the piece of written programs (evidently with ill intention) that attach itself to a legitimate file or program and runs when the legitimate program runs. It can circulate itself from one file to another file and destroy whole the data of a system. After deleting or altering all the files from a system, viruses self-propagate by sending its code to the other systems connected to the same network. In all, it becomes viral infecting the entire data and creating bizarre data scenario in your system. A hardware crash may not be ruled out as consequence. Viruses and anti-viruses both has become an industry like fight between good and evil. But with one exception, that in digital world not always the good wins. Viruses and malware are fast outrunning their anti by rendering them useless. These man-scripted viruses are more viral than the natural virus itself. They are everywhere. A single minute exposure to your USB devices to other systems imports a load of viruses that you purge before using the storage devices in your system. This all becomes freaky.
However, howsoever strong a virus may be, we have to gear up for all the precautions available to check virus within their harmless limits. A damage caused by viruses can be repaired through back-up process. The detection and removal of the viruses are the necessary to implement the back-up process. Antivirus are available in abundance in the market and on websites to detect and remove the viruses from the system. One can easily get some free versions of antivirus from different websites. Free versions are really helpful in ascertaining whether the anti-virus is really effective. If it can really detect and purge the malware, one can go ahead with the full-version or registered version. As we know that all they claim, they seldom do. Viruses are real monsters hard to be slain.
When Viruses attacks on your system, the system fails to response and according to our expectations, it starts reverting late submission and or delay response. This behavior of the system makes us frustrated. Viruses perform so many actions such as replication, deletion and alteration of the files stored in hard disk of the system.
Viruses are very dangerous for your important data. These viruses are different in nature. And according to its destroying nature, they are classified into six types:
Parasitic Virus - When a program is executed, parasitic viruses attached itself to the executable file and replicates.
Memory-Resident-Viruses - These viruses lodge in the main memory and infect all the files when executed.
Boot Sector Virus - Boot sector viruses infects the master boot record and spreads when system is booted from a disk containing virus or circulate them at boot time from master boot record.
Stealth Virus -. These types of viruses are very hazardous as it is explicitly designed to hide itself from antivirus.
Polymorphic Virus - A polymorphic virus mutates at each infection and makes detection very difficult.
Metamorphic Virus - Metamorphic viruses can change its identity, this makes it more dangerous. Moreover, it rewrites itself with each iteration and makes detection more difficult.
These hazardous viruses pass from four different phases through life time viz. dormant phase, propagation phase, triggering phase and execution phase. The virus will eventually be activated on some event such as date, time or capacity of disk space in dormant phase. After that virus place a copy of itself in different programs and itself enter in a propagation phase. In the triggering phase, the virus gets activated to perform function for which it was intended while in the execution phase, viruses performs their work of destruction of files.
Some of the viruses are the consequences of unsafe internet surfing as most computer programs carry plenty of viruses with them which can later ruin the whole program and the data loaded in the system. Destruction of data leads you towards a big trouble. To save your data from the virus one must use internet security antivirus for the system. You can easily keep your system away from viruses and can easily detect the worms harmful for you desktops and laptops. Live Virus free, live digitally happy.
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