Monday, August 10, 2009
Security??Something that support our life and make our life easy to handle. So some organization provide program security for us because of attack such as brute force attack, replay attack, man in the midle attack and fault in cryptosystem. Program security is important part that teach us how the malicious proram will effect our computer and how to manage it.Malicious program is something that corrupt our computer from running as usually.
We can detect it is virus if we don't see raw data, it can do harm and can also be confidential. There are a few type of viruses such as parasitic virus, memory-resident virus, boot sector virus, stealth virus,macro virus, directory virus,false virus, FAT virus and polymorphic virus. Resident is new for me, it means type of virus that hides permanently in RAM memory and it can control and intercept all of the operations carried out by the system. It can corrupt our file and program we opened, closed, copied, renamed and so on. Virus phase can be divided into 4phase.1st, Dormant Phase.2nd,Propagation Phase.3rd, triggering phase and 4th is execution phase.There are a few type of malicious attack such as :
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