What is TCP/IP Hijacking?
By Jamie Pearson
TCP/IP is when the hacker takes control of the user’s computer when they are communicating in legitimate conversation between the server and the client on a network. They can do this by using the original authentication code and login details and they might do this by shoulder surfing or if the last user has forgotten to log off. Another way is that a hijacker can access a computer can be acting remotely.
When a hijacker accesses a computer system in this way then they can breach someone’s personal information like banking details and login accounts. Also they are able to put viruses on systems, denial to service and spamming using this method.
Sunday, 13 June 2010
Computer Viruses
So what are Computer Viruses?
By Jamie Pearson
A computer virus is a program made by a hacker that copies itself onto other computers and infects them continuously. Viruses use an executable code to deploy themselves. They can be infected over the internet via emails, cookies, fake software and hardware. Hardware is a effective way of the virus travelling like logging itself into USB pens and CD’s is quite a common method.
Resident Viruses – Resident viruses embed themselves into the computer’s memory when executed. They remove a key part of the computers processing and pose as the module that they have removed. When the computer goes to perform a task that the virus is replicating it causes the virus to trigger. These types of viruses are sometimes difficult for anti-virus software to detect they can remain hidden when a full system scan is carried out. Using a piggy-back technique they use the antivirus that’s detecting all the host files to transport it to all the other files on the system. The best way of removing these files is to call apron an expert that can go into the computers registry and remove them manually this strategy is usually called a fast infector. A slow infector copies itself on an irregular basis, it limits its actions and works very slowly so that it doesn’t get detected. These viruses usually get detected by antivirus because of their deployment nature.
Non-resident viruses - A type of computer virus that does not store or execute itself from the computer. Executable viruses are an example of non-resident viruses. They work by infecting other files each time the virus file is run. Most viruses work by this method because it needs the user to click on the file to open it. This can be done by making an internet link to a website, when a victim clicks on it, this triggers the virus to download, then perhaps a odd file appears on the desktop of the victim and they click on it and it runs the virus.
By Jamie Pearson
A computer virus is a program made by a hacker that copies itself onto other computers and infects them continuously. Viruses use an executable code to deploy themselves. They can be infected over the internet via emails, cookies, fake software and hardware. Hardware is a effective way of the virus travelling like logging itself into USB pens and CD’s is quite a common method.
Resident Viruses – Resident viruses embed themselves into the computer’s memory when executed. They remove a key part of the computers processing and pose as the module that they have removed. When the computer goes to perform a task that the virus is replicating it causes the virus to trigger. These types of viruses are sometimes difficult for anti-virus software to detect they can remain hidden when a full system scan is carried out. Using a piggy-back technique they use the antivirus that’s detecting all the host files to transport it to all the other files on the system. The best way of removing these files is to call apron an expert that can go into the computers registry and remove them manually this strategy is usually called a fast infector. A slow infector copies itself on an irregular basis, it limits its actions and works very slowly so that it doesn’t get detected. These viruses usually get detected by antivirus because of their deployment nature.
Non-resident viruses - A type of computer virus that does not store or execute itself from the computer. Executable viruses are an example of non-resident viruses. They work by infecting other files each time the virus file is run. Most viruses work by this method because it needs the user to click on the file to open it. This can be done by making an internet link to a website, when a victim clicks on it, this triggers the virus to download, then perhaps a odd file appears on the desktop of the victim and they click on it and it runs the virus.
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