The countermeasures to a buffer overflow are as follows:
* Perform manual auditing of the code.
* Stack execution should be disabled.
* Take the support of the functions which are not the cause of the buffer overflow.
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* Take compiler support. For example, Java automatically checks if an array index is within the proper bounds. Use compilers such as Java instead of C to avoid buffer overflow attacks. Use tools such as StackGuard and Immunix System to avoid buffer overflows.
A stealth virus is a file virus. It infects the computer and then hides itself from detection by antivirus software. It uses various mechanisms to avoid detection by antivirus software.
This July 17th marks the eleventh anniversary of the famous internet crash. How did the internet crash; the network which was designed to withstand all sorts of catastrophe; even the
DNS hijacking is the process of altering the name server records and redirecting the users to a bogus website. As everyone knows every domain name depends on its name server