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Wednesday, July 31, 2013

Cyber Attack - Tutorial

Ping of Death Attack:

This is a very old Denial of service attack method, it will indicate send a ping request to a remote computer. The normal size to a ping request is 8 in size but this one will be 65.536 in size. when a so large ping packet is reaching the host computer doesn't know how to handle a so big packet. so the computer to the victim will even crash or hang. This attack can easily be executed from Command Prompt with typing ' ping -l 65.536 www.abc.com ' This attack will normally don't have any effect today since everyone have a working firewall. This attack is coming from an exploit in the TCP/IP suit.


TearDrop Attack:

This is Denial of service attack, this will indicate that you are making the victims computer to send a packet so will be transported by the TCP to the remote computer. whenever a packet will be sent over the internet, this will be broken down into the smaller datagram's, when that happened they will get the unique number so the TCP know how to rebuild them into normal size, when they have reached the host. What happened here it won't get the unique number so when they are coming to the remote computer it can't restore them to normal size. When this happened it will send any new request to the host computer to send new packets the same problem will occur again and it will use up all the resources on the host computer so it will even crash or hang. This is an exploit in the TCP/IP suit. It will also indicate that the attacker is using a spoofed IP address.