South Korea investigation day (Tuesday) last month accused rival north Korea attacks dozens of south Korean media and government websites, including the President and prime minister.
South Korea ministry said a north Korean Internet protocol address found on some websites and malicious code linked 25 years the biggest piece of evidence of Pyongyang in June, it marked the beginning of the Korean war of the 63th anniversary of the attacks,.
Investigators said that north Korea was responsible for the Internet address, access logs, and 82 of malicious code found in attacked server, computers and the web site, found after analysis.
Last month's attack was the latest of several South Korea accused north Korea since 2009, including the Korean broadcasting companies and Banks in the march attack.
Pyongyang rejected the previous charges, cyber attack and accused the United States and South Korea, is also in March, its website shut down for two days. North Korea's state media on Tuesday accused have immediately available for comment.
The south Korean government a team of researchers led by investigators said, June online attacks, hit 69 governments and the private company's web site and the server, for at least 6 months of the plan. Part of the plan include the hacker file sharing website in Korea.
One of the researchers, declined to disclose how the attacker hacked to death in the President's website, because hackers may imitate other attacks. But he said the attacker used a variety of ways to attack, one of which is to make the computer automatically sent a lot of traffic, targeted website, when a user from a file sharing site to download a malicious code. This type of attack to shut down a website bring enormous flow is called a distributed denial of service attack or a distributed denial of service attacks. In June's attack, the attack against the server. Some government
In fact, the attacker to network attacks, the next few months time to question whether the authorities failed to detect early warning signs. Officials have detected a problem, if someone finds the file sharing of hackers, but no one is doing, even close on March 20, authorities are investigating the Korean broadcasting companies and Banks of hundreds of thousands of computer network attacks.
Jun Kilsoo, government-run Korean Internet security center director, told reporters that the introduction of investigation to collect evidence north Korea so far. In response to criticism of officials in June was detected attacks, jun said, this is because the direction of the march and June is different, so it is difficult to be found earlier.
Spring, said the attackers trying to steal personal information from the targets of cyber attacks on June 25. Investigators, he said, can't find the information is stolen, hackers attack before the preparatory work, or in the attack itself.
Local media reports, hundreds of thousands of people's personal information stolen presidential office website and the ruling party.
Survey management restore data on hard disk drive attack destroyed on 25 June, north Korea found an Internet protocol address.
In June, the Treasury said the attackers had tried to conceal his identity hidden Internet protocol address, the destruction of hard disk drives and their use. Attackers are also trying to mislead investigators using a global hacking group known as anonymous images, the ministry said.
The IP address of the hacker can usually be disguised. But the attackers to use the same IP address on June 25, two ways of terrorist attacks - send and receive data - so they may not be forged, jun said.
The researchers also found that the code used in the attack in June has the same functionality, on March 20, in a larger shut down hundreds of thousands of south Korean broadcasters and bank code used in the computer network attack, suggests that the hacker group was behind the attacks.
Earlier this month, web security firm said march against hackers behind also has been trying to steal military secrets of malicious code, South Korea and the United States, they have been sent via the Internet for many years. They didn't particularly accused north Korea, but they are not held South Korea found north Korea responsible for dispute.
Headquartered in Santa Clara, California, McAfee LABS, said researchers the malware's purpose is to find and upload information refers to U.S. forces in South Korea, joint exercises or even the word "secret".
McAfee says, a sustained attack, it requires that the Trojan operation, because the code version of the ancient city of weaving the malware has infected many websites.
South Korea's national intelligence service denial of service attacks blamed north Korea in 2009, the imperfect of dozens of sites, including the President's office. Seoul also believe that the north bank of the ja in 2011 and a national newspaper, in 2012, the central daily, network the server is responsible for the attack.
Experts think, north Korea culture cyber-warriors a large team of the south and its Allies should prepare to critical infrastructure and military systems of possible attacks. If conflict into cyberspace, north and South Korea South Korea society deeply cable will have more losses than north Korea, which remain largely in the offline state.
On Tuesday, the day before from rival north Korea Seoul officials meeting failed to find a way to run factories in the park together. National plan on Wednesday, another round of talks to restart the kaesong complex, have unusual high during April hatred is closed before the rest of the last symbol of reconciliation.



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