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North Korea 'behind cyber attack' on South websites North Korea 'behind cyber attack' on South websites
(35 minutes later)
South Korea believes North Korea was behind cyber attacks against several websites last month, officials say.South Korea believes North Korea was behind cyber attacks against several websites last month, officials say.
The attacks, which took place on the anniversary of the Korean War, hit the presidential office website, and several other official and media sites.The attacks, which took place on the anniversary of the Korean War, hit the presidential office website, and several other official and media sites.
Investigators said an IP address used in the attack matched one used in previous hacking attempts by Pyongyang.Investigators said an IP address used in the attack matched one used in previous hacking attempts by Pyongyang.
The North has also been blamed for cyber attacks on six South Korean banks and broadcasters in March.The North has also been blamed for cyber attacks on six South Korean banks and broadcasters in March.
"The cyber attack seriously undermined the country's image by [altering] the websites of symbolic government organisations, such as the presidential office Cheong Wa Dae," the Ministry of Science, ICT and Future Planning said in a statement. "We speculate the hacking was done by North Korea," Park Jae-moon, a director-general at the Ministry of Science, ICT and Future Planning, said.
It added that the method of the attack matched those used in previous attacks by the North, and "the malware used... has been confirmed to be a variation of the malware found in the 20 March cyber attack [by North Korea]". Analysis of "82 malignant codes [collected from the damaged devices] and internet addresses used for the attack, as well as the North Korea's previous hacking patterns," showed that "the hacking methods were the same" as those used in the 20 March cyber attacks, he added.
"[A] North Korean IP [address] was found in passages of the malignant codes and some of the damaged organisations. I can say this is the decisive evidence," Mr Park said.
Almost all the websites and servers affected by the attack had been repaired, he added.
The hackers attempted to steal personal information from the websites, AP news agency reported, citing investigators.The hackers attempted to steal personal information from the websites, AP news agency reported, citing investigators.
Almost all the websites and servers affected by the attack had been repaired, science ministry official Park Jae-moon told reporters. Identity confusion
"The cyber attack seriously undermined the country's image by [altering] the websites of symbolic government organisations, such as the presidential office Cheong Wa Dae," the science ministry said in a statement.
Those behind the attack also "caused confusion... by assuming the identity of the hacktivist group Anonymous", the ministry added.
During the 25 June attacks, messages praising North Korean leader Kim Jong-un and claiming that hacking collective Anonymous was responsible were left on the hacked websites.
North Korea has not commented on the hacking accusations.North Korea has not commented on the hacking accusations.
In the past, it has accused both the South and the US of preventing users from being able to visit its official media sites.In the past, it has accused both the South and the US of preventing users from being able to visit its official media sites.
On 20 March, cyber attacks on banks and broadcasters in the South affected 32,000 computers and disrupted banking services.On 20 March, cyber attacks on banks and broadcasters in the South affected 32,000 computers and disrupted banking services.
South Korea blamed that incident - which came at a time of heightened tensions between the two Koreas following Pyongyang's nuclear test on 12 February - on North Korea.South Korea blamed that incident - which came at a time of heightened tensions between the two Koreas following Pyongyang's nuclear test on 12 February - on North Korea.
North Korea has also been blamed for previous cyber attacks in 2009 and 2011.North Korea has also been blamed for previous cyber attacks in 2009 and 2011.