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SEOUL, 16 May 2017:
Cybersecurity researchers have found evidence they say could link North Korea with the WannaCry cyber attack that has infected more than 300,000 computers worldwide, as global authorities scrambled to prevent hackers from spreading new versions of the virus.
In Malaysia, cybersecurity firm LE Global Services said it identified 12 cases so far – including a large government-linked corporation, a government-linked investment firm and an insurance company. It did not name any of the entities.
“We may not see the real picture yet, as companies are not mandated to disclose security breaches to authorities in Malaysia,” said LE Global CEO Fong Choong Fook.
“The real situation may be serious. In one of the cases, the attack was traced back to early April.”
A researcher from South Korea’s Hauri Labs today said their own findings matched those of Symantec and Kaspersky Lab, who said yesterday some code in an earlier version of the WannaCry software had also appeared in programmes used by the Lazarus Group, identified by some researchers as a North Korea-run hacking operation.
“It is similar to North Korea’s backdoor malicious codes,” said Simon Choi, a senior researcher with Hauri who has done extensive research into North Korea’s hacking capabilities and advises South Korean police and National Intelligence Service.
Both Symantec and Kaspersky said it was too early to tell whether North Korea was involved in the attacks, based on the evidence that was published on Twitter by Google security researcher Neel Mehta.
The attacks, which slowed yesterday, are among the fastest-spreading extortion campaigns on record.
In China, foreign ministry spokeswoman Hua Chunying said she had no information to share, when asked about the origin of the attack and whether North Korea might be connected.
Several Asian countries have been affected by the malware, although the impact has not been as widespread as some had feared.
Vietnam’s state media today said more than 200 computers had been affected.
Taiwan Power Co said that nearly 800 of its computers were affected, although these were used for administration, not for systems involved in electricity generation.
FireEye Inc, another large cyber security firm, said it was also investigating, but it was cautious about drawing a link to North Korea.
“The similarities we see between malware linked to that group and WannaCry are not unique enough to be strongly suggestive of a common operator,” FireEye researcher John Miller said.
US and European security officials said on condition of anonymity that it was too early to say who might be behind the attacks, but they did not rule out North Korea as a suspect.
The Lazarus hackers, acting for impoverished North Korea, have been more brazen in their pursuit of financial gain than others, and have been blamed for the theft of US$81 million from the Bangladesh central bank, according to some cyber security firms.
The US accused it of being behind a cyber attack on Sony Pictures in 2014.
An official at South Korea’s Korea Internet & Security Agency said today the agency was sharing information with intelligence officials on recent cases reported for damages but was not in position to investigate the source of the attack.
A South Korean police official that handles investigations into hacking and cyber breaches said he was aware of reports on the North Korean link, but said police were not investigating yet.
Victims haven’t requested investigations but they want their systems to be restored, the official said.
North Korea has denied being behind the Sony and banking attacks. North Korean officials were not immediately available for comment and its state media has been quiet about the matter.
Hauri researcher Choi said the code bore similarities with those allegedly used by North Korean hackers in the Sony and bank heists.
Based on his conversations with North Korean hackers, he said the reclusive state had been developing and testing ransomware programmes since August.
In one case, alleged hackers from North Korea demanded bitcoin in exchange for client information they had stolen from a South Korean shopping mall, Choi added.
While the attacks have raised concerns for cyber authorities and end-users worldwide, they have helped cybersecurity stocks as investors bet governments and corporations will spend more to upgrade their defences.
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