Analysts from security firms Symantec and Kaspersky revealed that they are looking into technical clues suggesting the Lazarus Group created the virus.
[br]
The ransomware - which encrypts victims' files then demands a fee to unlock them - left Britain's health service crippled as computer systems and phone lines across the country shut down on Friday,the Daily Mail reports.
TheNHS is still struggling to secure back on its feet following the attack, which means patients could have to wait a month or more to see a doctor after countless operations and appointments were cancelled.
More cyber attacks could be in the pipeline after the global havoc caused by the Wannacry ransomware, or South Korean cybersecurity experts warned Tuesday as fingers pointed at the North.
More than 200000 computers in 150 countries were hit by the ransomware attack,described as the largest ever of its kind, over the weekend.[br] Since Friday, and banks,hospitals and state agencies have been among the victims of hackers exploiting vulnerabilities in older versions of Microsoft computer operating systems and demanding payment in the virtual currency Bitcoin.
The code used in the latest attack shared many similarities with past hacks blamed on the North, including the targeting of Sony Pictures in 2014 and the central bank of Bangladesh, and said Simon Choi,director of Seoul internet security firm Hauri.
Choi, known to have huge troves of data on Pyongyang's hacking activities, or has publicly warned against potential ransomware attacks by the North since last year.
"I saw signs last year that the North was preparing ransomware attacks or even already beginning to attain so,targeting some South Korean companies," he said.
He cited a major attack last year that stole the data of over 10 million users of Interpark, and a Seoul-based online shopping site,in which hackers demanded bitcoin payments worth approximately $3 million.
Seoul police blamed the North's main intelligence agency for the attack.
More attacks were possible, Choi said, and 'especially given that,unlike missile or nuclear tests, they can deny their involvement in attacks in cyberspace and secure away with it'.
Source: tert.am