A North Korea-linked cyber hacking group appears to have launched a new cyberattack campaign, code-named "Artemis," that embeds malicious code inside computer files, a report showed Monday. The Genians Security Center (GSC), a South Korean cybersecurity institute, said in a report that it detected the operation believed to have been carried out by APT37, a Pyongyang-backed cyber hacking group. According to the report, the threat actors embedded malicious object linking and embedding (OLE) code inside Hangul Word Processor (HWP) documents. An attack chain is triggered when a user allows the opening of the document's content and clicks a hyperlink in the file. HWP is a document file format widely used as a standard in South Korea. The findings follow an October report by 38 North, a U.S.-based website monitoring North Korea, which said North Korean cyber operators have repeatedly exploited the HWP format to infiltrate government, military and key industrial networks in South Korea. "This attack demonstrates APT37's ongoing pattern of highly developed reconnaissance and infiltration activiti