US authorities have provided more details of two pieces of malware which, they said, are used by North Korean hackers to infiltrate computer systems and steal passwords and other data. The Department of Homeland Security and the FBI said that North Korean hackers have been using both Joanap, a remote access tool (RAT), and Brambul, a Server Message Blockworm, since at least 2009 to target companies working in the media, aerospace, financial, and critical infrastructure sectors.

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