Guidance on North Korean Cyber Threat U.S

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The U.S. Departments of State, the Treasury, and Homeland Security, and the Federal Bureau of Investigation are issuing this advisory as a comprehensive resource on the North Korean cyber threat for the international community, network defenders, and the public. The advisory highlights the cyber threat posed by North Korea – formally known as the Democratic People’s Republic of Korea (DPRK) – and provides recommended steps to mitigate the threat. In particular, Annex 1 lists U.S. government resources related to DPRK cyber threats and Annex 2 includes a link to the UN 1718 Sanctions Committee (DPRK) Panel of Experts reports.

The DPRK’s malicious cyber activities threaten the United States and the broader international community and, in particular, pose a significant threat to the integrity and stability of the international financial system. Under the pressure of robust U.S. and UN sanctions, the DPRK has increasingly relied on illicit activities – including cybercrime – to generate revenue for its weapons of mass destruction and ballistic missile programs. In particular, the United States is deeply concerned about North Korea’s malicious cyber activities, which the U.S. government refers to as HIDDEN COBRA. The DPRK has the capability to conduct disruptive or destructive cyber activities affecting U.S. critical infrastructure. The DPRK also uses cyber capabilities to steal from financial institutions, and has demonstrated a pattern of disruptive and harmful cyber activity that is wholly inconsistent with the growing international consensus on what constitutes responsible State behavior in cyberspace.

DPRK’s Malicious Cyber Activities Targeting the Financial Sector
Many DPRK cyber actors are subordinate to UN- and U.S.-designated entities, such as the Reconnaissance General Bureau. DPRK state-sponsored cyber actors primarily consist of hackers, cryptologists, and software developers who conduct espionage, cyber-enabled theft targeting financial institutions and digital currency exchanges, and politically-motivated operations against foreign media companies. They develop and deploy a wide range of malware tools around the world to enable these activities and have grown increasingly sophisticated. Common tactics to raise revenue illicitly by DPRK state-sponsored cyber actors include, but are not limited to:

Cyber-Enabled Financial Theft and Money Laundering. The UN Security Council 1718 Committee Panel of Experts’ 2019 mid-term report (2019 POE mid-term report) states that the DPRK is increasingly able to generate revenue notwithstanding UN Security Council sanctions by using malicious cyber activities to steal from financial institutions through increasingly sophisticated tools and tactics. The 2019 POE mid-term report notes that, in some cases, these malicious cyber activities have also extended to laundering funds through multiple jurisdictions. The 2019 POE mid-term report mentions that it was investigating dozens of suspected DPRK cyber-enabled heists and that, as of late 2019, the DPRK has attempted to steal as much as $2 billion through these illicit cyber activities. Allegations in a March 2020 Department of Justice forfeiture complaint are consistent with portions of the POE’s findings. Specifically, the forfeiture complaint alleged how North Korean cyber actors used North Korean infrastructure in furtherance of their conspiracy to hack digital currency exchanges, steal hundreds of millions of dollars in digital currency, and launder the funds.

Extortion Campaigns. DPRK cyber actors have also conducted extortion campaigns against third-country entities by compromising an entity’s network and threatening to shut it down unless the entity pays a ransom. In some instances, DPRK cyber actors have demanded payment from victims under the guise of long-term paid consulting arrangements in order to ensure that no such future malicious cyber activity takes place. DPRK cyber actors have also been paid to hack websites and extort targets for third-party clients.

Cryptojacking. The 2019 POE mid-term report states that the POE is also investigating the DPRK’s use of “cryptojacking,” a scheme to compromise a victim machine and steal its computing resources to mine digital currency. The POE has identified several incidents in which computers infected with cryptojacking malware sent the mined assets – much of it anonymity-enhanced digital currency (sometimes also referred to as “privacy coins”) – to servers located in the DPRK, including at Kim Il Sung University in Pyongyang.

Say CISA.

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