From Social Engineering to DMARC Abuse: TA427’s Art of Information Gathering

Proofpoint researchers track numerous state-sponsored and state-aligned threat actors. TA427 (also known as Emerald Sleet, APT43, THALLIUM or Kimsuky), a Democratic People’s Republic of Korea (DPRK or North Korea) aligned group working in support of the Reconnaissance General Bureau, is Read More …

U.S., South Korea, Japan to step up actions on North Korea cyber threats

The United States, South Korea and Japan agreed new initiatives on Saturday to respond to North Korea’s threats in cyberspace, including cryptocurrency abuses and space launches, White House National Security Adviser Jake Sullivan said. The three countries’ national security advisers Read More …

Diamond Sleet supply chain compromise distributes a modified CyberLink installer

Microsoft Threat Intelligence has uncovered a supply chain attack by the North Korea-based threat actor Diamond Sleet (ZINC) involving a malicious variant of an application developed by CyberLink Corp., a software company that develops multimedia software products. This malicious file Read More …

Hacking Employers and Seeking Employment: Two Job-Related Campaigns Bear Hallmarks of North Korean Threat Actors

Unit 42 researchers recently discovered two separate campaigns targeting job-seeking activities linked to state-sponsored threat actors associated with the Democratic People’s Republic of Korea (DPRK), commonly known as North Korea. The research team call the first campaign “Contagious Interview,” where Read More …

Multiple North Korean threat actors exploiting the TeamCity CVE-2023-42793 vulnerability

Since early October 2023, Microsoft has observed two North Korean nation-state threat actors – Diamond Sleet and Onyx Sleet – exploiting CVE-2023-42793, a remote-code execution vulnerability affecting multiple versions of JetBrains TeamCity server. TeamCity is a continuous integration/continuous deployment (CI/CD) Read More …

Assessed Cyber Structure and Alignments of North Korea in 2023

Historically Mandiant has made assessments on the Democratic People’s Republic of Korea’s (DPRK) cyber program based on Mandiant responses to intrusions, defector accounts, and OSINT reporting, in conjunction with government disclosures of DPRK units and motivation information. These assessments were Read More …

US charges crypto founders over alleged support for North Korean hackers

The United States has charged two cofounders of the cryptocurrency mixer Tornado Cash with money laundering and other crimes a year after authorities banned the Russian-founded platform over its alleged support of North Korean hackers. Roman Semenov and Roman Storm Read More …

North Korea Leverages SaaS Provider in a Targeted Supply Chain Attack

In July 2023, Mandiant Consulting responded to a supply chain compromise affecting a US-based software solutions entity. Mandiant researchers believe the compromise ultimately began as a result of a sophisticated spear phishing campaign aimed at JumpCloud, a zero-trust directory platform Read More …

What is the status of US, Israel cyberwars?

On June 19, 2022, false rocket-warning sirens were activated in Jerusalem and Eilat, caused by a stunning cyber attack by Iran. Israel’s cyber authorities at the time tried to downplay the hack, which seemed to have significant national security implications. Read More …