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Kimsuky

NSA, FBI Alert on N. Korean Hackers Spoofing Emails from Trusted Sources

The U.S. government on Thursday published a new cybersecurity advisory warning of North Korean threat actors’ attempts to send emails in a manner that makes them appear like they are from legitimate and trusted parties. The joint bulletin was published by the National Security Agency (NSA), the Federal Bureau of Investigation (FBI), and the Department […]

N. Korea-linked Kimsuky Shifts to Compiled HTML Help Files in Ongoing Cyberattacks

The North Korea-linked threat actor known as Kimsuky (aka Black Banshee, Emerald Sleet, or Springtail) has been observed shifting its tactics, leveraging Compiled HTML Help (CHM) files as vectors to deliver malware for harvesting sensitive data. Kimsuky, active since at least 2012, is known to target entities located in South Korea as well as North […]

Kimsuky’s New Golang Stealer ‘Troll’ and ‘GoBear’ Backdoor Target South Korea

The North Korea-linked nation-state actor known as Kimsuky is suspected of using a previously undocumented Golang-based information stealer called Troll Stealer. The malware steals “SSH, FileZilla, C drive files/directories, browsers, system information, [and] screen captures” from infected systems, South Korean cybersecurity company S2W said in a new technical report. Troll Stealer’s links to Kimsuky stem […]

Kimsuky Hackers Deploying AppleSeed, Meterpreter, and TinyNuke in Latest Attacks

Nation-state actors affiliated to North Korea have been observed using spear-phishing attacks to deliver an assortment of backdoors and tools such as AppleSeed, Meterpreter, and TinyNuke to seize control of compromised machines. South Korea-based cybersecurity company AhnLab attributed the activity to an advanced persistent threat group known as Kimsuky. “A notable point about attacks that […]

Lazarus Group Using Log4j Exploits to Deploy Remote Access Trojans

The notorious North Korea-linked threat actor known as the Lazarus Group has been attributed to a new global campaign that involves the opportunistic exploitation of security flaws in Log4j to deploy previously undocumented remote access trojans (RATs) on compromised hosts. Cisco Talos is tracking the activity under the name Operation Blacksmith, noting the use of […]

German and South Korean Agencies Warn of Kimsuky’s Expanding Cyber Attack Tactics

German and South Korean government agencies have warned about cyber attacks mounted by a threat actor tracked as Kimsuky using rogue browser extensions to steal users’ Gmail inboxes. The joint advisory comes from Germany’s domestic intelligence apparatus, the Federal Office for the Protection of the Constitution (BfV), and South Korea’s National Intelligence Service (NIS). The […]