North Korean threat actor Citrine Sleet exploiting Chromium zero-day


On August 19, 2024, Microsoft identified a North Korean threat actor exploiting a zero-day vulnerability in Chromium, now identified as CVE-2024-7971, to gain remote code execution (RCE). Microsoft researchers assess with high confidence that the observed exploitation of CVE-2024-7971 can be attributed to a North Korean threat actor targeting the cryptocurrency sector for financial gain.

Microsoft ongoing analysis and observed infrastructure lead them to attribute this activity with medium confidence to Citrine Sleet. The researchers note that while the FudModule rootkit deployed has also been attributed to Diamond Sleet, another North Korean threat actor, Microsoft previously identified shared infrastructure and tools between Diamond Sleet and Citrine Sleet, and our analysis indicates this might be shared use of the FudModule malware between these threat actors.

Read more…
Source: Microsoft


Sign up for our Newsletter


Related:

  • Indian pharmacy chain giant exposed customer data and internal systems

    February 17, 2026

    A major Indian pharmacy chain operated a flawed platform which exposed highly sensitive data of millions of users, experts have warned. DavaIndia Pharmacy, the pharmacy arm of Zota Healthcare, currently runs more than 2,300 stores across the country – however, its platform was bugged in a way that allowed unauthenticated users to create “super admin” ...

  • Google patches first Chrome zero-day of the year

    February 16, 2026

    Google has patched a high-severity vulnerability in the Chrome browser which was apparently being used as a zero-day in the wild. In a security advisory, Google said it addressed CVE-2026-2441, a “use after free in CSS in Google Chrome prior to 145.0.7632.75”. This bug, given a severity score of 8.3/10 (high), allows threat actors to execute ...

  • EU Parliament blocks AI tools over cyber, privacy fears

    February 16, 2026

    he European Parliament has disabled AI features on the work devices of lawmakers and their staff over cybersecurity and data protection concerns, according to an internal email seen by POLITICO. The chamber emailed its members on Monday to say it had disabled “built-in artificial intelligence features” on corporate tablets after its IT department assessed it couldn’t ...

  • CVE-2024-43468: Attackers exploiting critical Microsoft bug from 2024

    February 13, 2026

    According to the US Cybersecurity and Infrastructure Security Agency (CISA) a SQL injection flaw in Microsoft Configuration Manager patched in October 2024 is now being actively exploited, exposing unpatched businesses and government agencies to attack. CISA added CVE-2024-43468 to its Known Exploited Vulnerabilities catalog on Thursday, setting a March 5 deadline for federal agencies to deploy the ...

  • Major telco breach sees 6.2 million users have personal info leaked

    February 13, 2026

    Dutch telecommunications company Odido has confirmed suffering a cyberattack and losing sensitive data on millions of people. In a notice published on its website, the company says it “deeply regrets” the situation and is “fully committed” to limiting its impact. “Based on investigation, the incident concerns personal data from a customer contact system used by Odido,” ...

  • World Leaks Ransomware Group Adds Stealthy, Custom Malware ‘RustyRocket’ to Attacks

    February 12, 2026

    World Leaks, the cyber-criminal data extortion group which has targeted some of the world’s biggest companies, has added a novel, never-before-seen malware to their arsenal, research by Accenture Cybersecurity has revealed. Accenture has named the malware ‘RustyRocket’. It allows World Leaks to stealthily maintain persistence on networks and forms a key part of the extortion groups’ ...