UNC5221
Google: Brickstorm malware used to steal U.S. orgs’ data for over a year
Suspected Chinese hackers have used the Brickstorm malware in long-term persistence espionage operations against U.S. organizations in the technology and legal sectors. Brickstorm is a Go-based backdoor documented by Google in April 2024 following China-related intrusions that spawned from various edge devices and remained undetected in the victim environment for more than a year, on average. The […]
Ivanti EPMM flaw exploited by Chinese hackers to breach govt agencies
Chinese hackers have been exploiting a remote code execution flaw in Ivanti Endpoint Manager Mobile (EPMM) to breach high-profile organizations worldwide. The flaw is identified as CVE-2025-4428 and received a high-severity score. The issue can be leveraged to execute code remotely on Ivanti EPMM version 12.5.0.0 and earlier via specially crafted API requests. Ivanti disclosed the flaw together […]
Ivanti patches Connect Secure zero-day exploited since mid-March
Ivanti has released security updates to patch a critical Connect Secure remote code execution vulnerability exploited by a China-linked espionage actor to deploy malware since at least mid-March 2025. Tracked as CVE-2025-22457, this critical security flaw is due to a stack-based buffer overflow weakness. It impacts Pulse Connect Secure 9.1x (which reached end-of-support in December), Ivanti […]