Apr 05, 2024NewsroomAdvanced Persistent Threat Multiple China-nexus threat actors have been linked to the zero-day exploitation of three security flaws impacting Ivanti appliances (CVE-2023-46805, CVE-2024-21887, and CVE-2024-21893). The clusters are being tracked by Mandiant under the monikers UNC5221, UNC5266, UNC5291, UNC5325, UNC5330, and UNC5337. Another group linked to the exploitation spree is UNC3886. The Google […]
Feb 01, 2024NewsroomNetwork Security / Malware Google-owned Mandiant said it identified new malware employed by a China-nexus espionage threat actor known as UNC5221 and other threat groups during post-exploitation activity targeting Ivanti Connect Secure VPN and Policy Secure devices. This includes custom web shells such as BUSHWALK, CHAINLINE, FRAMESTING, and a variant of LIGHTWIRE. “CHAINLINE […]
Jan 20, 2024NewsroomZero Day / Cyber Espionage An advanced China-nexus cyber espionage group previously linked to the exploitation of security flaws in VMware and Fortinet appliances has been linked to the abuse of a critical vulnerability in VMware vCenter Server as a zero-day since late 2021. “UNC3886 has a track record of utilizing zero-day vulnerabilities […]
An unnamed Southeast Asian government has been targeted by multiple China-nexus threat actors as part of espionage campaigns targeting the region over extended periods of time. “While this activity occurred around the same time and in some instances even simultaneously on the same victims’ machines, each cluster is characterized by distinct tools, modus operandi, and […]