China-linked FamousSparrow APT group resurfaces with enhanced capabilities
ESET investigated suspicious activity on the network of a trade group in the United States that operates in the financial sector. While helping the affected entity remediate …
Google fixes exploited Chrome sandbox bypass zero-day (CVE-2025-2783)
Google is in the process of rolling out Chrome v134.0.6998.178 to Windows users to fix CVE-2025-2783, a zero-day vulnerability that allowed attackers to to bypass Chrome …
APTs have been using zero-day Windows shortcut exploit for eight years (ZDI-CAN-25373)
State-sponsored threat actors and cybercrime groups from North Korea, Iran, Russia, and China have been exploiting a zero-day Windows vulnerability with no fix in sight for …
China-based Silver Fox spoofs healthcare app to deliver malware
Silver Fox, a China-based threat actor that may or may not be backed by the Chinese government, has been delivering the ValleyRAT backdoor to unsuspecting users by disguising …
A PostgreSQL zero-day was also exploited in US Treasury hack (CVE-2025-1094)
The suspected Chinese state-sponsored hackers who breached workstations of several US Treasury employees in December 2024 did so by leveraging not one, but two zero-days, …
Sandworm APT’s initial access subgroup hits organizations accross the globe
A subgroup of Russia’s Sandworm APT has been working to achieve initial and persistent access to the IT networks of organizations working in economic sectors Russia is …
China-aligned PlushDaemon APT compromises supply chain of Korean VPN
ESET researchers have uncovered a supply chain attack targeting a South Korean VPN provider, carried out by PlushDaemon, a newly identified China-aligned APT group. In this …
How Russian hackers went after NGOs’ WhatsApp accounts
Star Blizzard, a threat actor tied to the Russian Federal Security Service (FSB), was spotted attempting to compromise targets’ WhatsApp accounts through a clever …
RomCom hackers chained Firefox and Windows zero-days to deliver backdoor
Russia-aligned APT group RomCom was behind attacks that leveraged CVE-2024-9680, a remote code execution flaw in Firefox, and CVE-2024-49039, an elevation of privilege …
Faraway Russian hackers breached US organization via Wi-Fi
Forest Blizzard, a threat group associated with Russia’s GRU military intelligence service, repeatedly breached a US-based organization via compromised computer systems …
Researchers unearth two previously unknown Linux backdoors
ESET researchers have identified multiple samples of two previously unknown Linux backdoors: WolfsBane and FireWood. The goal of the backdoors and tools discovered is …
FBI confirms China-linked cyber espionage involving breached telecom providers
After months of news reports that Chinese threat actors have breached the networks of US telecommunications and internet service providers, the FBI and the Cybersecurity and …