Kaspersky's analysis of Operation FlashHole describes a Lazarus Group campaign against South Korea that follows Operation SyncHole. The earliest evidence dates to July 2025, and the campaign was observed in January. At least three organizations in the software, construction and wired communication equipment manufacturing sectors were affe…
FortiGuard Incident Response reports a supply chain attack on the QuickFox Windows application, whose trojanized components deployed the FDMTP implant to users. QuickFox's user base is mainly Chinese international students and expats. Affected Windows versions are those later than v3.0.35 and earlier than v3.55.6. QuickFox has removed the…
ESET Research reports that the China-aligned APT group FamousSparrow has been using a new modular C++ backdoor, SparroWocky, since at least August 2025. The backdoor has replaced SparrowDoor as the group's main implant. From mid-2025 into 2026, about 90% of the group's targets in ESET telemetry were in Latin America, mostly governmental e…
Kaspersky analysis of an installer first classified as adware (MD5 c24e99f9437feacaa63766a3cde3fe3d) found that it delivers the ValleyRAT backdoor. The installer drops a modified, signed Chinese wallpaper tool, QN Wallpaper, and uses it for DLL sideloading of a malicious libcef.dll. The adware's advertising function does not work. Attacke…
A malicious version 0.7.4 of the mrmustard photonic quantum computing library (Xanadu) was published to PyPI on July 23, 2026, after the account of the project's lead maintainer (ziofil, Filippo Miatto) was compromised. Importing the package reads SSH private keys, AWS credentials and the Kubernetes config, then sends them to an attacker-…
Kaspersky researchers describe a new MacSync macOS infostealer variant, first seen in the wild in September 2026, that replaces the earlier AppleScript-based droppers with FAT Mach-O binaries written in Objective-C and Swift. MacSync is sold as malware-as-a-service, so delivery varies by operator. In this campaign it spread through malici…
Elastic Security Labs is tracking REF8801, a campaign in which a fake Web3 venture capital accelerator, Apex Accelerator (Apex Foundation), targets cryptocurrency startups and founders with malicious npm packages. The packages, @apexacc/cli and @apexacc/audit, pose as an AI advisor and an MCP-based security scanner, with offers of free Cl…