Cross-Platform

QuimaRAT is a cross-platform, Java-based remote access trojan sold as a malware-as-a-service subscription on the dark web. It targets Windows, macOS, and Linux systems by embedding JNA native libraries for multiple architectures within a JAR archive built for Java SE 8. The RAT decrypts an internal configuration file using repeating-key XOR, performs anti-analysis and virtualization checks, establishes persistence via OS-specific mechanisms, and maintains resilient C2 communication through HANDSHAKE and HEARTBEAT protocols. With 23 implemented commands and 212 protocol-only commands, the platform is highly extensible through runtime modules and fileless payloads.

2026-05-265 minCrowdStrikecritical

CrowdStrike, in collaboration with Google and Shadowserver, successfully dismantled the Glassworm botnet, a highly resilient threat targeting software developers. The threat actors utilized trojanized IDE extensions and malicious package dependencies to deploy GlasswormRAT, leveraging a complex C2 infrastructure spanning the Solana blockchain, BitTorrent DHT, and Google Calendar to maintain persistent access to developer environments.

2026-05-136 minElastic Security Labshigh

Threat actor REF6598 is targeting the financial and cryptocurrency sectors using social engineering to trick victims into opening a malicious Obsidian vault. The attack leverages Obsidian's community plugins to execute cross-platform attack chains, culminating in the deployment of the PHANTOMPULSE RAT on Windows and an AppleScript dropper on macOS.

2026-05-136 minElastic Security Labscritical

A compromised maintainer account for the widely used axios npm package published backdoored versions that deliver a cross-platform Remote Access Trojan (RAT). The malicious payload, triggered via a postinstall hook in a decoy dependency, deploys identical C2 frameworks across Windows, macOS, and Linux systems while employing anti-forensic techniques to hide its tracks.

2026-05-136 minElastic Security Labscritical

A critical supply chain attack compromised the popular Axios npm package, utilizing a malicious transitive dependency to execute cross-platform payloads during installation. The attack targets Linux, Windows, and macOS systems, deploying OS-specific Remote Access Trojans (RATs) capable of host profiling, command execution, and follow-on payload delivery. Detection engineering efforts should focus on anomalous process ancestry, such as Node.js spawning native OS shells to retrieve and background remote payloads.