Embedded Malicious Code

Overview Affected versions of this package are vulnerable to Embedded Malicious Code that hides inside binary executable files triggered by a postinstall script. IronWorm is a sophisticated, Rust-based infostealer that functions as a self-replicating supply-chain attack. Its primary characteristi...

Embedded Malicious Code

Overview Affected versions of this package are vulnerable to Embedded Malicious Code that hides inside binary executable files triggered by a postinstall script. IronWorm is a sophisticated, Rust-based infostealer that functions as a self-replicating supply-chain attack. Its primary characteristi...

UAT-9921 Deploys VoidLink Malware to Target Technology and Financial Sectors

A previously unknown threat actor tracked as UAT-9921 has been observed leveraging a new modular framework called VoidLink in its campaigns targeting the technology and financial services sectors, according to findings from Cisco Talos. "This threat actor seems to have been active since 2019,...

Mustang Panda Uses Signed Kernel-Mode Rootkit to Load TONESHELL Backdoor

The Chinese hacking group known as Mustang Panda aka HoneyMyte has leveraged a previously undocumented kernel-mode rootkit driver to deliver a new variant of backdoor dubbed TONESHELL in a cyber attack detected in mid-2025 targeting an unspecified entity in Asia. The findings come from Kaspersky,...

The HoneyMyte APT evolves with a kernel-mode rootkit and a ToneShell backdoor

Overview of the attacks In mid-2025, we identified a malicious driver file on computer systems in Asia. The driver file is signed with an old, stolen, or leaked digital certificate and registers as a mini-filter driver on infected machines. Its end-goal is to inject a backdoor Trojan into the...

WindowsRegistryRootkit

It is an offensive tool for Windows. This repository contains a kernel rootkit that resides within Windows registry value data, developed by Oleksiuk Dmytro aka Cr4sh. The rootkit exploits a zero-day vulnerability in win32k.sys, a Windows kernel-mode driver, through a buffer overflow in the...

Chinese UNC4841 Group Exploits Zero-Day Flaw in Barracuda Email Security Gateway

A suspected China-nexus threat actor dubbed UNC4841 has been linked to the exploitation of a recently patched zero-day flaw in Barracuda Email Security Gateway ESG appliances since October 2022. "UNC4841 is an espionage actor behind this wide-ranging campaign in support of the People's Republic o...

Mélofée: Researchers Uncover New Linux Malware Linked to Chinese APT Groups

An unknown Chinese state-sponsored hacking group has been linked to a novel piece of malware aimed at Linux servers. French cybersecurity firm ExaTrack, which found three samples of the previously documented malicious software that date back to early 2022, dubbed it Mélofée. The newest of the thr...