- The Resurgence of IoT Malware: Inside the Mirai-Based Botnet Campaign
August 22, 2025
Over the past year, FortiGuard Labs has been tracking a stealthy malware strain exploiting a range of vulnerabilities to infiltrate systems. Initially disclosed by a Chinese cybersecurity firm under the name “Gayfemboy.” The malware resurfaced this past July with new activity, this time targeting vulnerabilities in products from vendors such as DrayTek, TP-Link, Raisecom, and Cisco, ...
- A clever new Linux malware is breaking into systems and then shutting the door behind it to avoid detection
August 19, 2025
A hacker was recently spotted patching someone’s vulnerable cloud Linux instance – but they did not do it out of the goodness of their heart. Security researchers Red Canary observed a threat actor abusing a maximum severity flaw, tracked as CVE-2023-46604, to break into a cloud Linux system. The vulnerability is found in Apache ActiveMQ, and ...
- GodRAT – New RAT targeting financial institutions
August 19, 2025
In September 2024, Kaspersky researchers detected malicious activity targeting financial (trading and brokerage) firms through the distribution of malicious .scr (screen saver) files disguised as financial documents via Skype messenger. The threat actor deployed a newly identified Remote Access Trojan (RAT) named GodRAT, which is based on the Gh0st RAT codebase. To evade detection, the attackers ...
- Evolution of the PipeMagic backdoor: from the RansomExx incident to CVE-2025-29824
August 18, 2025
In April 2025, Microsoft patched 121 vulnerabilities in its products. According to the company, only one of them was being used in real-world attacks at the time the patch was released: CVE-2025-29824. The exploit for this vulnerability was executed by the PipeMagic malware, which Kaspersky researchers first discovered in December 2022 in a RansomExx ransomware campaign. ...
- New Ransomware Charon Uses Earth Baxia APT Techniques to Target Enterprises
August 12, 2025
Trend Micro researchers recently identified a new ransomware family called Charon, deployed in a targeted attack observed in the Middle East’s public sector and aviation industry. The threat actor employed a DLL sideloading technique notably similar to tactics previously documented in the Earth Baxia campaigns, which have historically targeted government sectors. The attack chain leveraged a ...
- Malicious Packages Across Open-Source Registries: Detection Statistics and Trends (Q2 2025)
August 4, 2025
In this previous blog, Fortiguard Labs highlighted a growing trend in the use of open source software (OSS) repositories as channels for malware distribution in supply chain security. With the continued reliance on third-party packages in development workflows, threat actors are increasingly exploiting vulnerabilities in the open-source ecosystem to propagate malicious code, exfiltrate data, and cause ...
- Gunra Ransomware Group Unveils Efficient Linux Variant
July 29, 2025
Gunra ransomware was first observed in April 2025 in a campaign that targeted Windows systems using techniques inspired by the infamous Conti ransomware. Trend Micror monitoring of the ransomware landscape revealed that threat actors behind Gunra have expanded with a Linux variant, signaling a strategic move toward cross-platform targeting. The novel ransomware group has already made ...
- Endgame Gear warns mouse config tool has been infected with malware
July 29, 2025
Gaming kit maker Endgame Gear has confirmed it was the victim of a supply chain attack which saw unidentified threat actors break into its website and replace a legitimate configuration tool with a trojanized version containing malware. In an announcement posted on the company’s website, it said on June 26 2025, someone managed to replace a ...
- GhostContainer backdoor: Malware compromising Exchange servers of high-value organizations in Asia
July 17, 2025
In a recent incident response (IR) case, Kaspersky researchers discovered highly customized malware targeting Exchange infrastructure within government environments. Analysis of detection logs and clues within the sample suggests that the Exchange server was likely compromised via a known N-day vulnerability. Kaspersky in-depth analysis of the malware revealed a sophisticated, multi-functional backdoor that can be dynamically ...
- Amatera Stealer: Rebranded ACR Stealer With Improved Evasion, Sophistication
July 16, 2025
Proofpoint has been closely monitoring a stealer malware formerly known as ACR Stealer. In 2025, Proofpoint analysts identified a new, unnamed malware exhibiting significant code overlap, shared features, and capabilities with ACR Stealer. Further investigation revealed that ACR Stealer was significantly updated and rebranded as Amatera Stealer. While Amatera Stealer retains the core of its predecessor, ...