Key Points Yurei Ransomware Check Point Research discovered a new ransomware group on September 5. The group calls themselves Yurei (a sort of spirit in Japanese folklore), and initially listed one victim, a Sri Lankan food manufacturing company, on their darknet blog. These blogs are used by ransomware groups to list their victims, show proofs […] The post Yurei & The Ghost of Open Source Ransomware appeared first on Check Point Research .
U.S. CISA adds Dassault Systèmes DELMIA Apriso flaw to its Known Exploited Vulnerabilities catalog
Source: https://securityaffairs.com/182120/hacking/u-s-cisa-adds-dassault-systemes-delmia-apriso-flaw-to-its-known-exploited-vulnerabilities-catalog.html
A new Android banking trojan named RatOn has emerged, combining NFC relay attacks with remote access and automated transfer capabilities. Discovered by analysts monitoring the NFSkate threat group, RatOn targets cryptocurrency wallets and banking applications, particularly in the Czech Republic and Slovakia. The malware is distributed through adult-themed websites and employs a multi-stage infection process. RatOn features overlay attacks, automated money transfers, and cryptocurrency wallet takeovers. It demonstrates sophisticated capabilities, including screen casting, PIN interception, and extensive bot commands. The trojan's evolution from a basic NFC relay tool to a complex RAT with ATS functionality makes it a significant threat in the mobile malware landscape.
Czech cyber agency warns against Chinese tech in critical infrastructure
Source: https://www.bleepingcomputer.com/news/security/czech-cyber-agency-warns-against-chinese-tech-in-critical-infrastructure/
A sophisticated phishing campaign called ZipLine is targeting U.S.manufacturing companies, especially those in supply chain-critical sectors. The attackers initiate contact through company contact forms, leading to weeks-long email conversations before delivering malicious payloads. They use legitimate-looking business interactions and AI-related pretexts to build trust. The campaign employs a custom malware called MixShell, which uses DNS TXT tunneling for command and control. The attackers utilize domains matching registered U.S.companies and maintain similar template websites across multiple domains. The campaign primarily targets U.S.-based organizations in industrial manufacturing, hardware, semiconductors, and other sectors, affecting both large enterprises and smaller businesses.
MixShell Malware Delivered via Contact Forms Targets U.S. Supply Chain Manufacturers
Source: https://thehackernews.com/2025/08/mixshell-malware-delivered-via-contact.html
The first half of 2025 saw a 1.4-fold increase in ransomware attacks in Japan compared to the previous year, with 68 confirmed cases. Small and medium-sized enterprises remained the primary targets, with manufacturing being the most affected industry. The ransomware group Qilin emerged as the most active threat, responsible for eight incidents. A new group, Kawa4096, appeared in late June, targeting Japanese companies. The analysis also details the KaWaLocker ransomware, including its configuration, encryption methods, and the emergence of KaWaLocker 2.0 with enhanced features. The continued evolution and intensification of ransomware activities in Japan highlight the need for increased cybersecurity measures across various industries.
A new ransomware family called Charon has been identified, targeting the Middle East's public sector and aviation industry. The attack employs sophisticated APT-style techniques, including DLL sideloading, process injection, and anti-EDR capabilities. Charon uses a multistage payload extraction technique and a hybrid cryptographic scheme combining Curve25519 with ChaCha20 cipher. The ransomware exhibits network propagation capabilities and includes a dormant anti-EDR component. The campaign demonstrates a concerning trend of ransomware operators adopting APT-level techniques, posing an elevated risk to organizations. Defending against Charon requires a multilayered approach, including hardening against DLL sideloading, limiting lateral movement, strengthening backup capabilities, and reinforcing user awareness.
A newly emerged ransomware group called Dire Wolf has been observed since May 2025, targeting multiple sectors globally with a focus on manufacturing and technology. The group employs double extortion tactics, encrypting files and threatening to publish stolen data. Analysis of a Dire Wolf ransomware sample revealed it was written in Golang and uses a combination of Curve25519 and ChaCha20 algorithms for encryption. The malware disables event logging, terminates specific processes and services, and deletes backups and recovery options. Victims are given personalized ransom notes with login details for negotiation. As of writing, 16 victims across 11 nations have been listed on the group's leak site, with the US and Thailand being the most affected.
This report examines recent activities attributed to the XDSpy threat actor, focusing on an ongoing campaign targeting Eastern European and Russian governmental entities using the XDigo malware since March 2025. The investigation stemmed from analyzing a vulnerability in LNK files, leading to the discovery of a multi-stage infection chain. The report provides analysis of the XDigo implant and its connections to previous XDSpy activities. It also details the exploitation of LNK parsing issues and infrastructure used across different campaigns. The research uncovered additional, more recent XDSpy activity employing an alternative infection chain. Targets include government entities in Eastern Europe, with a confirmed victim in Belarus.
BERT Ransomware, active since March 2025, has expanded its operations to target both Windows and Linux environments. The group uses phishing for initial access and communicates via the dark web and Sessions for negotiations. Victims span multiple countries, primarily affecting service and manufacturing sectors. The Windows variant employs multiple file extensions and RSA encryption, while the Linux version shares code with Sodinokibi/REvil ransomware. A weaponized PowerShell script is used to disable security features before payload execution. The ransomware's infrastructure is linked to a Russian firm, suggesting potential ties to the region.
An investigation into domains associated with the LummaC2 infostealing-malware campaign revealed a broader network of nearly 500 domains with highly malicious risk scores. These domains share similar registration patterns, including the use of Eastern European names and the inbox[.]eu email domain. The domains predominantly advertise technical education courses, but are likely lures for malware delivery. Four domains were identified as LummaC2 login panels. The campaign's infrastructure uses specific TLDs, naming conventions, and a Hong Kong address linked to OFAC-sanctioned entities. Security teams are advised to monitor for similar domain patterns, scrutinize suspicious training sites, and educate users about the risks.
Kali Linux 2025.2 released with 13 new tools, car hacking updates
Source: https://www.bleepingcomputer.com/news/security/kali-linux-20252-released-with-13-new-tools-car-hacking-updates/
An investigation into VexTrio, a malicious traffic distribution system (TDS), revealed surprising connections between WordPress hackers and adtech companies. When VexTrio's operations were disrupted, multiple malware actors migrated to a new TDS that was discovered to be related to VexTrio. Several commercial TDSs were found to share software elements with VexTrio and benefit from its relationship with website malware actors. The investigation uncovered a complex network of adtech firms, including Partners House, BroPush, and RichAds, that use similar technologies and tactics to distribute malicious content. These firms have information about the identities of malware actors, which could potentially lead to their disruption.
SinoTrack GPS Devices Vulnerable to Remote Vehicle Control via Default Passwords
Source: https://thehackernews.com/2025/06/sinotrack-gps-devices-vulnerable-to.html
