Threats tagged 'brave prince - s0252'

CVE-2026-0257 is an authentication bypass vulnerability in Palo Alto Networks PAN-OS affecting GlobalProtect portal and gateway components. Exploitation allows unauthorized attackers to establish VPN connections without valid credentials. Ransomware groups such as Spikey Scorpius (Qilin), Tarnished Scorpius (Inc), and Settra actively exploit this flaw to gain initial network access. Post-exploitation activities include bypassing multi-factor authentication, internal reconnaissance, lateral movement via RDP and SMB, credential harvesting, and ransomware deployment. Attackers also pivot to virtualization infrastructure by accessing vCenter management appliances, disabling ESXi hypervisor security controls, and performing offline credential dumping from domain controller virtual disks. Multiple industries have been impacted. Patch status is not yet confirmed—check the vendor advisory for current remediation guidance.

In late August, an organization was compromised by INC ransomware affecting at least 175 endpoints. The attack unfolded over several weeks with a 17-day gap, indicating involvement of an initial access broker and a separate ransomware affiliate. Early activity included scheduled tasks with randomized names and lateral movement via RDP using compromised credentials. After the pause, attackers deployed AnyDesk for remote access, used Bring Your Own Vulnerable Driver (BYOVD) techniques to disable security controls, and executed ransomware using Impacket tools. Two ransom notes were found: the standard ransom demand and a secondary data leak threat note listing stolen files and threatening to contact media, employees, and partners within 48 hours to pressure the victim.

In this article Pre-encryption Encryption Post-encryption Defending against DeadLock ransomware Indicators of compromise Microsoft Threat Intelligence tracks DeadLock ransomware as an emerging financially motivated operation distinguished by its use of decentralized infrastructure to support victim communications and data leak operations. Its recovery ecosystem combines the Session messaging network with blockchain-backed services that store and deliver resources used throughout the extortion process. This architecture likely increases the resilience of portions of its communication, leak-hosting, and negotiation infrastructure, allowing DeadLock operators to recover from some disruption efforts while maintaining continuity for victims. Microsoft has observed DeadLock ransomware being deployed by multiple groups including an affiliate of the Lynx and INC ransomware ecosystems. First observed in July 2025, DeadLock operators employ double extortion tactics, encrypting victim environments while threatening to publicly release exfiltrated data. As of July 2026, the operators have published more than 80 compromised organizations on their data leak site, called the DeadLock blog, with more than half of the claimed victims in Europe. Microsoft identified DeadLock ransomware impacting organizations across information technology (IT), mining, transportation and logistics, manufacturing, hospitality, consumer goods, and other sectors in Europe, Asia, North America, South America, and Africa. The DeadLock encryptor includes a resource-aware throttling mechanism designed to maintain system responsiveness during encryption. In addition to its encryption capabilities, the ransomware also appears to implement language or country-based geofencing designed to avoid running in environments associated with former Soviet and Commonwealth of Independent States (CIS)-linked countries as well as select Middle Eastern countries, a pattern commonly observed among ransomware operators believed to operate from those regions. Together, these capabilities demonstrate how DeadLock combines established ransomware tradecraft with decentralized infrastructure designed to improve operational resilience. In this blog, we present a technical analysis of the DeadLock ransomware encryptor, covering its execution flow, defense evasion techniques, encryption design, and post-encryption behaviors, including a decentralized recovery chat system. We also provide indicators of compromise (IOCs), Microsoft Defender detections, and mitigation guidance to help organizations defend against this threat and similar ransomware activity. Pre-encryption Configuration parsing Before performing any malicious activity, the DeadLock encryptor decrypts an embedded configuration blob using XOR decoding with an 8-byte key. Below are the malware’s configuration fields and their values. Field Value Victim UID Malware public key 03bf50bbf97c4e951e66ff12b689a37a3ce675b4921e254eae76da77573843e4a9 Encryption rule 1000,05052429880,025124288000,010524288000,F991114288000 Language exclude list Geofencing language IDs (see Language geofencing ) Process stop list Processes to terminate (see Process and service termination ) Service stop list Services to stop and delete (see Process and service termination ) File exclude list Extensions and file names to avoid encrypting (see Directory traversal ) Directory exclude list Pre-traversal filter with directories to avoid encrypting (see Directory traversal ) Sub-path Exclude List Sub-paths to avoid encrypting during traversal (see Directory traversal ) Text ransom note Full text ransom note content (see Ransom notes deployment ) HTML recovery chat Full HTML/JS interactive chat page (see Recovery chat: Technical architecture ) Language geofencing As an early exit check, the malware queries the system’s default and user interface (UI) languages. If either language matches the exclude list in the configuration, the malware self-deletes immediately withou…

Fox Tempest is a financially motivated threat actor operating a malware-signing-as-a-service (MSaaS) business used by cybercriminals to distribute malicious code, including ransomware. The actor abuses Microsoft Artifact Signing to generate fraudulent code-signing certificates, allowing malware to evade security controls. Fox Tempest created over a thousand certificates and established hundreds of Azure tenants to support operations. Microsoft revoked over one thousand certificates and disrupted the service in May 2026 through the Digital Crimes Unit. The operation enabled ransomware deployment including Rhysida by threat actors like Vanilla Tempest, and distributed malware families including Oyster, Lumma Stealer, and Vidar. The MSaaS was available through signspace[.]cloud, charging between $5000-$9000 USD. Attacks impacted healthcare, education, government, and financial services sectors globally.

This intelligence report analyzes a sophisticated tool designed to disable endpoint security solutions, particularly EDR systems, on infected systems. The tool, known as AVKiller, has been observed in multiple ransomware attacks since 2022. It is heavily protected, targets various security vendors, and uses a driver with a compromised certificate to terminate processes and services. The report details the tool's characteristics, its connection to ransomware attacks, and provides examples of its use in specific ransomware families. Notably, the report highlights evidence of tool sharing and technical knowledge transfer among competing ransomware groups, suggesting a more complex ecosystem than previously thought.

Malware#ransomware#incGermany+9