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| Src | Date (GMT) | Titre | Description | Tags | Stories | Notes |
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2024-03-06 01:05:06 | Faits saillants hebdomadaires d'osint, 4 mars 2024 Weekly OSINT Highlights, 4 March 2024 (lien direct) |
## Weekly OSINT Highlights, 4 March 2024 Ransomware loomed large in cyber security research news this week, with our curated OSINT featuring research on Abyss Locker, BlackCat, and Phobos. Phishing attacks, information stealers, and spyware are also in the mix, highlighting the notable diversity in the cyber threat landscape. The OSINT reporting this week showcases the evolving tactics of threat actors, with operators increasingly employing multifaceted strategies across different operating systems. Further, the targets of these attacks span a wide range, from civil society figures targeted by spyware in the Middle East and North Africa to state and local governments victimized by ransomware. The prevalence of attacks on sectors like healthcare underscores the significant impact on critical infrastructure and the potential for substantial financial gain through ransom payments. 1. [**Abyss Locker Ransomware Evolution and Tactics**](https://ti.defender.microsoft.com/articles/fc80abff): Abyss Locker ransomware, derived from HelloKitty, exfiltrates victim data before encryption and targets Windows systems, with a subsequent Linux variant observed. Its capabilities include deleting backups and employing different tactics for virtual machines, indicating a growing sophistication in ransomware attacks. 2. [**ALPHV Blackcat Ransomware-as-a-Service (RaaS)**:](https://ti.defender.microsoft.com/articles/b85e83eb) The FBI and CISA warn of ALPHV Blackcat RaaS, which targets multiple sectors, particularly healthcare. Recent updates to ALPHV Blackcat include improved defense evasion, encryption capabilities for Windows and Linux, reflecting the increasing sophistication in ransomware operations. 3. [**Phobos RaaS Model**](https://ti.defender.microsoft.com/articles/ad1bfcb4): Phobos ransomware, operating as a RaaS model, frequently targets state and local governments. Its use of accessible open-source tools enhances its popularity among threat actors, emphasizing the ease of deployment and customization for various environments. 4. [**TimbreStealer Phishing Campaign**](https://ti.defender.microsoft.com/articles/b61544ba): Talos identifies a phishing campaign distributing TimbreStealer, an information stealer disguised as Mexican tax-related themes. The threat actor was previously associated with banking trojans, underscoring the adaptability and persistence of malicious actors. 5. [**Nood RAT Malware Features and Stealth**](https://ti.defender.microsoft.com/articles/cc509147): ASEC uncovers Nood RAT, a Linux-based variant of Gh0st RAT, equipped with encryption and disguised as legitimate software. The malware\'s flexibility in binary creation and process naming underscores the threat actor\'s intent to evade detection and carry out malicious activities with sophistication. 6. [**Predator Spyware Infrastructure and Targeting**](https://ti.defender.microsoft.com/articles/7287eb1b): The Insikt Group\'s discovery highlights the widespread use of Predator spyware, primarily targeting journalists, politicians, and activists in various countries. Despite its purported use for counterterrorism and law enforcement, Predator is employed by threat actors outside these contexts, posing significant privacy and safety risks. ## Learn More For the latest security research from the Microsoft Threat Intelligence community, check out the Microsoft Threat Intelligence Blog: [https://aka.ms/threatintelblog](https://aka.ms/threatintelblog) and the following blog posts: - [Ransomware as a service: Understanding the cybercrime gig economy and how to protect yourself](https://www.microsoft.com/en-us/security/blog/2022/05/09/ransomware-as-a-service-understanding-the-cybercrime-gig-economy-and-how-to-protect-yourself/?ocid=magicti_ta_blog#defending-against-ransomware) Microsoft customers can use the following reports in Microsoft Defender Threat Intelligence to get the most up-to-date information about the threat actor, malicious activity, and techniques discussed in this summary. The following | Ransomware Spam Malware Tool Threat Legislation Medical | ★★★★ |
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