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Threat Research
Blog Malware Ransomware
What is a Rootkit? Exploring the Hidden Threats and Their Impact on System Security
Learn what Rootkits are, how sophisticated threat actors leverage them to gain full control of computers and systems, and how to protect your systems from this unique risk.
Dor Nizar, Malware Researcher
12.08.2024
6 min
Blog Threat Reports and Advisories Attack Techniques Detection Mitigation and Response Ransomware
China-Nexus Threat Group ‘Velvet Ant’ Exploits Cisco Zero-Day (CVE-2024-20399) to Compromise Nexus Switch Devices – Advisory for Mitigation and Response
Learn about the forensic investigation by Sygnia, the cyber espionage operation by Velvet Ant, and best practices for safeguarding your network against sophisticated threats.
Sygnia Team
1.07.2024
7 min
Forensics Incident Response Ransomware Research
Sygnia’s Annual Field Report series 2024
Learn how to leverage your existing security estate and assets effectively, ensuring a powerful defense against cyber threats. Stay ahead of the curve and download the full report.
Sygnia’s Annual Field Report series 2024
3.06.2024
1 min
Blog Attack Techniques Cyber Crime Detection Ransomware
China-Nexus Threat Group ‘Velvet Ant’ Abuses F5 Load Balancers for Persistence
Discover the detailed forensic investigation by Sygnia into the sophisticated cyber attack by Velvet Ant on a major organization.
Sygnia Team
3.06.2024
22 min
Blog Attack Techniques Detection Ransomware
ESXi Ransomware Attacks: Evolution, Impact, and Defense Strategy
Understand how ransomware attacks unfold in virtualized environments, and how to defend against these attacks across each phase of the cyber-attack kill chain.
Nital Ruzin, Omer Kidron
15.05.2024
16 min
Blog Attack Techniques Cyber Crime Detection Forensics Incident Response Malware Ransomware Research
Chapter 3 – Reversing DoSvc C++ using Ghidra – Part 1
In this chapter, we’ll finally get started on my favorite part: the reversing phase. Reversing is like looking for a needle in a haystack, so prepare yourselves, because things are about to get technical.
Binyamin Levine, Oleg Lerner
6.05.2024
18 min
Blog Attack Techniques Cyber Crime Detection Forensics Incident Response Malware Ransomware Research
Chapter 2 – Black Box Research
The intricacies of WUDO (Windows Update Delivery Optimization).
Binyamin Levine, Oleg Lerner
16.04.2024
23 min
Blog Attack Techniques Cyber Crime Detection Forensics Incident Response Malware Ransomware Research
Chapter 1 – Introduction
The intricacies of WUDO (Windows Update Delivery Optimization).
Binyamin Levine, Oleg Lerner
1.04.2024
6 min
Blog Attack Techniques Cyber Crime Detection Forensics Incident Response Malware Ransomware Research
The Anatomy of a BlackCat (ALPHV) Attack
Explore the thwarted cyber extortion attempt by the BlackCat ransomware group, unraveled by Sygnia's Incident Response team in 2023.
Oren Biderman, Amir Sadon
5.03.2024
28 min
Blog Attack Techniques Detection Malware Ransomware Research
Threat Actor Spotlight: RagnarLocker Ransomware
Explore the threat of RagnarLocker ransomware. Uncover its tactics and implications in this Sygnia blog spotlight on cyber threats.
Oren Biderman, Amnon Kushnir, Gopal Purohit, Dan Saunders, Etai Livne
10.04.2023
14 min
Threat Reports and Advisories Attack Techniques Detection Malware Ransomware Research
Revealing Emperor Dragonfly: Night Sky and Cheerscrypt – A Single Ransomware Group
The outcome of investigation by Sygnia's incident response teams - Cheerscrypt & Night Sky are rebrands of one ransomware group, named ‘Emperor Dragonfly’.
Oren Biderman, Amnon Kushnir, Noam Lifshitz, Ori Porag, Yoav Mazor, Erez Kalman, Haim Nachmias
3.10.2022
12 min
Blog Attack Techniques Detection Malware Ransomware Research
Vice Society Ransomware Group: Threats to Health & Education Sector
Professionals across all industries, agree that the Vice Society ransomware group is a major cyber threat, especially in health & education sector
Oren Biderman, Shani Adir Nissim, Noam Lifshitz, Eran Liloof, Or Zuckerman Farkash
15.09.2022
4 min
Solutions
Blog Attack Techniques Detection Malware Ransomware Research
Vice Society TTPs: Insights from a Real-World Ransomware Investigation
Get technical insights based on forensic investigations of Vice Society (ransomware group carrying out double extortion attacks) conducted by our IR team.
Oren Biderman, Shani Adir Nissim, Noam Lifshitz, Eran Liloof, Or Zuckerman Farkash
2.09.2022
9 min
Threat Reports and Advisories Attack Techniques Malware Ransomware
Key Takeaways Leak of Conti crime group information
Shared thoughts and insights following our analysis of the leaked Conti (cyber crime group) information and the groups modus operandi.
Amnon Kushnir, Yoav Mazor, Noam Lifshitz, Etai Livne, Yoav Flint, Amir Becker
17.04.2022
5 min
Threat Reports and Advisories Attack Techniques Detection Malware Ransomware Vulnerabilities
Kaseya Ransomware Supply Chain Attack
Get a deep dive into the Kaseya ransomware attack, and how you can deploy effective defense strategies.
Kaseya Ransomware Supply Chain Attack
1.08.2021
3 min
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