Red Team | Breaking Cybersecurity News | The Hacker News

Cybersecurity involves both playing the good guy and the bad guy. Diving deep into advanced technologies and yet also going rogue in the Dark Web. Defining technical policies and also profiling attacker behavior. Security teams cannot be focused on just ticking boxes, they need to inhabit the attacker's mindset. This is where AEV comes in. AEV (Adversarial Exposure Validation) is an advanced offense technology that mimics how adversaries will attack your system, while providing remediation strategies. It lets you discover and address how your environment can be exploited and what the impact of the exploitation could be, in a dynamic and ongoing way. In this article, we'll share everything you need to know about AEV, and how your team can leverage it to build continuous resilience against attacks. What is AEV? According to the Gartner® Market Guide for Adversarial Exposure Validation (March 2025), AEV is defined as "technologies that deliver consistent, continuous, and automated ...

Threat actors are attempting to abuse the open-source EDRSilencer tool as part of efforts to tamper endpoint detection and response (EDR) solutions and hide malicious activity. Trend Micro said it detected "threat actors attempting to integrate EDRSilencer in their attacks, repurposing it as a means of evading detection." EDRSilencer , inspired by the NightHawk FireBlock tool from MDSec, is designed to block outbound traffic of running EDR processes using the Windows Filtering Platform ( WFP ). It supports terminating various processes related to EDR products from Microsoft, Elastic, Trellix, Qualys, SentinelOne, Cybereason, Broadcom Carbon Black, Tanium, Palo Alto Networks, Fortinet, Cisco, ESET, HarfangLab, and Trend Micro. By incorporating such legitimate red teaming tools into their arsenal, the goal is to render EDR software ineffective and make it a lot more challenging to identify and remove malware. "The WFP is a powerful framework built into Windows for ...

Cybersecurity researchers have flagged the discovery of a new post-exploitation red team tool called Splinter in the wild. Palo Alto Networks Unit 42 shared its findings after it discovered the program on several customers' systems. "It has a standard set of features commonly found in penetration testing tools and its developer created it using the Rust programming language," Unit 42's Dominik Reichel said . "While Splinter is not as advanced as other well-known post-exploitation tools like Cobalt Strike, it still presents a potential threat to organizations if it is misused." Penetration testing tools are often used for red team operations to flag potential security issues in a company's network. However, such adversary simulation tools can also be weaponized by threat actors to their advantage.  Unit 42 said it has not detected any threat actor activity associated with the Splinter tool set. There is no information as yet on who developed the t...

Cybersecurity researchers have identified a malicious Python package that purports to be an offshoot of the  popular requests library  and has been found concealing a Golang-version of the Sliver command-and-control (C2) framework within a PNG image of the project's logo.  The package employing this steganographic trickery is  requests-darwin-lite , which has been downloaded 417 times prior to it being taken down from the Python Package Index (PyPI) registry. Requests-darwin-lite "appeared to be a fork of the ever-popular requests package with a few key differences, most notably the inclusion of a malicious Go binary packed into a large version of the actual requests side-bar PNG logo," software supply chain security firm Phylum  said . The changes have been introduced in the package's setup.py file, which has been configured to decode and execute a Base64-encoded command to gather the system's Universally Unique Identifier ( UUID ), but...

Over the past two years, a shocking  51% of organizations surveyed in a leading industry report have been compromised by a cyberattack.  Yes, over half.  And this, in a world where enterprises deploy  an average of 53 different security solutions  to safeguard their digital domain.  Alarming? Absolutely. A recent survey of CISOs and CIOs, commissioned by Pentera and conducted by Global Surveyz Research, offers a quantifiable glimpse into this evolving battlefield, revealing a stark contrast between the growing risks and the tightening budget constraints under which cybersecurity professionals operate. With this report, Pentera has once again taken a magnifying glass to the state of pentesting to release its annual report about today's pentesting practices. Engaging with 450 security executives from North America, LATAM, APAC, and EMEA—all in VP or C-level positions at organizations with over 1,000 employees—the report paints a current picture of modern...

Today's security leaders must manage a constantly evolving attack surface and a dynamic threat environment due to interconnected devices, cloud services, IoT technologies, and hybrid work environments. Adversaries are constantly introducing new attack techniques, and not all companies have internal Red Teams or unlimited security resources to stay on top of the latest threats. On top of that, today's attackers are indiscriminate and every business - big or small - needs to be prepared. It is no longer enough for security teams to  detect and respond ; we must now also  predict and prevent . To handle today's security environment, defenders need to be agile and innovative. In short, we need to start thinking like a hacker.  Taking the mindset of an opportunistic threat actor allows you to not only gain a better understanding of potentially exploitable pathways, but also to more effectively prioritize your remediation efforts. It also helps you move past potentially harm...

A few days ago, a friend and I were having a rather engaging conversation that sparked my excitement. We were discussing my prospects of becoming a red teamer as a natural career progression. The reason I got stirred up is not that I want to change either my job or my position, as I am a happy camper being part of Cymulate's blue team. What upset me was that my friend could not grasp the idea that I wanted to keep working as a blue teamer because, as far as he was concerned, the only natural progression is to move to the red team.  Red teams include many roles ranging from penetration testers to attackers and exploit developers. These roles attract most of the buzz, and the many certifications revolving around these roles (OSCP, OSEP, CEH) make them seem fancy. Movies usually make hackers the heroes, while typically ignoring the defending side, the complexities and challenges of blue teamers' roles are far less known. While blue teams' defending roles might not sound as...

FireEye, one of the largest cybersecurity firms in the world, said on Tuesday it became a victim of a  state-sponsored attack  by a "highly sophisticated threat actor" that stole its arsenal of Red Team penetration testing tools it uses to test the defenses of its customers. The company said it's actively investigating the breach in coordination with the US Federal Bureau of Investigation (FBI) and other key partners, including Microsoft. It did not identify a specific culprit who might be behind the breach or disclose when the hack exactly took place. However,  The New York Times  and  The Washington Post  reported that the FBI has turned over the investigation to its Russian specialists and that the attack is likely the work of  APT29  (or Cozy Bear) — state-sponsored hackers affiliated with Russia's SVR Foreign Intelligence Service — citing unnamed sources. As of writing, the hacking tools have not been exploited in the wild, nor do they ...

What is the difference between a penetration test and a red team exercise? The common understanding is that a red team exercise is a pen-test on steroids, but what does that mean? While both programs are performed by ethical hackers, whether they are in-house residents or contracted externally, the difference runs deeper. In a nutshell, a pen-test is performed to discover exploitable vulnerabilities and misconfigurations that would potentially serve unethical hackers. They primarily test the effectiveness of security controls and employee security awareness. The purpose of a red team exercise, in addition to discovering exploitable vulnerabilities, is to exercise the operational effectiveness of the security team, the blue team. A red team exercise challenges the blue team's capabilities and supporting technology to detect, respond, and recover from a breach. The objective is to improve their incident management and response procedures. The challenge with pen-testing and red te...

What if you could easily host malicious websites, send phishing emails, and manage compromised hosts across diverse internet addresses? This week's Cobalt Strike adds the ability to manage multiple attack servers at once. Here's how it works: When you connect to two or more servers, Cobalt Strike will show a switch bar with buttons for each server at the bottom of your window. Click a button to make that server active. It's a lot like using tabs to switch between pages in a web browser. To make use of multiple servers, designate a role for each one. Assign names to each server's button to easily remember its role. Dumbly connecting to multiple servers isn't very exciting. The fun comes when you seamlessly use Cobalt Strike features between servers. For example: Designate one server for phishing and another for reconnaissance. Go to the reconnaissance server, setup the system profiler website. Use the phishing tool to deliver the reconnaissa...