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Incident response | Breaking Cybersecurity News | The Hacker News

Category — Incident response
Ransomware Defense Using the Wazuh Open Source Platform

Ransomware Defense Using the Wazuh Open Source Platform

Nov 04, 2025 Threat Detection / Cybercrime
Ransomware is malicious software designed to block access to a computer system or encrypt data until a ransom is paid. This cyberattack is one of the most prevalent and damaging threats in the digital landscape, affecting individuals, businesses, and critical infrastructure worldwide. A ransomware attack typically begins when the malware infiltrates a system through various vectors such as phishing emails, malicious downloads, or exploiting software vulnerabilities. Once activated, the malware encrypts files using strong cryptographic algorithms, rendering them inaccessible to the legitimate owner. The attackers then demand payment, usually in cryptocurrency like Bitcoin, in exchange for the decryption key. Modern ransomware variants have evolved beyond simple file encryption. Some employ double extortion tactics, where attackers encrypt data, exfiltrate sensitive information, and threaten to publish it publicly if the ransom is not paid. This puts pressure on victims, particularly...
Microsoft Detects "SesameOp" Backdoor Using OpenAI's API as a Stealth Command Channel

Microsoft Detects "SesameOp" Backdoor Using OpenAI's API as a Stealth Command Channel

Nov 04, 2025 Artificial Intelligence / Malware
Microsoft has disclosed details of a novel backdoor dubbed SesameOp that uses OpenAI Assistants Application Programming Interface (API) for command-and-control (C2) communications. "Instead of relying on more traditional methods, the threat actor behind this backdoor abuses OpenAI as a C2 channel as a way to stealthily communicate and orchestrate malicious activities within the compromised environment," the Detection and Response Team (DART) at Microsoft Incident Response said in a technical report published Monday. "To do this, a component of the backdoor uses the OpenAI Assistants API as a storage or relay mechanism to fetch commands, which the malware then runs." The tech giant said it discovered the implant in July 2025 as part of a sophisticated security incident in which unknown threat actors had managed to maintain persistence within the target environment for several months. It did not name the impacted victim. Further investigation into the intrusio...
The Evolution of SOC Operations: How Continuous Exposure Management Transforms Security Operations

The Evolution of SOC Operations: How Continuous Exposure Management Transforms Security Operations

Nov 03, 2025 SOC Operations / Exposure Management
Security Operations Centers (SOC) today are overwhelmed. Analysts handle thousands of alerts every day, spending much time chasing false positives and adjusting detection rules reactively. SOCs often lack the environmental context and relevant threat intelligence needed to quickly verify which alerts are truly malicious. As a result, analysts spend excessive time manually triaging alerts, the majority of which are classified as benign. Addressing the root cause of these blind spots and alert fatigue isn't as simple as implementing more accurate tools. Many of these traditional tools are very accurate, but their fatal flaw is a lack of context and a narrow focus - missing the forest for the trees. Meanwhile, sophisticated attackers exploit exposures invisible to traditional reactive tools, often evading detection using widely-available bypass kits .  While all of these tools are effective in their own right, they often fail because of the reality that attackers don't employ just ...
cyber security

2025 Cybersecurity Assessment Report: Navigating the New Reality

websiteBitdefenderCybersecurity / Attack Surface
Insights from 1,200 security professionals reveal perception gaps, concealed breaches, and new concerns about AI-backed attacks.
cyber security

Keeper Security recognized in the 2025 Gartner® Magic Quadrant™ for PAM

websiteKeeper SecurityAgentic AI / Identity Management
Access the full Magic Quadrant report and see how KeeperPAM compares to other leading PAM platforms.
ASD Warns of Ongoing BADCANDY Attacks Exploiting Cisco IOS XE Vulnerability

ASD Warns of Ongoing BADCANDY Attacks Exploiting Cisco IOS XE Vulnerability

Nov 01, 2025 Artificial Intelligence / Vulnerability
The Australian Signals Directorate (ASD) has issued a bulletin about ongoing cyber attacks targeting unpatched Cisco IOS XE devices in the country with a previously undocumented implant known as BADCANDY . The activity, per the intelligence agency, involves the exploitation of CVE-2023-20198 (CVSS score: 10.0), a critical vulnerability that allows a remote, unauthenticated attacker to create an account with elevated privileges and use it to seize control of susceptible systems. The security defect has come under active exploitation in the wild since last 2023, with China-linked threat actors like Salt Typhoon weaponizing it in recent months to breach telecommunications providers. ASD noted that variations of BADCANDY have been detected since October 2023, with a fresh set of attacks continuing to be recorded in 2024 and 2025. As many as 400 devices in Australia are estimated to have been compromised with the malware since July 2025, out of which 150 devices were infected in Oct...
The Death of the Security Checkbox: BAS Is the Power Behind Real Defense

The Death of the Security Checkbox: BAS Is the Power Behind Real Defense

Oct 30, 2025 Breach Simulation / AI Security
Security doesn't fail at the point of breach. It fails at the point of impact.  That line set the tone for this year's Picus Breach and Simulation (BAS) Summit , where researchers, practitioners, and CISOs all echoed the same theme: cyber defense is no longer about prediction. It's about proof. When a new exploit drops, scanners scour the internet in minutes. Once attackers gain a foothold, lateral movement often follows just as fast. If your controls haven't been tested against the exact techniques in play, you're not defending, you're hoping things don't go seriously pear-shaped. That's why pressure builds long before an incident report is written. The same hour an exploit hits Twitter, a boardroom wants answers. As one speaker put it, "You can't tell the board, 'I'll have an answer next week.' We have hours, not days." BAS has outgrown its compliance roots and become the daily voltage test of cybersecurity, the current you run through your stack to see what actuall...
Why Early Threat Detection Is a Must for Long-Term Business Growth

Why Early Threat Detection Is a Must for Long-Term Business Growth

Oct 28, 2025 Threat Intelligence / SOC Operations
In cybersecurity, speed isn't just a win — it's a multiplier. The faster you learn about emerging threats, the faster you adapt your defenses, the less damage you suffer, and the more confidently your business keeps scaling. Early threat detection isn't about preventing a breach someday: it's about protecting the revenue you're supposed to earn every day. Companies that treat cybersecurity as a reactive cost center usually find themselves patching holes, paying ransoms, and dealing with downtime. Companies that invest in proactive visibility, threat intelligence, and early detection mechanisms stay in the game longer. With trust, uptime, and innovation intact. Let's break down why this strategy directly connects to long-term business success: 1. Early detection drastically lowers the cost of incidents A breach caught at initial access might cost just internal response hours. Caught at data exfiltration — multiply the cost by 10, and a breach caught after regulatory violations kick...
Qilin Ransomware Combines Linux Payload With BYOVD Exploit in Hybrid Attack

Qilin Ransomware Combines Linux Payload With BYOVD Exploit in Hybrid Attack

Oct 27, 2025 Ransomware / Threat Intelligence
The ransomware group known as Qilin (aka Agenda, Gold Feather, and Water Galura) has claimed more than 40 victims every month since the start of 2025, barring January, with the number of postings on its data leak site touching a high of 100 cases in June. The development comes as the ransomware-as-a-service (RaaS) operation has emerged as one of the most active ransomware groups , accounting for 84 victims each in the months of August and September 2025. The Russian-speaking threat group emerged around July 2022. According to data compiled by Cisco Talos, the U.S., Canada, the U.K., France, and Germany are some of the countries most impacted by Qilin. The attacks have primarily singled out manufacturing (23%), professional and scientific services (18%), and wholesale trade (10%) sectors. Attacks mounted by Qilin affiliates have likely leveraged leaked administrative credentials on the dark web for initial access using a VPN interface, followed by performing RDP connections to th...
Bridging the Remediation Gap: Introducing Pentera Resolve

Bridging the Remediation Gap: Introducing Pentera Resolve

Oct 22, 2025 Security Validation / Incident Response
From Detection to Resolution: Why the Gap Persists A critical vulnerability is identified in an exposed cloud asset. Within hours, five different tools alert you about it: your vulnerability scanner, XDR, CSPM, SIEM, and CMDB each surface the issue in their own way, with different severity levels, metadata, and context. What's missing is a system of action. How do you transition from the detection and identification of a security issue to remediation and resolution? The Continuous Threat Exposure Management (CTEM) framework was introduced to help organizations address this challenge, calling for a repeatable approach to scoping, discovery, validation, and ultimately, the mobilization of remediation efforts. The goal is not just to identify risk, but to act on it, continuously and at scale. In most environments, that mobilization happens, but it relies on manual processes. Findings remain fragmented across tools, each with its own format, language, and logic. The responsibility to ...
LinkPro Linux Rootkit Uses eBPF to Hide and Activates via Magic TCP Packets

LinkPro Linux Rootkit Uses eBPF to Hide and Activates via Magic TCP Packets

Oct 16, 2025 Vulnerability / Malware
An investigation into the compromise of an Amazon Web Services (AWS)-hosted infrastructure has led to the discovery of a new GNU/Linux rootkit dubbed LinkPro , according to findings from Synacktiv. "This backdoor features functionalities relying on the installation of two eBPF [extended Berkeley Packet Filter] modules, on the one hand to conceal itself, and on the other hand to be remotely activated upon receiving a 'magic packet,'" security researcher Théo Letailleur said . The infection, per the French cybersecurity company, involved the attackers exploiting an exposed Jenkins server vulnerable to CVE-2024-23897 (CVSS score: 9.8) as the starting point, following which a malicious Docker Hub image named "kvlnt/vv" (now removed) was deployed on several Kubernetes clusters. The Docker image consists of a Kali Linux base along with a folder called "app" containing three files - start.sh, a shell script to start the SSH service and execute the...
F5 Breach Exposes BIG-IP Source Code — Nation-State Hackers Behind Massive Intrusion

F5 Breach Exposes BIG-IP Source Code — Nation-State Hackers Behind Massive Intrusion

Oct 15, 2025 Vulnerability / Threat Intelligence
U.S. cybersecurity company F5 on Wednesday disclosed that unidentified threat actors broke into its systems and stole files containing some of BIG-IP's source code and information related to undisclosed vulnerabilities in the product. It attributed the activity to a "highly sophisticated nation-state threat actor," adding the adversary maintained long-term, persistent access to its network. The company said it learned of the breach on August 9, 2025, per a Form 8-K filing with the U.S. Securities and Exchange Commission (SEC). F5 said it delayed the public disclosure at the request of the U.S. Department of Justice (DoJ). "We have taken extensive actions to contain the threat actor," it noted . "Since beginning these activities, we have not seen any new unauthorized activity, and we believe our containment efforts have been successful." F5 did not say for how long the threat actors had access to its BIG-IP product development environment, but em...
Hackers Target ICTBroadcast Servers via Cookie Exploit to Gain Remote Shell Access

Hackers Target ICTBroadcast Servers via Cookie Exploit to Gain Remote Shell Access

Oct 15, 2025 Vulnerability / Server Security
Cybersecurity researchers have disclosed that a critical security flaw impacting ICTBroadcast, an autodialer software from ICT Innovations, has come under active exploitation in the wild. The vulnerability, assigned the CVE identifier CVE-2025-2611 (CVSS score: 9.3), relates to improper input validation that can result in unauthenticated remote code execution due to the fact that the call center application unsafely passes session cookie data to shell processing. This, in turn, allows an attacker to inject shell commands into a session cookie that can get executed in the vulnerable server. The security flaw affects ICTBroadcast versions 7.4 and below. "Attackers are leveraging the unauthenticated command injection in ICTBroadcast via the BROADCAST cookie to gain remote code execution," VulnCheck's Jacob Baines said in a Tuesday alert. "Approximately 200 online instances are exposed." The cybersecurity firm said that it detected in-the-wild exploitation o...
Experts Warn of Widespread SonicWall VPN Compromise Impacting Over 100 Accounts

Experts Warn of Widespread SonicWall VPN Compromise Impacting Over 100 Accounts

Oct 11, 2025 Cloud Security / Network Security
Cybersecurity company Huntress on Friday warned of "widespread compromise" of SonicWall SSL VPN devices to access multiple customer environments. "Threat actors are authenticating into multiple accounts rapidly across compromised devices," it said . "The speed and scale of these attacks imply that the attackers appear to control valid credentials rather than brute-forcing." A significant chunk of the activity is said to have commenced on October 4, 2025, with more than 100 SonicWall SSL VPN accounts across 16 customer accounts having been impacted. In the cases investigated by Huntress, authentications on the SonicWall devices originated from the IP address 202.155.8[.]73. The company noted that in some instances, the threat actors did not engage in further adversarial actions in the network and disconnected after a short period of time. However, in other cases, the attackers have been found conducting network scanning activity and attempting to access...
Hackers Turn Velociraptor DFIR Tool Into Weapon in LockBit Ransomware Attacks

Hackers Turn Velociraptor DFIR Tool Into Weapon in LockBit Ransomware Attacks

Oct 11, 2025 Network Security / Vulnerability
Threat actors are abusing Velociraptor, an open-source digital forensics and incident response (DFIR) tool, in connection with ransomware attacks likely orchestrated by Storm-2603 (aka CL-CRI-1040 or Gold Salem), which is known for deploying the Warlock and LockBit ransomware. The threat actor's use of the security utility was documented by Sophos last month. It's assessed that the attackers weaponized the on-premises SharePoint vulnerabilities known as ToolShell to obtain initial access and deliver an outdated version of Velociraptor (version 0.73.4.0) that's susceptible to a privilege escalation vulnerability ( CVE-2025-6264 ) to enable arbitrary command execution and endpoint takeover, per Cisco Talos . In the attack in mid-August 2025, the threat actors are said to have made attempts to escalate privileges by creating domain admin accounts and moving laterally within the compromised environment, as well as leveraging the access to run tools like Smbexec to remotely...
From Detection to Patch: Fortra Reveals Full Timeline of CVE-2025-10035 Exploitation

From Detection to Patch: Fortra Reveals Full Timeline of CVE-2025-10035 Exploitation

Oct 10, 2025 Vulnerability / Network Security
Fortra on Thursday revealed the results of its investigation into CVE-2025-10035 , a critical security flaw in GoAnywhere Managed File Transfer (MFT) that's assessed to have come under active exploitation since at least September 11, 2025. The company said it began its investigation on September 11 following a "potential vulnerability" reported by a customer, uncovering "potentially suspicious activity" related to the flaw.  That same day, Fortra said it contacted on-premises customers who were identified as having their GoAnywhere admin console accessible to the public internet and that it notified law enforcement authorities about the incident. A hotfix for versions 7.6.x, 7.7.x, and 7.8.x of the software was made available the next day, with full releases incorporating the patch – versions 7.6.3 and 7.8.4 – made available on September 15. Three days later, a CVE for the vulnerability was formally published, it added. "The scope of the risk of this...
The AI SOC Stack of 2026: What Sets Top-Tier Platforms Apart?

The AI SOC Stack of 2026: What Sets Top-Tier Platforms Apart?

Oct 10, 2025 Artificial Intelligence / Threat Detection
The SOC of 2026 will no longer be a human-only battlefield. As organizations scale and threats evolve in sophistication and velocity, a new generation of AI-powered agents is reshaping how Security Operations Centers (SOCs) detect, respond, and adapt. But not all AI SOC platforms are created equal. From prompt-dependent copilots to autonomous, multi-agent systems, the current market offers everything from smart assistants to force-multiplying automation. While adoption is still early— estimated at 1–5% penetration according to Gartner —the shift is undeniable. SOC teams must now ask a fundamental question: What type of AI belongs in my security stack? The Limits of Traditional SOC Automation Despite promises from legacy SOAR platforms and rule-based SIEM enhancements, many security leaders still face the same core challenges: Analyst alert fatigue from redundant low-fidelity triage tasks Manual context correlation across disparate tools and logs Disjointed and static detect...
From LFI to RCE: Active Exploitation Detected in Gladinet and TrioFox Vulnerability

From LFI to RCE: Active Exploitation Detected in Gladinet and TrioFox Vulnerability

Oct 10, 2025 Vulnerability / Zero-Day
Cybersecurity company Huntress said it has observed active in-the-wild exploitation of an unpatched security flaw impacting Gladinet CentreStack and TrioFox products. The zero-day vulnerability, tracked as CVE-2025-11371 (CVSS score: 6.1), is an unauthenticated local file inclusion bug that allows unintended disclosure of system files. It impacts all versions of the software prior to and including 16.7.10368.56560. Huntress said it first detected the activity on September 27, 2025, uncovering that three of its customers have been impacted so far. It's worth noting that both applications were previously affected by CVE-2025-30406 (CVSS score: 9.0), a case of hard-coded machine key that could allow a threat actor to perform remote code execution via a ViewState deserialization vulnerability. The vulnerability has since come under active exploitation. CVE-2025-11371, per Huntress, "allowed a threat actor to retrieve the machine key from the application Web.config fil...
Hackers Access SonicWall Cloud Firewall Backups, Spark Urgent Security Checks

Hackers Access SonicWall Cloud Firewall Backups, Spark Urgent Security Checks

Oct 09, 2025 Cloud Security / Network Security
SonicWall on Wednesday disclosed that an unauthorized party accessed firewall configuration backup files for all customers who have used the cloud backup service. "The files contain encrypted credentials and configuration data; while encryption remains in place, possession of these files could increase the risk of targeted attacks," the company said . It also noted that it's working to notify all partners and customers, adding it has released tools to assist with device assessment and remediation. The company is also urging users to log in and check for their devices. The development comes a couple of weeks after SonicWall urged customers to perform a credential reset after their firewall configuration backup files were exposed in a security breach impacting MySonicWall accounts. The list of impacted devices available on the MySonicWall portal has been assigned a priority level to help customers prioritize remediation efforts. The labels are as follows - Active –...
Oracle Rushes Patch for CVE-2025-61882 After Cl0p Exploited It in Data Theft Attacks

Oracle Rushes Patch for CVE-2025-61882 After Cl0p Exploited It in Data Theft Attacks

Oct 06, 2025 Vulnerability / Threat Intelligence
Oracle has released an emergency update to address a critical security flaw in its E-Business Suite software that it said has been exploited in the recent wave of Cl0p data theft attacks. The vulnerability, tracked as CVE-2025-61882 (CVSS score: 9.8), concerns an unspecified bug that could allow an unauthenticated attacker with network access via HTTP to compromise and take control of the Oracle Concurrent Processing component. "This vulnerability is remotely exploitable without authentication, i.e., it may be exploited over a network without the need for a username and password," Oracle said in an advisory. "If successfully exploited, this vulnerability may result in remote code execution." In a separate alert, Oracle's Chief Security Officer Rob Duhart said the company has released fixes for CVE-2025-61882 to "provide updates against additional potential exploitation that were discovered during our investigation." As indicators of compromise...
How to Close Threat Detection Gaps: Your SOC's Action Plan

How to Close Threat Detection Gaps: Your SOC's Action Plan

Oct 02, 2025 Malware Analysis / Threat Detection
Running a SOC often feels like drowning in alerts. Every morning, dashboards light up with thousands of signals; some urgent, many irrelevant. The job is to find the real threats fast enough to keep cases from piling up, prevent analyst burnout, and maintain client or leadership confidence. The toughest challenges, however, aren't the alerts that can be dismissed quickly, but the ones that hide in plain sight. These tricky threats drag out investigations, create unnecessary escalations, and quietly drain resources over time. Why Detection Gaps Keep Opening What slows SOCs down isn't the flood of alerts alone but the way investigations get split across disconnected tools. Intel in one platform, detonation in another, enrichment in a third; every switch wastes time. Across hundreds of cases, those minutes add up to stalled investigations, unnecessary escalations, and threats that linger longer than they should. Action Plan That Delivers 3× SOC Efficiency in Threat Detection SOC tea...
Ukraine Warns of CABINETRAT Backdoor + XLL Add-ins Spread via Signal ZIPs

Ukraine Warns of CABINETRAT Backdoor + XLL Add-ins Spread via Signal ZIPs

Oct 01, 2025 Malware / Incident Response
The Computer Emergency Response Team of Ukraine (CERT-UA) has warned of new targeted cyber attacks in the country using a backdoor called CABINETRAT. The activity, observed in September 2025, has been attributed to a threat cluster it tracks as UAC-0245 . The agency said it spotted the attack following the discovery of software tools taking the form of XLL files , which refer to Microsoft Excel add-ins that are typically used to extend the functionality of Excel with custom functions. Further investigation has uncovered that the XLL files are distributed within ZIP archives shared on the Signal messaging app, disguised as a document concerning the detention of individuals who had attempted to cross the Ukrainian border. The XLL, once launched, is designed to create a number of executables on the compromised host, namely an EXE file in the Startup folder, an XLL file named "BasicExcelMath.xll" in the "%APPDATA%\Microsoft\Excel\XLSTART\" directory, and a PNG ima...
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