Security advisory

Security Advisory

Chrome Security Update Fixed Active Zero-Day Exploit & Multiple High-Severity Vulnerabilities 

Security advisory : Google has issued a Stable Channel Update for Chrome to address 4 high-severity vulnerabilities, including one zero-day vulnerability (CVE-2025-10585) actively exploited in the wild.

OEM Google 
Severity High 
CVSS Score N/A 
CVEs CVE-2025-10585, CVE-2025-10500, CVE-2025-10501, CVE-2025-10502 
POC Available No 
Actively Exploited Yes 
Exploited in Wild Yes 
Advisory Version 1.0 

Overview 

This flaw, a Type Confusion in the V8 JavaScript and WebAssembly engine, can allow remote attackers to execute arbitrary code outside of Chrome’s security sandbox when users visit maliciously crafted web pages. Users and administrators are urged to update to the latest Chrome version immediately to mitigate potential exploitation 

Vulnerability Name CVE ID Product Affected Severity Fixed Version 
​ Type Confusion in V8 Engine  CVE-2025-10585 Chrome (Windows, Mac, Linux)  High  140.0.7339.185/.186 

Technical Summary 

The zero-day vulnerability in Chrome’s V8 engine arises from a type of confusion flaw, where object types are misinterpreted, leading to logical errors and memory corruption.

Attackers can exploit this issue when users visit maliciously crafted websites, enabling arbitrary code execution and possible sandbox escape.

This flaw has been confirmed as actively exploited in the wild. In addition to this zero-day, the update also fixes three other high-severity issues, a use-after-free in the Dawn graphics abstraction layer that could lead to memory corruption, a use-after-free in WebRTC that may enable remote code execution, and a heap buffer overflow in ANGLE that could result in program crashes or arbitrary code execution. 

CVE ID System Affected  Vulnerability Details Impact 
CVE-2025-10585 Google Chrome (Windows, Mac, Linux) Type confusion in the V8 JavaScript engine could allow memory corruption, arbitrary code execution, and potential sandbox escape Remote Code Execution / Sandbox Escape 

Other Vulnerabilities  

In addition to the zero-day, Google patched three other high-severity vulnerabilities in the same stable channel release. 

Vulnerability Name CVE ID Affected Component Severity 
​Use-after-free in Dawn CVE-2025-10500 Chrome GPU Renderer Component (Dawn)  High 
Use-after-free in WebRTC CVE-2025-10501 Chrome WebRTC Audio/Video Communication Module High 
Heap Buffer Overflow in ANGLE CVE-2025-10502 Chrome Graphics Translation Engine (ANGLE) High 

Recommendations: 

Update Chrome immediately to the following versions: 

  • Windows/Mac: Chrome 140.0.7339.185/.186 
  • Linux: Chrome 140.0.7339.185 

Here are some Recommendations below 

  • Manual Update Check: Navigate to “Settings → Help → About Google Chrome” to trigger the update. 
  • Patch Management: Ensure enterprise update policies enforce Chrome auto-updates. 
  • Threat Monitoring: Keep monitoring logs for any signs of exploitation 

Conclusion: 
There are high vulnerabilities in Google Chrome, including an actively exploited zero-day flaw in the V8 JavaScript engine that poses a significant risk of remote code execution and sandbox escape.

Given the severity and confirmed exploitation in the wild, it is imperative that all users and administrators promptly update to the latest Chrome versions to mitigate potential attacks. Immediate action is essential to safeguard systems, data, and user privacy in light of these emerging threats. 

References: 

  • https://cybersecuritynews.com/google-chrome-0-day-vulnerability-exploited/  

Security Advisory

Angular SSR Vulnerability Allows Cross-Request Data Exposure (CVE-2025-59052) 

Security Advisory: A high security flaw was discovered in Angular’s server-side rendering (SSR) functionality that could lead to cross-request data leakage due to a global race condition. This is identified as CVE-2025-59052, affects multiple versions of Angular’s @angular/platform-server, @angular/ssr and @nguniversal/common packages.

With data breaches at highest, Organizations using vulnerable Angular versions should update immediately or implement recommended workarounds to avoid potential data breaches.

Severity High 
CVSS Score 7.1 
CVEs CVE-2025-59052 
POC Available No 
Actively Exploited No 
Exploited in Wild No 
Advisory Version 1.0 

Overview 

Angular is a popular open-source web application framework developed by Google, used to build dynamic, single-page applications (SPAs) and server-rendered apps using HTML, TypeScript and JavaScript.

When multiple SSR requests are processed concurrently, sensitive state information may be inadvertently shared, potentially exposing user tokens or private data across unrelated sessions. The Angular has released patches across all active branches and urges developers to update immediately. 

Vulnerability Name CVE ID Product Affected Severity Fixed Version 
​ Race condition vulnerability  CVE-2025-59052 Angular platform-server, ssr  High  v18.2.14, v19.2.15/16, v20.3.0, v21.0.0-next.3 

Technical Summary 

Angular uses a dependency injection (DI) container called the platform injector during SSR to hold request-specific data. This container was implemented as a global module-scoped variable, introducing a race condition when multiple requests were processed simultaneously.

This flaw could cause data meant for one user to be sent in the response to another, potentially leaking authentication tokens, headers, or private content.

Affected APIs include bootstrapApplication,  getPlatform, destroyPlatform. These changes introduce SSR-only breaking changes, with automatic migration schematics available through the Angular CLI update process. 

CVE ID System Affected  Vulnerability Details Impact 
CVE-2025-59052 Angular SSR v16 to v21 Race condition in global DI container during SSR could leak user data across requests Cross-Request Data Leakage 

Recommendations: 

Upgrade Angular packages to the latest patched versions: 

Package Affected Versions Fixed Versions 
@angular/platform-server >=16.0.0-next.0 <18.2.14 
>=19.0.0-next.0 <19.2.15 
>=20.0.0-next.0 <20.3.0 
>=21.0.0-next.0 <21.0.0-next.3 		18.2.14 
19.2.15 
20.3.0 
21.0.0-next.3 
@angular/ssr >=17.0.0-next.0 <18.2.21 
>=19.0.0-next.0 <19.2.16 
>=20.0.0-next.0 <20.3.0 
>=21.0.0-next.0 <21.0.0-next.3 		18.2.21 
19.2.16 
20.3.0 
21.0.0-next.3 

If Immediate Upgrade is Not Possible, you can follow the recommendations below 

  • Disable SSR via server routes or build configurations 
  • Remove asynchronous behavior from custom bootstrap functions 
  • Eliminate use of getPlatform() in server-side code 
  • Ensure ngJitMode is set to false in production builds 

Conclusion: 
The Angular SSR vulnerability CVE-2025-59052 is the high severity issue with global state management during concurrent request processing, resulting in potential cross-request data exposure.

Though not yet exploited in the wild, the risk is significant for SSR-enabled Angular apps. Developers are urged to apply updates promptly or follow the provided mitigation steps to secure their applications. 

As per reports this vulnerability requires no special privileges or user interaction, making it both easy to exploit and dangerous in high-traffic applications.

References: 

Hashtags 

#Infosec #CyberSecurity #Angular #SecurityAdvisory #WebSecurity #Vulnerabilitymanagement #DevSecOps #PatchManagement #CISO #CXO #Intrucept 

Security Advisory

Microsoft Patch Tuesday has 86 Fixes, 2-0Day Vulnerabilities

September 2025 Patch Tuesday update, addressing 86 security issues in products like Microsoft Windows, Microsoft Office etc.

This includes two publicly known zero-day bugs in the Windows SMB Server and another in Newtonsoft.Json. Here are the CVE addressed for Microsoft & non-Microsoft.

Organizations are strongly encouraged to prioritize patching of systems tied to network services, virtualization and productivity tools to mitigate risks of exploitation. 

OEM Microsoft 
Severity Critical 
Date of Announcement 2025-09-09 
No. of Patches 86 
Actively Exploited No 
Exploited in Wild No 
Advisory Version 1.0 

Overview 

Here are the CVE addressed for Microsoft & non-Microsoft 

  • 81 Microsoft CVEs addressed 
  • 5 non-Microsoft CVEs addressed 

Breakdown of September 2025 Vulnerabilities 

  • 41 Elevation of Privilege (EoP) 
  • 22 Remote Code Execution (RCE) 
  • 16 Information Disclosure 
  • 4 Denial of Service (DoS) 
  • 2 Security Feature Bypass 
  • 1 Spoofing  
Vulnerability Name CVE ID Product Affected Severity CVSS Score 
Windows SMB Elevation of Privilege Vulnerability  CVE-2025-55234 Windows Server, Windows 10, 11  High 8.8 
Improper Handling of Exceptional Conditions in Newtonsoft.Json CVE-2024-21907 Microsoft SQL Server High 7.5 

Technical Summary 

September 2025 Patch Tuesday includes security updates addressing denial-of-service and privilege escalation vulnerabilities in commonly used libraries and services.

One of the publicly disclosed zero-day CVE-2024-21907 affects the popular .NET library Newtonsoft.Json, where deserialization of crafted JSON can lead to application crashes.

Additionally, CVE-2025-55234 highlights a potential for relay attacks in SMB Server configurations that lack hardening measures such as signing and Extended Protection for Authentication (EPA). Microsoft advises assessing current SMB deployments using new audit capabilities introduced in this month’s updates. 

CVE ID System Affected  Vulnerability Details Impact 
 CVE-2025-55234 Microsoft SMB Server Lack of hardening (signing & EPA) in SMB Server can allow attackers to perform relay attacks, potentially resulting in elevation of privilege. Privilege Escalation 
CVE-2024-21907 Newtonsoft.Json < 13.0.1 Improper handling of crafted input to JsonConvert.DeserializeObject may trigger a StackOverflowException, leading to a denial-of-service condition. Denial of Service 

Source: Microsoft and NVD 

In addition to the publicly disclosed zero day vulnerability, several other Critical & High severity issues were addressed 

  • CVE‑2025‑55232: Microsoft High Performance Compute Pack (HPC), deserialization of untrusted data vulnerability enabling unauthorized remote code execution over a network interface. 
  • CVE‑2025‑54918: Windows NTLM, improper authentication vulnerability that enables elevation of privilege over a network, with potential for lateral movement across enterprise systems. 
  • CVE‑2025‑54110: Windows Kernel, integer overflow vulnerability allowing local privilege escalation through exploitation of kernel memory operations. 
  • CVE‑2025‑54098: Windows Hyper-V, improper access control flaw permitting local privilege escalation from guest to host in virtualized environments. 
  • CVE‑2025‑54916: Windows NTFS, stack-based buffer overflow vulnerability enabling local attackers to execute arbitrary code with elevated privileges. 

Key Affected Products and Services 

The September 2025 security updates address critical and important vulnerabilities across a broad range of Microsoft products and services: 

  • Windows Core and Security Components 

Includes updates for Windows Kernel, NTFS, TCP/IP, Defender Firewall, LSASS, BitLocker, NTLM, Win32K, and RRAS (Routing and Remote Access Service), with several vulnerabilities rated CVSS 8.8 or higher. 

  • Microsoft Office Suite 

Patches released for Excel, Word, PowerPoint, Visio, and SharePoint addressing RCE and information disclosure issues, especially through Preview Pane vectors. 

  • Azure and Cloud Services 

Fixes affect Azure Virtual Machine Agent, Azure Arc, and High-Performance Compute Pack (HPC). 

  • Virtualization and Hyper-V 

Multiple vulnerabilities in Hyper‑V and Virtual Hard Drive components, including privilege escalation and denial-of-service risks. 

  • Developer and Management Tools 

Patches applied to PowerShell, AutoZone, Windows Management Services and Capability Access Management, addressing local privilege escalation. 

  • Communication & File Services 

Updates cover SMB, SMBv3, MSMQ and Connected Devices Platform, with critical RCE and lateral movement vectors in enterprise environments. 

  • Browsers and Web Technologies 

Microsoft Edge (Chromium-based) updates, along with republished Chrome CVEs for continued coverage of known browser threats. 

Remediation: 

Apply Patches Promptly: Install the September 2025 security updates immediately to mitigate risks. 

Conclusion: 
Microsoft’s September 2025 Patch Tuesday addresses 86 vulnerabilities, including several critical and high rated issues across Windows, Office, Hyper-V and Azure components etc.

Notably, multiple flaws affect Windows Routing and Remote Access Service (RRAS), SQL Server, and Microsoft High Performance Compute Pack (HPC), with potential for remote code execution (RCE) and privilege escalation.

Microsoft fixed an elevation of privileges flaw in SMB Server that is exploited through relay attacks.

“SMB Server might be susceptible to relay attacks depending on the configuration. An attacker who successfully exploited these vulnerabilities could perform relay attacks and make the users subject to elevation of privilege attacks,” explains Microsoft.

References: 

Blogs

Tenable & More Cyber Vendor’s Impacted by Third Party Salesforce Breach

Proofpoint, Tenable, CyberArk are other Third-Party vendors impacted by Salesforce Breach.

In an advisory released Tenable disclosed that it “was among the many organizations impacted” in the Salesloft Drift attacks, during which “an unauthorized user had access to a portion of some of our customers’ information stored in our Salesforce instance.”

Impacted data includes “subject lines and initial descriptions provided by our customers when opening a Tenable support case” as well as standard contact information such as name, business email address, phone number and location reference.

Tenable products and data stored in the vendor’s products, were not affected, the company said. CRN has reached out to Tenable for further comment.

Tenable stated that standard business contact information, such as customer names, email addresses, phone numbers and location details, was also accessed. At this point, the company stated there is no evidence that this information has been misused.

The information accessed by the unauthorized party was limited to data within Tenable’s Salesforce environment. This included:

  • Commonly available business contact information, such as customer names, business email addresses, and phone numbers.
  • Regional and location references associated with customer accounts.
  • Subject lines and initial descriptions that customers provided when opening a support case.

Third party vendor’s prime target of cyber attack increase Enterprise Cyber Risk

Targeting vendors indicate how critical it is to maintain third-party risk and be cautious while managing security risks associated with these external partners, focal point of target and critical for any organization’s data security.

The Tenable and other vendors being targeted increase the responsibility of enterprise based Third-party cyber risk associated as vendors can be targets for cyberattacks.

If their security measures are weak, your company’s data could be compromised. Ensuring vendors have strong cybersecurity protocols is essential to protecting sensitive information.

Enterprise security posture indicate how third-party security is a set of practices that can identify these risks and protect your organization from security threats associated with any third-party entity.

Risks arising from third-party vendors, contractors and business partners who have access to your data and systems is more then critical.

Three more well-known cybersecurity vendors have joined the lengthy list of companies impacted in the recent breach of a third-party Salesforce application, with Proofpoint, Tenable and CyberArk disclosing they were affected in the widespread Salesloft Drift attacks.

CyberArk, a publicly traded identity security vendor that Palo Alto Networks has a deal to acquire for $25 billion.

In similar pattern an unauthorized actor accessed Proofpoint’s Salesforce tenant through the compromised Drift integration and viewed certain information stored in our Salesforce instance,” the company said.

Attack module

The attacks involved stolen authentication tokens for Salesloft-owned workflow automation app Drift, which threat actors have used to steal data from Salesforce CRM systems. It’s unclear how threat actors obtained the tokens.

As per researchers, breach at Tenable was not an isolated attack but is linked to a wider, sophisticated campaign that security experts have been tracking. This campaign specifically exploits a vulnerability in the integration between Salesforce and Salesloft Drift, a popular sales engagement platform.

Security Advisory

Vulnerability in Spring Cloud Gateway Server WebFlux Discovered; Target of Ease by Attackers

Security Advisory: CVE-2025-41243, A critical vulnerability has been disclosed in Spring Cloud Gateway Server WebFlux. This vulnerability allows attackers to modify sensitive Spring Environment properties under specific configurations.

Severity Critical 
CVSS Score 10.0 
CVEs CVE-2025-41243 
POC Available No 
Actively Exploited No 
Exploited in Wild No 
Advisory Version 1.0 

Overview 

The vulnerability has been assigned the maximum CVSS score of 10.0. It arises when actuator endpoints are exposed without proper security controls, potentially allowing attackers to compromise application behavior. Organizations and users of affected versions are strongly urged to upgrade to the fixed releases. 

Vulnerability Name CVE ID Product Affected Severity Fixed Version 
Spring Expression Language Property Modification  CVE-2025-41243  Spring Cloud Gateway WebFlux  Critical   v4.3.1,  
v4.2.5, v4.1.11, v3.1.11  

Technical Summary 

CVE-2025-41243 is a critical vulnerability occurs when the Spring Boot actuator is included as a dependency and the gateway actuator endpoint is explicitly exposed via the “management.endpoints.web.exposure.include=gateway” configuration.

In such cases, if actuator endpoints are unsecured or exposed to public networks, an attacker could exploit them to modify Spring Environment properties at runtime. This could cause unauthorized access, configuration tampering, and potential application compromise. 

CVE ID System Affected  Vulnerability Details Impact 
CVE-2025-41243    4.3.0 – 4.3.x 4.2.0 – 4.2.x 4.1.0 – 4.1.x 4.0.0 – 4.0.x 3.1.0 – 3.1.x Older, unsupported versions   Improperly secured actuator endpoints in Spring Cloud Gateway WebFlux allow unauthorized modification of Spring Environment properties. Unauthorized access potential privilege escalation 

Remediation – 

Upgrade Immediately patch to fixed versions: 

Affected Version Range Upgrade To 
4.3.x 4.3.1 
4.2.x 4.2.5 
4.1.x and 4.0.x 4.1.11 
3.1.x 3.1.11 
Unsupported versions Migrate to a supported release 

If you are unable to upgrade right now, here are the recommendations below 

  • Remove gateway from the “management.endpoints.web.exposure.include” property or secure the actuator endpoints. 
  • Secure actuator endpoints with proper authentication and access controls. 
  • Regularly audit and harden application configuration files. 
  • Monitor application and network logs for suspicious activity or unauthorized access attempts. 
  • Implement firewall rules or reverse proxies to restrict access to sensitive endpoints. 
  • Ensure all systems follow patch management and update policies. 

Conclusion 
CVE-2025-41243 is a critical vulnerability affecting Spring Cloud Gateway WebFlux, allowing remote attackers to modify environment properties when actuator endpoints are misconfigured and exposed.

While no active exploitation has been observed in the wild, vulnerability poses a high risk to application integrity and security due to its CVSS score of 10.0 and ease of exploitation in exposed systems.

Organizations are strongly advised to upgrade to the fixed versions, secure actuator endpoints, and follow best practices to reduce attack surface and prevent future exploitation. 

References 

Security Advisory

Critical WhatsApp Zero-Day Vulnerability Allows Remote Code Execution  

Summary 

OEM WhatsApp 
Severity Medium 
CVSS Score 5.4 
CVEs CVE-2025-55177 
POC Available No 
Actively Exploited No 
Exploited in Wild No 
Advisory Version 1.0 

Overview 

A security vulnerability recently discovered in WhatsApp’s linked device feature that allows users to access WhatsApp across multiple devices, such as phones and computers.

CISA has added this flaw to its Known Exploited Vulnerabilities (KEV) Catalog, highlighting its significance. The flaw allows attackers to send crafted messages that forced WhatsApp to load malicious content from a rogue website without any user interaction. WhatsApp and Apple already patched the issue and users are urged to update their apps immediately to stay protected.

                Vulnerability Name CVE ID Product Affected Severity Fixed Version 
WhatsApp Incorrect Authorization Vulnerability  CVE-2025-55177 WhatsApp  Medium 2.25.21.73 and later. 
 
WB iOS 2.25.21.78 and later.  
WhatsApp Desktop for Mac 2.25.21.78 and later. 

Technical Summary 

The vulnerability was due to incomplete authorization of synchronization messages in WhatsApp’s linked device feature. This flaw allowed an attacker to send crafted sync messages that could trick WhatsApp into processing content from an arbitrary URL, even if the message came from an untrusted source.

This could result in WhatsApp loading and executing malicious content on the target device without any user interaction. The impact of the attack was significantly increased when combined with a separate Apple OS vulnerability (CVE-2025-43300), making it suitable for sophisticated, targeted exploitation.

CVE ID System Affected  Vulnerability Details Impact 
CVE-2025-55177 WhatsApp for iOS (v2.22.25.2 to v2.25.21.72) 
 WhatsApp Business for iOS (v2.22.25.2 to v2.25.21.77) 
 WhatsApp Desktop for Mac (v2.22.25.2 to v2.25.21.77		Incomplete authorization in the linked device sync feature allowed attackers to send crafted sync messages that caused WhatsApp to load content from an arbitrary URL without user interaction. This could be used to execute malicious code on the device. Remote code execution,.  Potential full device compromise.  

Remediation: 

Update the WhatsApp in iOS and mac devices to the latest version 

  • WhatsApp for iOS: Update to v2.25.21.73 or latest version 
  • WhatsApp Business for iOS: Update to v2.25.21.78 or latest version  
  • WhatsApp Desktop for Mac: Update to v2.25.21.78 or latest version 

Conclusion: 
The WhatsApp vulnerability highlights the growing risks of zero-click attacks, where devices can be compromised without any user interaction. This flaw has been exploited in targeted attacks and poses a serious threat to user security and privacy. It is important for all users to keep their apps and operating systems up to date and follow trusted security recommendations

References: 

Security Advisory

Chrome Update Released, Fixes RCE & Multiple Vulnerabilities

Summary 

OEM Google Chrome 
Severity High 
CVSS Score 8.8 
CVEs CVE-2025-9864, CVE-2025-9865, CVE-2025-9866, CVE-2025-9867 
POC Available No 
Actively Exploited No 
Exploited in Wild No 
Advisory Version 1.0 

Overview 

Several security vulnerabilities were recently identified in Chromium-based browsers, affecting components such as the V8 JavaScript engine, Toolbar, Extensions and Downloads. The high severity vulnerability, use-after-free issue, could allow attackers to execute arbitrary code.

Additional medium-severity bugs were found in the Toolbar, Extensions, and Downloads components. The Chrome team has started rolling out Chrome 140 to the stable channel, and users are urged to update their browsers to stay protected. 

Vulnerability Name CVE ID Product Affected Severity Fixed Version 
​Use-after-free vulnerability in V8  CVE-2025-9864 Chrome  High  v140.0.7339.80/81 
​Inappropriate implementation vulnerability in Toolbar  CVE-2025-9865 Chrome  Medium  v140.0.7339.80/81 
Inappropriate implementation vulnerability in Extensions  CVE-2025-9866 Chrome  Medium  v140.0.7339.80/81 
Inappropriate implementation vulnerability in Downloads  CVE-2025-9867 Chrome  Medium  v140.0.7339.80/81 

Technical Summary 

Multiple vulnerabilities were addressed in Google Chrome prior to version 140.0.7339.80. The most critical, CVE-2025-9864, is a use-after-free issue in the V8 JavaScript engine that allowed a remote attacker to potentially exploit heap corruption via a crafted HTML page.

Other medium-severity issues include a Toolbar vulnerability on Android that could be exploited via specific user gestures to spoof domains, a security gap in Extensions allowing attackers to bypass content security policies, and a Downloads flaw on Android that enabled UI spoofing through manipulated web pages.

These could allow attackers to misuse Chrome’s features or gain higher system privileges.  

CVE ID System Affected  Vulnerability Details Impact 
 CVE-2025-9864  Chrome v139 and prior Use-after-free in V8 engine could allow attackers to execute arbitrary code via malicious webpage  Remote Code Execution 
 CVE-2025-9865  Chrome v139 and prior Improper handling Chrome’s Toolbar component could allow attackers misuse browser functions or gain privilege access  Domain Spoofing / UI Spoofing
 CVE-2025-9866  Chrome v139 and prior Inappropriate implementation in Chrome’s Extensions system, could allow attackers misuse or bypass content security policy  Content Security Policy Bypass
 CVE-2025-9867  Chrome v139 and prior Improper validation in Chrome’s Downloads could allow attackers to perform UI spoofing via crafted HTML   UI Spoofing 

Remediation: 

References: 

  • https://gbhackers.com/chrome-140-release/

Security Advisory

Fake Govt & Banking Apps Spreading Android Droppers Evolved as Malware

Security Advisory:  

Cybersecurity researchers have discovered a major shift in how Android malware is being delivered. Dropper apps, which were earlier used mainly to distribute banking trojans.

The Malware’s being used to deliver simpler threats like SMS stealers and basic spyware as official government or banking apps, primarily targeting users in India, Southeast Asia, and some parts of Europe. 

ThreatFabric researchers warn of a shift in Android malware: dropper apps now deliver not just banking trojans, but also SMS stealers and spyware, mainly in Asia.

Vulnerability Details 

The recent surge in Android dropper apps introduces a critical security vulnerability affecting mobile users globally. These droppers are impersonating as banking apps, government services, or trading platforms,, bypass Google Play

Pilot Program by initially requesting minimal permissions to avoid detection, making them appear as legitimate applications.

Once installed, they fetch malicious payloads like spyware, SMS stealers, cryptocurrency miners, and banking trojans from remote servers. Attackers also exploit malvertising campaigns on social media to spread fake apps widely. This evolving tactic enables cybercriminals to switch payloads dynamically, making traditional security measures less effective and increasing the risk of data theft and device compromise. 

Source: cybersecuritynews 

Attack Flow 

Step Description 
1. Craft Attackers create malicious dropper apps disguised as government schemes, banking apps, or trading tools. These apps are designed to look harmless and request only minimal permissions initially. 
2. Send The droppers are distributed through third-party APK sites, malicious ads (e.g., Facebook), or fake update prompts, bypassing initial detection. 
3. Trigger The victim downloads and installs the dropper app, often believing it’s legitimate due to its official-looking design and branding. 
4. Execution When the user clicks “Update” or interacts with the app, the dropper fetches the real malicious payload (spyware, SMS stealer, or banking trojan) from a remote server. 
5. Exploit The installed malware requests high-risk permissions, such as SMS access or notification access, allowing attackers to steal data, track activities, or control the device remotely. 

Proof-of-Concept 

Once the user interacts, the dropper initiates an HTTPS request to a remote server 

Source: cybersecurity news 

Why It’s Effective 

Dynamic Payload Delivery – Attackers hide the real malicious file inside a harmless-looking dropper app. The payload is only downloaded after user interaction, making it harder to detect. 

Permission Evasion – Droppers initially request minimal or safe permissions and only ask for high-risk permissions (like SMS or accessibility access) after installation, bypassing Google Play Protest’sProtects initial scans. 

Fake Update Screens – Many droppers display legitimate looking “Update Required” prompts to trick users into downloading malware, increasing their success rate. 

Recommendations: 

Download Apps Safely  

  • Install apps only from trusted sources like Google Play Store, Apple store etc. 
  • Avoid third-party APKs, unknown links, or apps promoted through social media ads. 

Check Permissions Carefully  

  • Do not grant unnecessary permissions like SMS, notifications, or accessibility dependent on the app services. 
  • Always review requested permissions before installing or updating an app. 

Keep Devices Secure  

  • Enable Google Play Protect and keep your Android security patches up to date. 
  • Use a reliable mobile security solution for real-time malware detection. 

Stay Alert and Aware  

  • Be aware of fake update prompts; apps, and malicious sites. 
  • Stay updated on the latest tactics used by Android malware 

Conclusion: 

  • Android droppers are evolving fast, making them more flexible and harder to detect, increasing risks for both individuals and organizations.
  • Droppers started as tools for advanced banking malware, but now they’re used to install all kinds of harmful apps and sneak past local security.  
  • It is always recommended to stay vigilant, keep your phone and software updated from the original source  and avoid unverified apps installation to minimize the risk of infection. 

References: 

Security Advisory

Threat Actors Exploiting Microsoft Teams to Gain Remote Access & Transfer Malware 

Security Advisory:

A new wave of social engineering attacks is exploiting Microsoft Teams, one of the most trusted enterprise collaboration platforms as a malware delivery channel.

Threat actors are impersonating IT support staff to trick employees into installing remote access tools and running malicious PowerShell scripts, enabling full compromise of victim environments. 

This campaign represents an evolution beyond traditional phishing, weaponizing corporate communication channels that employees inherently trust. Once access is established, attackers deploy multifunctional malware loaders such as DarkGate and Matanbuchus, with capabilities for credential theft, persistence, lateral movement and ransomware deployment. 

Technical Summary 

Security researchers have observed financially motivated threat groups abusing Microsoft Teams chats and calls to impersonate IT administrators. Attackers create malicious or compromised Teams accounts often using convincing display names like “IT SUPPORT ” or “Help Desk Specialist” as looking like legitimate and verified account to initiate direct conversations with employees. The social engineering process typically follows this chain 

Attack Process                                                                             Source: permiso.io 

It included the malware features 

  • Credential theft via GUI-based Windows prompts. 
  • Persistence using Scheduled Tasks (e.g. Google LLC Updater) or Registry Run keys. 
  • Encrypted C2 communications with hardcoded AES keys & IVs. 
  • Process protection via RtlSetProcessIsCritical, making malware harder to remove. 
  • Harvesting system info for reconnaissance and follow-on payloads. 

The campaigns have been linked to threat actor groups such as Water Gamayun (aka EncryptHub), known for blending social engineering, custom malware and ransomware operations. 

Element Detail 
Initial Access Direct messages/calls via Microsoft Teams impersonating IT staff 
Social Engineering Fake IT accounts with display names like “IT SUPPORT ✅” and onmicrosoft.com domains 
Malicious Tools QuickAssist, AnyDesk, PowerShell-based loaders (DarkGate, Matanbuchus) 
Persistence Scheduled Tasks (Google LLC Updater), Registry autoruns 
Payload Features Credential theft, system profiling, encrypted C2, remote execution 
Target Enterprise employees, IT professionals, developers 
Objective Credential theft, long-term access, ransomware deployment 

IOCs 

Organizations are urged to block the following indicators immediately: 

Indicator Type 
https://audiorealteak[.]com/payload/build.ps1 URL 
https://cjhsbam[.]com/payload/runner.ps1 URL 
104.21.40[.]219 IPv4 
193.5.65[.]199 IPv4 
Mozilla/5.0 (Windows NT; Windows NT 10.0; en-US) AppleWebKit/534.6 (KHTML, like Gecko) Chrome/7.0.500.0 Safari/534.6 UA 
&9*zS7LY%ZN1thfI Initialization Vector 
123456789012345678901234r0hollah Encryption Key 
62088a7b-ae9f-2333-77a-6e9c921cb48e Mutex 
Help Desk Specialist  User Display Name 
IT SUPPORT User Display Name 
Marco DaSilva IT Support  User Display Name 
IT SUPPORT  User Display Name 
Help Desk User Display Name 
@cybersecurityadm.onmicrosoft.com User Principal Name 
@updateteamis.onmicrosoft.com User Principal Name 
@supportbotit.onmicrosoft.com User Principal Name 
@replysupport.onmicrosoft.com User Principal Name 
@administratoritdep.onmicrosoft.com User Principal Name 
@luxadmln.onmicrosoft.com User Principal Name 
@firewalloverview.onmicrosoft.com User Principal Name 

Remediation: 

  1. Strengthen Microsoft Teams Security 
  • Restrict external tenants and enforce strict access control on Teams. 
  • Implement anomaly detection for suspicious Teams account activity. 
  • Block installation of unauthorized remote access tools (QuickAssist, AnyDesk). 

2. Enhance Endpoint & Network Defenses 

  • Monitor PowerShell execution with EDR/XDR solutions. 
  • Detect persistence artifacts (scheduled tasks, autorun keys, rundll32 activity). 
  • Block known IoCs at DNS/firewall levels. 

 3. Employee Awareness & MFA Security 

  • Train employees to verify IT support requests through independent channels. 
  • Warn staff against installing software via unsolicited Teams messages. 
  • Enforce multi-factor authentication (MFA) for all accounts. 

Conclusion: 
By shifting malware delivery into Microsoft Teams, attackers are exploiting a platform that enterprises inherently trust. The blending of social engineering with technical abuse of PowerShell and remote access tools makes this campaign particularly dangerous, enabling attackers to infiltrate organizations without relying on traditional email phishing. 

Organizations must treat collaboration platforms as high-value attack surfaces not just communication tools. Strengthening monitoring, restricting external interactions and training employees to validate IT requests are critical to defending against this evolving threat.  

References: 

Security Advisory

Critical Chrome Use-After-Free Vulnerability in ANGLE Graphics Library 

Security Advisory: A critical use-after-free vulnerability has been identified in the ANGLE graphics library used by Google Chrome which enables applications designed for OpenGL ES (OpenGL used on mobile and embedded devices) or WebGL (a web-based 3D graphics API) to run on platforms that primarily use other graphics APIs, such as DirectX on Windows or Vulkan on Android.

OEM Google Chrome 
Severity High 
CVSS Score 8.8 
CVEs CVE-2025-9478 
POC Available No 
Actively Exploited No 
Exploited in Wild No 
Advisory Version 1.0 

Overview 

This vulnerability could allow attackers to take control of your device simply by visiting a harmful website using HTML or WebGL which is just opening the wrong page could let hackers run their own code on our system. 

Google has already fixed this problem in the latest Chrome update (version 139.0.7258.154/.155 for Windows & macOS and 139.0.7258.154 for Linux). Users and administrators are strongly advised to apply the latest updates immediately. 

Vulnerability Name CVE ID Product Affected Severity Fixed Version 
​ Use-After-Free Vulnerability in ANGLE  CVE-2025- 9478 Google Chrome  High  v139.0.7258.154/.155 (Win/Mac), v139.0.7258.154 (Linux) 

Technical Summary 

This security issue happens when Chrome accidentally reuses computer memory that should no longer be in use. This is exploited by the attacker, if we visit a harmful website designed by cybercriminals, it can secretly run special graphics commands (through WebGL or Canvas). This could corrupt our system’s memory, crash our browser, or allow hackers to run their own code on our device remotely. 

CVE ID System Affected  Vulnerability Details Impact 
 CVE-2025- 9478 Chrome < 139.0.7258.154 A Vulnerability in Chrome’s graphics engine lets attackers reuse cleared memory through specially designed HTML/WebGL input. Remote code execution,  
Data theft  
 

Remediation: 

  • Update to Chrome latest versions 139.0.7258.154/.155 on Windows/macOS or 139.0.7258.154 on Linux or the later one. 

Here are some recommendations below 

  • Keep monitoring the logs for suspicious activities unusual WebGL or graphics API call. 
  • Conduct user awareness training to educate users about the risks of malicious websites, avoiding unknown links. 

Conclusion: 
This is a high-severity Chrome vulnerability that could allow remote code execution via malicious WebGL content. Although not yet exploited in the wild but immediate patching is essential. Users should update Chrome, monitor unusual graphics activity and stay informed about malicious website risks to ensure strong browser security. 

References: 

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