Storm-0249 on DanSec Daily

Cybersecurity Brief – 2025-12-11

Thu, 11 Dec 2025 00:00:00 +0000

Major Incidents or Breaches

Threat actors are actively exploiting CVE-2025-55182, with observed attacks targeting honeypots and deploying malware.
Multiple threat groups are exploiting WinRAR vulnerability CVE-2025-6218, which has been added to CISA’s Known Exploited Vulnerabilities (KEV) catalog.
Gladinet’s CentreStack and Triofox products are under active attack due to hard-coded cryptographic keys, resulting in unauthorized access and code execution in at least nine organizations.
React2Shell vulnerability in React Server Components is being heavily exploited to deliver cryptocurrency miners and other malware across multiple sectors.
Over 10,000 Docker Hub container images have been found leaking sensitive credentials, including production system access, CI/CD database keys, and LLM model keys.
A new AMOS infostealer malware campaign is using Google search ads to lure users into fake ChatGPT and Grok guides, resulting in macOS infections.
A new Android malware, DroidLock, is locking devices for ransom, erasing data, and accessing sensitive information such as messages, contacts, and audio data.
The GhostFrame phishing kit is enabling widespread phishing attacks using dynamic subdomains and hidden iframes to evade detection.
A Ukrainian national has been charged and extradited to the US for assisting Russian hacktivist groups in attacks on critical infrastructure, including water, election, and nuclear systems.
Pro-Russian hacktivists are targeting US critical infrastructure, primarily by compromising VNC connections in operational technology (OT) systems, with potential for increased destructiveness.

Newly Discovered Vulnerabilities

PCIe 5.0+ systems are affected by three vulnerabilities in the Integrity and Data Encryption (IDE) protocol, exposing Intel and AMD processors to information disclosure, privilege escalation, and DoS via local attacks.
The .NET “SOAPwn” flaw allows remote code execution and arbitrary file writes via rogue WSDL files in enterprise applications.
Google patched a Gemini Enterprise zero-click vulnerability (“GeminiJack”) that could have exposed corporate data via crafted emails, calendar invites, or documents.
Fortinet released patches for two critical authentication bypass vulnerabilities impacting FortiOS, FortiWeb, FortiProxy, and FortiSwitchManager with FortiCloud SSO enabled.
Ivanti Endpoint Manager (EPM) update addresses a critical XSS vulnerability enabling remote code execution with admin privileges.
SAP’s December 2025 updates fix critical vulnerabilities in Solution Manager, Commerce Cloud, and jConnect SDK, which could lead to code injection and remote code execution.
Siemens, Rockwell, and Schneider have issued patches for multiple vulnerabilities across their industrial control system (ICS) products.
Microsoft issued fixes for 56 vulnerabilities, including three zero-days, one of which is under active exploitation, and introduced a PowerShell warning for unsafe code execution.
A possible new exploit variant for Kubernetes OS command injection vulnerability CVE-2024-9042 has been identified.

Notable Threat Actor Activity

Storm-0249, an initial access broker, is abusing endpoint detection and response (EDR) platforms and Windows utilities in stealthy attacks.
The Silver Fox APT, associated with ValleyRAT malware, continues to evolve, utilizing kernel rootkits and advanced builder techniques.
The Spiderman phishing kit is targeting customers of dozens of European banks and cryptocurrency holders with highly convincing cloned sites.
The AMOS infostealer campaign leverages SEO poisoning and legitimate AI domains for malware delivery to macOS systems.
US authorities indicted Victoria Dubranova for supporting Russia-backed CARR and NoName hacktivist groups in attacks on critical infrastructure.
Two individuals linked to China’s Salt Typhoon hacker group reportedly received training via a Cisco Academy prior to targeting Cisco devices in espionage campaigns.

Trends, Tools, or Tactics of Interest

Phishing attacks have surged 400% year-over-year, with a focus on corporate accounts.
Social engineering campaigns are exploiting Microsoft Teams’ “Chat with Anyone” feature to conduct phishing attacks via external DMs.
Attackers are increasingly exploiting cloud misconfigurations across AWS, AI models, and Kubernetes, bypassing standard security tools.
Supply-chain attacks in manufacturing environments are leveraging compromised credentials, malicious NPM packages, and development tool exploits.
Microsoft Teams is developing a feature to warn IT administrators about suspicious traffic with external domains.
The GhostFrame phishing kit is enabling large-scale, evasive phishing campaigns using dynamic infrastructure.
The Spiderman phishing kit demonstrates sophistication in targeting European financial institutions with pixel-perfect phishing sites.

Regulatory or Policy Developments Affecting the Security Industry

Israeli cybersecurity sector investment reached a record $4.4 billion, reflecting over 500% growth in the past decade.
CISA added the WinRAR CVE-2025-6218 vulnerability to its KEV catalog, mandating remediation for US federal agencies.

Cybersecurity Brief – 2025-12-10

Wed, 10 Dec 2025 00:00:00 +0000

Major Incidents or Breaches

Spanish authorities arrested a 19-year-old in Barcelona for allegedly stealing and attempting to sell 64 million personal data records obtained from breaches at nine companies.
Canadian organizations have been the primary target in a campaign by threat cluster STAC6565, with almost 40 incidents investigated. The Gold Blade group has been observed deploying QWCrypt ransomware in these attacks.
Japanese manufacturers, retailers, and government entities continue to experience prolonged recovery periods following ransomware attacks, highlighting the long-term operational impact of such incidents.
Microsoft Copilot experienced an outage affecting users in Europe, with investigation and mitigation ongoing.

Newly Discovered Vulnerabilities

Microsoft’s December 2025 Patch Tuesday addressed 57 vulnerabilities, including three zero-days (one actively exploited, two publicly disclosed) affecting Windows and supported software.
Adobe released patches for nearly 140 vulnerabilities, including 117 in Experience Manager (116 XSS bugs).
SAP issued patches for 14 vulnerabilities across multiple products, including three critical-severity flaws.
Fortinet released updates for two critical authentication bypass vulnerabilities affecting FortiOS, FortiWeb, FortiProxy, and FortiSwitchManager, and warned of critical SSO login flaws in FortiCloud that could allow authentication bypass.
Ivanti disclosed and patched a critical remote code execution vulnerability in Endpoint Manager.
Google patched a critical “no-click” vulnerability in Gemini Enterprise that allowed attackers to exfiltrate sensitive data via malicious document instructions.
Microsoft added PowerShell warnings for scripts using Invoke-WebRequest to help prevent risky code execution.
Google introduced new layered defenses in Chrome to block indirect prompt injection threats following the addition of agentic AI capabilities.
Researchers identified malicious extensions in Microsoft Visual Studio Code Marketplace and malicious packages in Go, npm, and Rust ecosystems, designed to steal developer data.

Notable Threat Actor Activity

North Korea-linked actors exploited the React2Shell (CVE-2025-55182) vulnerability in React Server Components to deploy new EtherRAT malware, which implements multiple Linux persistence mechanisms and uses Ethereum smart contracts for command and control.
Four distinct threat clusters are leveraging the CastleLoader malware loader, indicating it is being offered as a service for broader cybercriminal use.
Storm-0249, previously known as an initial access broker, has escalated to direct ransomware operations using advanced techniques such as domain spoofing, DLL side-loading, fileless PowerShell, and abusing endpoint detection and response (EDR) solutions for stealthy malware execution.
A phishing campaign leveraging the Evilginx open-source phishing framework is targeting at least 18 U.S. universities, aiming to bypass MFA and steal credentials.
Multi-stage phishing attacks have been observed evading Microsoft 365 security controls.
Kaspersky researchers report that Telegram’s crackdown on illicit channels is pushing cybercriminal activity to other platforms.
Shanya, a “packer-as-a-service,” is being used to obfuscate ransomware payloads and disable EDR, supporting ransomware operators in evading detection.

Trends, Tools, or Tactics of Interest

Increased abuse of EDR and trusted Windows utilities by threat actors for stealthy malware deployment and persistence.
Growing adoption of malware loaders and packer-as-a-service offerings (e.g., CastleLoader, Shanya) to facilitate ransomware and malware campaigns.
Surge in malicious packages and extensions targeting developer environments (VS Code, Go, npm, Rust) to steal sensitive data and credentials.
Attackers are leveraging deepfakes, AI-generated resumes, and social engineering to impersonate job applicants and infiltrate organizations.
Prompt injection vulnerabilities in AI-powered tools remain a persistent and difficult-to-mitigate risk, as highlighted by the UK’s NCSC.
Zero Trust adoption is hindered by lack of interoperability among security tools, with 88% of organizations experiencing challenges in sharing security signals.
Ongoing migration of cybercriminal communities away from Telegram due to increased enforcement and platform blocks.

Regulatory or Policy Developments Affecting the Security Industry

The UK government imposed sanctions on Russian and Chinese firms suspected of conducting malign information warfare and hybrid threats targeting critical infrastructure and democratic processes.
The EU fined X (formerly Twitter) $140 million for verification rules that facilitate impostor scams by allowing anyone to purchase a verified checkmark.
CISA, FBI, and international partners issued a joint advisory urging immediate action to defend critical infrastructure from pro-Russia hacktivist threats.
The US announced a $10 million bounty for information on Iranian hackers associated with Emennet Pasargad.
Microsoft announced new operating CISOs as part of a strategic shift toward AI-driven cyber defense and enhanced operational oversight.