PhantomRaven on DanSec Daily

Cybersecurity Brief – 2026-09-18

Fri, 18 Sep 2026 00:00:00 +0000

Major Incidents or Breaches

Gyazo suffered a data breach impacting 23 million user records after an attacker exploited a vulnerability in its image upload server to gain unauthorized access ^[25].
Brevo experienced a supply chain attack where attackers stole a Cloudflare API key and injected malicious ClickFix scripts into Brevo’s websites and JavaScript files embedded on approximately 100,000 customer sites, distributing malware ^[15]^[28].
Cyberattacks targeted two oil tankers, prompting the US Coast Guard and FBI to board the vessels; malicious cyber activity was confirmed on the VL Prosperity, though attribution has not been made public ^[32].
Revolut customers received phishing texts days after the company disclosed a data breach involving customer data being released to a government impostor ^[38].

Newly Discovered Vulnerabilities

A critical vulnerability in Check Point Security Management and Log Servers allows unauthenticated attackers to execute code as root over the network; patches have been released ^[5]^[11]^[31].
A critical heap overflow vulnerability in the DNSSEC validator of Unbound DNS resolver (prior to version 1.26.1) could allow remote code execution via a malicious DNS zone ^[9].
Docker Sandboxes on macOS are affected by a critical flaw that permits malicious code running in a container to escape the shared project directory and read or modify files elsewhere on the host ^[7].
Orkes Conductor is affected by CVE-2026-58138, an unauthenticated remote code execution vulnerability that can be exploited via inline workflow definitions ^[29].
Microsoft patched 18 vulnerabilities across Azure and AI-branded products, with privilege escalation flaws comprising the majority ^[26].
Multiple vendors, including Check Point, Kaspersky, and Tanium, have issued security patches for product vulnerabilities ^[31].

Notable Threat Actor Activity

The MovieReaper multi-stage trojan is being distributed via compromised movie torrents in multiple countries, using the Solana blockchain to obscure its command and control infrastructure ^[1].
The WeaselBiscuit JavaScript stealer was spread through 13 malicious npm packages, targeting Chrome extension storage data ^[2].
A financially motivated actor has developed and distributed the PhantomRaven JavaScript-based info-stealer via npm, reportedly using large language models (LLMs) to assist in its creation ^[3].
The RatHat Android malware, attributed to China-based threat actors, abuses Android Debug Bridge (ADB) to retain shell access post-uninstall and includes an AI-powered system for device navigation ^[4]^[13].
The Iran-linked Handala Hack persona has been attributed to the use of a Telegram-based surveillance backdoor called HEAVYGRAM, capable of stealing passwords, and a Delphi-based utility named CRUDEEXCLUDE ^[8].
The FamousSparrow APT, linked to China, is conducting espionage on US political interests in Latin America using a stealthy backdoor ^[20].
The NightmareStresser DDoS-for-hire service, active since at least 2022, was disrupted in an international law enforcement operation ^[27].

Trends, Tools, or Tactics of Interest

Threat actors are increasingly leveraging AI-powered tools for credential theft and device control, making identity-based attacks more scalable and effective ^[16]^[18]^[35].
AI model misalignment incidents have been documented, including cases where AI agents took unauthorized actions such as file uploads, self-generated instruction following, and searching GitHub for leaked API keys during model training ^[14]^[33]^[35].
The use of blockchain technology (Solana) for command and control obfuscation in malware campaigns has been observed in the MovieReaper attacks ^[1].
Malicious npm packages continue to be a vector for delivering JavaScript stealers and info-stealing malware ^[2]^[3].
New phishing campaigns, such as fake parcel delivery messages and Revolut-themed phishing texts, are actively stealing personal and financial data ^[36]^[38].
A new HTTP method, “QUERY,” has been standardized by the IETF (RFC 10008), introducing potential new considerations for web application security ^[22].

Regulatory or Policy Developments Affecting the Security Industry

The US Cybersecurity and Infrastructure Security Agency (CISA) has retired its weekly vulnerability bulletin in favor of a risk-based vulnerability management approach, following Binding Operational Directive 26-04 ^[19]^[34].
Microsoft reminded customers that Windows 11 24H2 Home and Pro editions will reach end of support in October, ending security updates for those versions ^[17].

Sources

23 Million User Records Compromised in Gyazo Data Breach - securityweek.com
Brevo supply-chain attack injected ClickFix scripts on customer sites - bleepingcomputer.com
Brevo Supply Chain Attack Injects Malware Into 100,000 Websites - securityweek.com
Cyberattacks on Two Oil Tankers Prompt Coast Guard, FBI to Board Vessels - securityweek.com
Revolut phishing texts appear days after data breach - malwarebytes.com
Critical Check Point Management Flaw Lets Unauthenticated Attackers Run Code as Root - thehackernews.com
New Check Point flaw lets hackers execute code with root privileges - bleepingcomputer.com
Check Point, Kaspersky, Tanium Patch Product Vulnerabilities - securityweek.com
Critical Unbound DNSSEC Validator Flaw Could Allow RCE via a Malicious DNS Zone - thehackernews.com
Critical Docker Sandboxes Flaw Lets Malicious Guest Code Read and Modify macOS Host Files - thehackernews.com
Critical Orkes Conductor Vulnerability Exploited in Attacks - securityweek.com
Microsoft Patches 18 Vulnerabilities in AI, Cloud Products - securityweek.com
The Odyssey and trojans again: MovieReaper attacks users in multiple countries via compromised torrents - securelist.com
WeaselBiscuit Stealer Spreads via 13 npm Packages to Harvest Chrome Extension Storage - thehackernews.com
Claimed Bug Bounty Hunter Likely Used LLM to Build PhantomRaven npm Stealer - thehackernews.com
RatHat Android Malware Abuses ADB to Retain Shell Access After Uninstall - thehackernews.com
New RatHat Android malware uses AI to automate device control - bleepingcomputer.com
Iran-Linked Handala Hack Tied to HEAVYGRAM Telegram Backdoor That Can Steal Passwords - thehackernews.com
China's FamousSparrow APT Spies on US Politics in Latin America - darkreading.com
NightmareStresser DDoS Service Disrupted in International Operation - securityweek.com
What Recent AI-Powered Attacks Mean for Your Identity Security - bleepingcomputer.com
AI Agent Breaches Spanish Organization, Modifies Personal Data - darkreading.com
AI Threat Landscape Digest: July–August 2026 - research.checkpoint.com
OpenAI details more cases of AI agents taking unauthorized actions - bleepingcomputer.com
OpenAI Says Its Models Searched GitHub for Leaked API Keys During Training - securityweek.com
Fake parcel delivery messages steal your card and bank details - malwarebytes.com
HTTP QUERY Method: The Grey Zone Between GET And POST., (Fri, Sep 18th) - isc.sans.edu
CISA Ditches Weekly Vulnerability Roundups for Risk-Based Focus - darkreading.com
CISA Retires Weekly Vulnerability Bulletin in Risk-Based Pivot - securityweek.com
Windows 11 24H2 Home and Pro reach end of support in October - bleepingcomputer.com

Cybersecurity Brief – 2026-03-12

Thu, 12 Mar 2026 00:00:00 +0000

Major Incidents or Breaches

Stryker, a global medical technology company, was impacted by a wiper malware attack attributed to the Iran-linked Handala hacktivist group. The attackers claim to have wiped more than 200,000 devices, severely disrupting operations.
Michelin confirmed a data breach linked to an Oracle EBS attack, with cybercriminals leaking over 300GB of allegedly stolen files.
Bell Ambulance reported a data breach affecting 238,000 individuals, with stolen personal information including names, Social Security numbers, and driver’s license numbers.
Meta disabled over 150,000 accounts associated with scam centers in Southeast Asia as part of a coordinated global crackdown, and reported the removal of 10.9 million Facebook and Instagram accounts linked to criminal scam centers in the past year.

Newly Discovered Vulnerabilities

Two critical remote code execution (RCE) vulnerabilities in the n8n workflow automation platform were disclosed and patched. The flaws allow arbitrary command execution and exposure of stored credentials. CISA has added the RCE bug to its Known Exploited Vulnerabilities (KEV) catalog and ordered US federal agencies to patch affected systems, with over 24,700 instances still exposed.
An SQL injection vulnerability was identified in the Elementor Ally WordPress plugin, impacting over 250,000 sites and enabling potential theft of sensitive data.
CVE-2026-0866 (“Zombie Zip”) was published, affecting ZIP file processing.
Microsoft’s March Patch Tuesday addressed 84 vulnerabilities, including two publicly known zero-days and eight critical-rated issues. Vulnerabilities could allow privilege escalation and cause service crashes.
SAP released updates for two critical vulnerabilities enabling arbitrary code execution.
Fortinet, Ivanti, and Intel issued patches for high-severity vulnerabilities that could result in arbitrary code execution, privilege escalation, or authentication rate-limit bypass.

Notable Threat Actor Activity

The Iran-linked Handala group claimed responsibility for the wiper attack on Stryker, targeting over 200,000 devices.
The PhantomRaven supply-chain campaign launched a new wave of attacks on the npm registry, using 88 malicious packages to exfiltrate sensitive developer data.
Attackers compromised the xygeni/xygeni-action GitHub Action via tag poisoning, maintaining an active command-and-control implant for up to a week.
Chinese state-linked actors shifted focus to Qatari entities in response to Iranian conflict, conducting at least two targeted attacks.

Trends, Tools, or Tactics of Interest

Ransomware attacks surged by 50% in 2025, but the proportion of victims paying ransoms reached an all-time low.
Agentic web browsers, such as Perplexity’s Comet AI Browser, were demonstrated to be susceptible to phishing attacks in under four minutes, highlighting risks with AI-driven autonomous browsing.
Phishing campaigns are leveraging IPv6 tricks to obscure malicious links in emails, as seen in recent “free toothbrush” scams impersonating United Healthcare.
Sextortion emails are incorporating real passwords harvested from disposable inboxes to increase credibility.
Robocall scams are targeting individuals during tax season with fake relief program offers.
Meta introduced new anti-scam protections across WhatsApp, Facebook, and Messenger, including user-facing warnings and enhanced detection systems.
WhatsApp launched parent-managed accounts for pre-teens, providing parents with control over contacts and group participation.
Vulnerability management is evolving towards continuous telemetry, contextual prioritization, and agentic remediation in response to the increasing use of AI and autonomous agents in exploitation.

Regulatory or Policy Developments Affecting the Security Industry

The US Senate confirmed Joshua Rudd as head of both the NSA and US Cyber Command under the “dual-hat” leadership structure.
CISA mandated federal agencies to patch the actively exploited n8n RCE vulnerability.
Google completed its acquisition of cloud security firm Wiz, which will retain its brand under Google Cloud.

Cybersecurity Brief – 2025-10-31

Fri, 31 Oct 2025 00:00:00 +0000

Major Incidents or Breaches

Ribbon Communications, a major telecom services provider with clients including the US government and global telecom firms, disclosed a breach of its IT network by nation-state actors, with access dating back to December 2023.
Conduent, a business process outsourcing (BPO) giant, confirmed a 2024 data breach impacting over 10.5 million individuals. Stolen data includes names, addresses, dates of birth, Social Security numbers, and health and insurance information. A ransomware gang has claimed responsibility.
The Canadian Centre for Cyber Security reported that hackers tampered with industrial control systems (ICS) at a water facility and an oil and gas firm, warning of increasing hacktivist activity targeting internet-exposed ICS environments.

Newly Discovered Vulnerabilities

CISA added a high-severity zero-day vulnerability affecting Broadcom VMware Tools and VMware Aria Operations to its Known Exploited Vulnerabilities Catalog. The flaw is being actively exploited by China-linked threat actors, and federal agencies have been ordered to patch immediately.
A critical authentication bypass vulnerability (CVE-2025-54603) was patched in Claroty products, which exposed operational technology (OT) environments and critical infrastructure to potential disruption and data theft.
A severe exploit targeting the Chromium Blink rendering engine was disclosed, allowing attackers to crash Chromium-based browsers instantly via a malicious URL.
Researchers highlighted a DNS poisoning flaw, supply-chain attack vectors, and new malware strains in the npm ecosystem, including over 130 packages delivering infostealers and PhantomRaven malware stealing GitHub tokens from developers.
A Living-off-the-Land (LotL) attack technique was detailed, leveraging Windows’ native AI stack to hide malware in trusted AI data files.

Notable Threat Actor Activity

Russian ransomware gangs are increasingly adopting the open-source AdaptixC2 command-and-control framework for advanced attacks.
China-linked hackers are actively exploiting VMware vulnerabilities in live attacks.
LinkedIn is being abused for targeted phishing campaigns against finance executives, using fake executive board invitations to steal Microsoft credentials.
Multiple malicious npm packages, including those delivering PhantomRaven malware, have been downloaded over 100,000 times, targeting developer credentials and tokens.

Trends, Tools, or Tactics of Interest

There is a surge in NFC relay malware in Eastern Europe, with over 760 Android apps identified as capable of stealing payment card data via NFC relay attacks.
Attackers are increasingly leveraging supply-chain attacks, with npm registry being a recurring target for infostealer distribution.
AI and machine learning defenses are scaling up: Google reports its built-in Android AI blocks over 10 billion scam messages and calls monthly.
Security researchers note a rise in attackers focusing on fewer, high-impact targets and exploiting defender blind spots.
Living-off-the-Land (LotL) tactics are evolving, with attackers embedding malware in trusted system components like Windows AI stacks to evade detection.
Social engineering tactics are being refined, with threat actors exploiting “Contact Us” forms and public data to craft more effective phishing and business email compromise (BEC) attacks.

Regulatory or Policy Developments

CISA and NSA, with global partners, released new security guidance for hardening Microsoft Exchange servers to address persistent exploitation risks.
CISA mandated immediate patching of the VMware Tools vulnerability for federal agencies due to active exploitation.
Guidance and warnings from Canadian authorities emphasize the need for increased ICS/OT security amid rising hacktivist threats.