AMOS on DanSec Daily

Cybersecurity Brief – 2026-08-02

Sun, 02 Aug 2026 00:00:00 +0000

Major Incidents or Breaches

An attacker exploited a firmware flaw in Coldcard hardware wallets to drain 1,196 Bitcoin addresses in 41 minutes, stealing approximately $70.2 million in Bitcoin on July 30 ^[1].
Attackers compromised a JavaScript file served by Adform, enabling browser-side rewriting of cryptocurrency wallet addresses across customer sites. Adform detected and responded to the incident ^[2].
Seven US states’ water systems were targeted by cyberattacks likely linked to Iranian threat actors ^[4].

Newly Discovered Vulnerabilities

A critical vulnerability in Ruby on Rails’ Active Storage framework allows unauthenticated attackers to read arbitrary files and potentially escalate to remote code execution. Patches have been released to address the issue ^[3]^[8].

Notable Threat Actor Activity

Iranian threat actors are suspected to be behind coordinated cyberattacks against water systems in seven US states ^[4].

Trends, Tools, or Tactics of Interest

Attackers are leveraging supply chain vectors by poisoning third-party scripts, as seen in the Adform incident, to conduct browser-side cryptocurrency theft ^[2].
The Atomic macOS Stealer (AMOS) continues to infect macOS systems, indicating ongoing targeting of Apple users by information-stealing malware ^[6].

Regulatory or Policy Developments Affecting the Security Industry

Ongoing legal ambiguity surrounds liability and enforcement in cases where AI models from major labs like OpenAI and Anthropic are used to hack other companies, raising new questions about regulatory frameworks for AI-driven cyberattacks ^[5].

Sources

Coldcard Hardware Wallet Flaw Linked to $70 Million Bitcoin Theft in 41 Minutes - thehackernews.com
Hackers Poison Adform Script to Swap Crypto Wallet Addresses Across Customer Sites - thehackernews.com
7 States’ Water Systems Hit by Cyberattacks Likely Tied to Iran - wired.com
Rails patches critical Active Storage flaw with RCE potential - bleepingcomputer.com
Ruby on Rails Patches Critical Vulnerability - securityweek.com
Atomic MacOS (AMOS) stealer infection, (Sun, Aug 2nd) - isc.sans.edu
The OpenAI and Anthropic AI Hacking Sprees Are a Messy New Legal Frontier - wired.com

Cybersecurity Brief – 2026-04-09

Thu, 09 Apr 2026 00:00:00 +0000

Major Incidents or Breaches

Bitcoin Depot Hack
- Bitcoin Depot, a major Bitcoin ATM operator, reported a breach in which attackers stole approximately $3.665 million from its crypto wallets. Attackers gained access to credentials and transferred over 50 bitcoins out of company wallets.
Massachusetts Hospital Cyberattack
- Signature Healthcare in Massachusetts experienced a cyberattack that forced ambulance diversions, cancellation of some services, and disruption of pharmacy operations.
Zendesk Ticket Theft by UNC6783
- Threat actor UNC6783 compromised business process outsourcing (BPO) providers to steal corporate Zendesk support tickets from high-value companies across multiple sectors.
Magento E-commerce Card Skimming Campaign
- Nearly 100 online stores running the Magento platform were impacted by a campaign embedding credit card-stealing code within a pixel-sized SVG image.
TeamPCP Supply Chain Attack Update
- TeamPCP supply chain campaign update reveals Cisco source code was stolen via a breach linked to the Trivy security scanner. Google GTIG tracks the group as UNC6780.

Cybersecurity Brief – 2026-02-13

Fri, 13 Feb 2026 00:00:00 +0000

Major Incidents or Breaches

Dutch telecommunications provider Odido suffered a cyberattack resulting in exposure of personal data belonging to 6.2 million customers.
Romania’s national oil pipeline operator Conpet S.A. confirmed data theft by the Qilin ransomware gang.
ApolloMD disclosed a data breach impacting 626,000 individuals, with patient information from affiliated physicians and practices stolen.
Hackers breached Senegal’s national biometric database, compromising personal and biometric data of nearly 20 million residents.
The Outlook add-in AgreeTo, after being abandoned by its developer, was repurposed into a phishing kit that stole 4,000 credentials and payment data.

Newly Discovered Vulnerabilities

Apple patched a zero-day vulnerability (CVE-2026-20700) in the ‘dyld’ component, which allowed arbitrary code execution and was exploited in the wild.
A critical pre-authentication remote code execution vulnerability in BeyondTrust Remote Support and Privileged Remote Access appliances is being actively exploited following the public release of a proof-of-concept.
The WPvivid Backup & Migration plugin for WordPress (900,000+ installs) is vulnerable to a critical RCE flaw allowing attackers to upload arbitrary files.
Multiple vulnerabilities in Windows LNK shortcut files were disclosed, enabling attackers to deploy malicious payloads, though Microsoft does not classify them as vulnerabilities.
Ivanti EPMM zero-day bugs continue to be exploited in active attacks.

Notable Threat Actor Activity

Google reported North Korea-linked UNC2970 using the Gemini AI model for reconnaissance and attack support.
The Lazarus Group launched a campaign targeting npm and PyPI repositories with malicious packages under the guise of fake recruitment, aiming to compromise developers.
Google observed state-backed actors from Russia, China, North Korea, and Iran, as well as cybercriminals and hacktivists, targeting the global defense sector.
The Qilin ransomware gang was identified as responsible for the Conpet S.A. breach.
30 malicious Chrome extensions, posing as AI tools and installed by over 300,000 users, were used to steal credentials, emails, and browsing data.
The AMOS infostealer is targeting macOS users via popular AI apps and extension marketplaces to harvest credentials.
AI website builders are being leveraged by criminals to clone and impersonate major brands for phishing and fraud campaigns.

Trends, Tools, or Tactics of Interest

Voice phishing (vishing) kits with real-time control capabilities have emerged, enabling threat actors to bypass multifactor authentication.
Sophisticated phishing campaigns are bypassing Microsoft 365 MFA, targeting North American organizations.
Ransomware groups are increasingly using “naming and shaming” tactics, exposing corporate data on leak sites to pressure victims.
Attackers are increasingly abusing trusted tools and established methods, rather than relying on novel exploits.
AI prompt-based RCE and “Claude 0-click” vulnerabilities are being discussed in the context of new attack vectors.
AI recommendation poisoning was uncovered in 31 companies across 14 industries, facilitated by turnkey tools.
Criminals are using AI-assisted website builders to rapidly clone legitimate brand websites for phishing.
Abandoned software projects, such as the AgreeTo Outlook add-in, are being hijacked and weaponised for credential theft.
Booz Allen released Vellox Reverser, an AI-powered tool for automated malware analysis and reverse engineering.
SpecterOps launched BloodHound Scentry, a platform for identity attack path management and analysis.

Regulatory or Policy Developments Affecting the Security Industry

Russia is attempting to block WhatsApp and Telegram as part of a broader crackdown on non-government-controlled communication platforms.
Microsoft announced forthcoming “Windows Baseline Security” measures, enabling runtime integrity safeguards by default to ensure only properly signed software runs.
China has revived the Tianfu Cup hacking contest with increased secrecy and reduced rewards.
Meta is facing landmark trials alleging failure to protect children from sexual exploitation, grooming, and addiction-related harms on its platforms.

Cybersecurity Brief – 2025-12-13

Sat, 13 Dec 2025 00:00:00 +0000

Major Incidents or Breaches

Coupang suffered a data breach affecting 33.7 million customers, traced to a former employee who retained internal system access after departure.
Fieldtex Products experienced a data breach impacting 238,000 individuals, with the Akira ransomware group claiming responsibility for stealing 14 GB of data.
At least nine organizations were compromised through exploitation of a recently patched Gladinet CentreStack vulnerability.
A fake torrent for “One Battle After Another” was used to distribute Agent Tesla RAT malware via malicious subtitle files.
Google ads are being abused to direct Mac users to malicious AI chat sites, resulting in the distribution of the Atomic macOS Stealer (AMOS).
The US government’s policy of publishing H-1B applicant social accounts has raised significant privacy concerns, exposing personal data to potential targeting, impersonation, and extortion.

Newly Discovered Vulnerabilities

Apple released emergency security updates to patch two zero-day WebKit vulnerabilities, both exploited in sophisticated attacks targeting specific individuals.
Two new types of vulnerabilities in React Server Components (RSC) were patched by the React team; these could lead to denial-of-service or source code exposure.
The React2Shell vulnerability (CVE-2025-55182) is under widespread exploitation, prompting emergency mitigation efforts and a CISA directive for federal agencies to patch by 12 December 2025. Some proof-of-concept exploits can bypass web application firewall (WAF) rules.
A new Windows zero-day vulnerability affecting the Remote Access Connection Manager (RasMan) service has been disclosed, with unofficial patches made available.
A critical GeoServer vulnerability is being actively exploited in XML External Entity (XXE) injection attacks, with CISA ordering immediate patching.
Notepad++ patched a vulnerability in its updater mechanism that allowed for update file authentication bypass and potential traffic hijacking.
Kali Linux 2025.4 released with three new hacking tools and desktop environment updates.
Zigbee protocol security assessment revealed two application-level attack vectors that can be exploited to remotely turn Zigbee endpoints on or off.

Notable Threat Actor Activity

North Korean threat actors are conducting job invitation scams via social media platforms such as Threads, going beyond typical fake employer scams.
Fake OSINT and GPT utility repositories on GitHub are being used to distribute a new, previously undocumented JavaScript-based remote access trojan (PyStoreRAT).
Supply chain attacks targeting GitHub Actions have increased in 2025, with researchers urging adoption of a shared responsibility model for open source security.
At least nine organizations were compromised by threat actors exploiting the Gladinet CentreStack vulnerability.
Criminals are leveraging malicious subtitle files in torrents and poisoned AI chat sites via Google ads to spread Agent Tesla RAT and Atomic macOS Stealer, respectively.

Trends, Tools, or Tactics of Interest

Advanced phishing kits (BlackForce, GhostFrame, InboxPrime AI, Spiderman) are using AI and multi-factor authentication (MFA) bypass techniques to facilitate large-scale credential theft.
Email-based phishing kits now leverage Telegram bots and custom administration panels for managing stolen data.
There is an observed increase in attacks exploiting React2Shell, including the use of WAF bypass techniques in proof-of-concept exploits.
Shadow IT in the form of “shadow spreadsheets” is exposing sensitive data outside official controls.
The browser is increasingly the main interface for generative AI tools within enterprises, raising concerns about policy, isolation, and data controls.
$320,000 was awarded at Zeroday.Cloud for exploits against open source projects such as Grafana, Linux Kernel, Redis, MariaDB, and PostgreSQL.
The Akira ransomware group continues to claim responsibility for significant breaches.
A new Android in-the-wild exploit (DNG) has been identified through suspicious image files uploaded to VirusTotal.
Vibe coding and unmanaged code practices are highlighted as introducing significant security risks.

Regulatory or Policy Developments Affecting the Security Industry

CISA has mandated that US federal agencies patch the actively exploited GeoServer vulnerability immediately.
MITRE released its 2025 list of the top 25 most dangerous software weaknesses, with XSS, SQL injection, and CSRF at the top.
Microsoft has expanded its bug bounty program to include critical vulnerabilities in third-party and open source code that impact Microsoft services.
Microsoft will bundle Security Copilot with M365 Enterprise licenses, alongside the launch of 12 new security agents.
The US government’s publication of H-1B applicants’ social media accounts has sparked privacy concerns due to increased exposure to cyber threats.
The Pentagon has ordered an accelerated transition to post-quantum cryptography (PQC) for its systems.
The Trump administration reportedly dropped sanctions against Chinese actors for the Salt Typhoon attacks on US telecoms, raising concerns about prioritising trade over cybersecurity enforcement.

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 – 2025-10-19

Sun, 19 Oct 2025 00:00:00 +0000

Major Incidents or Breaches

Europol dismantled a cybercrime-as-a-service SIM farm network responsible for powering 49 million fake accounts globally. The operation enabled clients to conduct a range of criminal activities, including fraud and phishing, by automating account creation and abuse.
Hackers published personal information (“doxed”) of officials from US agencies including ICE, DHS, DOJ, and FBI. The same incident exposed details of a secret FBI anti-ransomware task force.

Newly Discovered Vulnerabilities

Security researchers identified a new .NET-based malware, dubbed CAPI Backdoor, distributed via phishing ZIP files. The campaign has targeted Russian automobile and e-commerce companies.

Notable Threat Actor Activity

A new campaign is delivering infostealing malware such as AMOS (Atomic macOS Stealer) and Odyssey to macOS users. Attackers are leveraging Google Ads to distribute fake versions of popular platforms including Homebrew, LogMeIn, and TradingView, specifically targeting macOS developers.
North Korean threat actors have been detected hiding malware within the Ethereum blockchain, using it as a covert delivery channel.