Tag: dns
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AWS Bedrock AgentCore Sandbox Bypass Enables Stealthy C2 and Data Exfiltration
A newly disclosed vulnerability in AWS Bedrock AgentCore Code Interpreter allows threat actors to bypass network isolation and establish stealthy command-and-control (C2) channels. AWS originally advertised this mode as providing complete isolation without external access, researchers found that it permits outbound DNS queries for A and AAAA records. This structural allowance enables attackers to exfiltrate…
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AI Flaws in Amazon Bedrock, LangSmith, and SGLang Enable Data Exfiltration and RCE
Cybersecurity researchers have disclosed details of a new method for exfiltrating sensitive data from artificial intelligence (AI) code execution environments using domain name system (DNS) queries.In a report published Monday, BeyondTrust revealed that Amazon Bedrock AgentCore Code Interpreter’s sandbox mode permits outbound DNS queries that an attacker can exploit to enable interactive shells First seen…
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AWS Bedrock’s ‘isolated’ sandbox comes with a DNS escape hatch
Tags: access, bug-bounty, credentials, cvss, data, dns, iam, infrastructure, jobs, network, service, strategy, update, vulnerabilityAWS allegedly rolled back a fix: BeyondTrust said it discovered and reported the vulnerability to AWS on September 1, 2025, via the bug bounty platform HackerOne. AWS reportedly acknowledged receipt of the report and deployed an initial fix to production in November.However, BeyondTrust was informed a few days later that the initial fix was rolled…
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Researchers Find Data Leak Risk in AWS Bedrock AI Code Interpreter
AWS Bedrock AI tool flaw allows data leaks via DNS queries in AgentCore Code Interpreter sandbox, exposing sensitive cloud data, researchers warn. First seen on hackread.com Jump to article: hackread.com/data-leak-risk-in-aws-bedrock-ai-code-interpreter/
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Security Flaw in AWS Bedrock Code Interpreter Raises Alarms
DNS-based attack in AWS Bedrock AgentCore lets AI sandboxes exfiltrate cloud data First seen on infosecurity-magazine.com Jump to article: www.infosecurity-magazine.com/news/security-flaw-aws-bedrock/
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Privacy Protection: Encrypted DNS
Encrypted DNS (Domain Name System) refers to modern protocols that secure DNS queries by encrypting them between a user’s device and the DNS resolver. Instead First seen on hackingarticles.in Jump to article: www.hackingarticles.in/privacy-protection-encrypted-dns/
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Hackers abuse .arpa DNS and ipv6 to evade phishing defenses
Threat actors are abusing the special-use “.arpa” domain and IPv6 reverse DNS in phishing campaigns that more easily evade domain reputation checks and email security gateways. First seen on bleepingcomputer.com Jump to article: www.bleepingcomputer.com/news/security/hackers-abuse-arpa-dns-and-ipv6-to-evade-phishing-defenses/
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Defending Against Iranian Cyber Threats in the Wake of Operation Epic Fury
On February 28, 2026, the United States and Israel launched Operation Epic Fury (U.S.) and Operation Roaring Lion (Israel), a coordinated military and cyber campaign targeting Iranian military installations, IRGC leadership, and government infrastructure. U.S. Cyber Command was designated the “first mover,” with cyber operations beginning before any kinetic weapons were deployed. In the first…
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14 old software bugs that took way too long to squash
Tags: access, api, attack, authentication, automation, bug-bounty, communications, computer, control, credentials, cve, cvss, cyber, data, data-breach, dns, dos, encryption, exploit, flaw, hacker, Hardware, infosec, infrastructure, Internet, kaspersky, linux, malicious, malware, microsoft, mitigation, network, nist, open-source, password, programming, remote-code-execution, risk, service, software, stuxnet, supply-chain, technology, theft, threat, tool, update, usa, vulnerability, windows, zero-dayAge: 30 yearsDate introduced: 1995Date fixed: February 2026Researchers unearthed a legacy flaw in the widely used libpng open-source library that had existed since the technology was first released more than 30 years ago.The heap buffer overflow vulnerability (CVE-2026-25646) meant that applications using the flawed software would crash when presented with a maliciously constructed PNG raster…
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14 old software bugs that took way too long to squash
Tags: access, api, attack, authentication, automation, bug-bounty, communications, computer, control, credentials, cve, cvss, cyber, data, data-breach, dns, dos, encryption, exploit, flaw, hacker, Hardware, infosec, infrastructure, Internet, kaspersky, linux, malicious, malware, microsoft, mitigation, network, nist, open-source, password, programming, remote-code-execution, risk, service, software, stuxnet, supply-chain, technology, theft, threat, tool, update, usa, vulnerability, windows, zero-dayAge: 30 yearsDate introduced: 1995Date fixed: February 2026Researchers unearthed a legacy flaw in the widely used libpng open-source library that had existed since the technology was first released more than 30 years ago.The heap buffer overflow vulnerability (CVE-2026-25646) meant that applications using the flawed software would crash when presented with a maliciously constructed PNG raster…
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Hackers Abuse .arpa Top-Level Domain to Host Phishing Scams
Hackers abuse the .arpa Top-Level Domain to host phishing scams, using IPv6 tunnels, reverse DNS tricks, and shadow domains to bypass security checks. First seen on hackread.com Jump to article: hackread.com/hackers-arpa-top-level-domain-phishing-scams/
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Vulnerability monitoring service secures public-sector websites faster
Tags: business, ceo, cyber, dns, government, Internet, monitoring, office, resilience, risk, service, skills, technology, threat, tool, update, vulnerabilityTools good, talk better: The UK government’s VMS uses a combination of commercial and proprietary scanning tools to detect vulnerabilities in internet-facing assets.But McKay cautions against drawing the wrong conclusion from the results.”Process, accountability and taking ownership for explaining why this matters to the resilience of the business is far more important than the technical…
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A fake FileZilla site hosts a malicious download
A tampered copy of FileZilla quietly contacts attacker-controlled servers using encrypted DNS traffic that can slip past traditional monitoring. First seen on securityboulevard.com Jump to article: securityboulevard.com/2026/03/a-fake-filezilla-site-hosts-a-malicious-download/
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UAT-10027 Targets U.S. Education and Healthcare with Dohdoor Backdoor
A previously undocumented threat activity cluster has been attributed to an ongoing malicious campaign targeting education and healthcare sectors in the U.S. since at least December 2025.The campaign is being tracked by Cisco Talos under the moniker UAT-10027. The end goal of the attacks is to deliver a never-before-seen backdoor codenamed Dohdoor.”Dohdoor utilizes the DNS-over-HTTPS…
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UAT-10027 Targets U.S. Education and Healthcare with Dohdoor Backdoor
A previously undocumented threat activity cluster has been attributed to an ongoing malicious campaign targeting education and healthcare sectors in the U.S. since at least December 2025.The campaign is being tracked by Cisco Talos under the moniker UAT-10027. The end goal of the attacks is to deliver a never-before-seen backdoor codenamed Dohdoor.”Dohdoor utilizes the DNS-over-HTTPS…
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UAT-10027 Targets U.S. Education and Healthcare with Dohdoor Backdoor
A previously undocumented threat activity cluster has been attributed to an ongoing malicious campaign targeting education and healthcare sectors in the U.S. since at least December 2025.The campaign is being tracked by Cisco Talos under the moniker UAT-10027. The end goal of the attacks is to deliver a never-before-seen backdoor codenamed Dohdoor.”Dohdoor utilizes the DNS-over-HTTPS…
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UAT-10027 Targets U.S. Education and Healthcare with Dohdoor Backdoor
A previously undocumented threat activity cluster has been attributed to an ongoing malicious campaign targeting education and healthcare sectors in the U.S. since at least December 2025.The campaign is being tracked by Cisco Talos under the moniker UAT-10027. The end goal of the attacks is to deliver a never-before-seen backdoor codenamed Dohdoor.”Dohdoor utilizes the DNS-over-HTTPS…
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Querying the free DNSBLs via Oracle? Move to Spamhaus Technology’s free Data Query Service
If you’re using the free DNS Blocklists (DNSBLs) through the Public Mirrors while running on Oracle’s network, you’ll need to make a few small adjustments to your email setup. These changes are simple to apply, but if you don’t take action, you risk having some – or even all – of your email blocked after…
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TDL 016 – Speed, Risk, and Responsibility in the Age of AI – Rafael Ramirez
Tags: access, ai, antivirus, automation, awareness, business, ciso, cloud, control, country, cyber, data, defense, detection, dns, firewall, governance, government, hacker, ibm, incident response, intelligence, Internet, law, linkedin, login, mfa, microsoft, network, risk, saas, service, skills, software, startup, strategy, technology, threat, tool, training, update, vulnerability, windows, zero-trustSummary In a recent episode of The Defenders Log, host David Redekop sat down with cyber security expert Rafael Ramirez to navigate the rapidly shifting landscape of AI security. As we move deeper into 2026, the duo explored how artificial intelligence has evolved from simple chatbots into powerful, autonomous “agentic” systems. The Double-Edged Sword of…
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Dynamic Objects in Active Directory: The Stealthy Threat
Active Directory’s “dynamic objects” feature offers attackers a perfect evasion cloak. These objects automatically self-destruct without a trace, so they allow adversaries to bypass quotas, pollute access lists, and persist in the cloud, leaving forensic investigators with nothing to analyze. Key takeaways The threat: Dynamic objects self-delete without leaving any traces, or “tombstones” in AD…
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Proaktive Bedrohungsaufklärung und einheitlicher Schutz gewinnen angesichts wachsender Komplexität zunehmend an Bedeutung
Mit Blick auf das zweite Halbjahr 2025 verzeichnet Watchguard Technologies im aktuellen Internet-Security-Report einen rapiden Anstieg evasiver und verschlüsselter Malware. Dieser Trend markiert die Notwendigkeit proaktiver und ganzheitlicher Sicherheitsansätze. Basierend auf anonymisierten, aggregierten Bedrohungsinformationen aus Watchguards Netzwerk-, Endpoint- und DNS-Filter-Lösungen macht der Report deutlich, dass sowohl Volumen als auch Raffinesse von Malware-Angriffen steigen. Dabei werden…
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Notepad++ author says fixes make update mechanism ‘effectively unexploitable’
Tags: access, attack, backdoor, china, control, credentials, dns, espionage, exploit, group, infrastructure, intelligence, malicious, monitoring, network, risk, risk-management, service, software, supply-chain, threat, ukraine, update, vulnerabilityCSOonline, Ho said that no system can ever be declared absolutely unbreakable, “but the new design dramatically raises the bar.”An attacker must now compromise both the hosting infrastructure and the signing keys, he explained, adding that the updater now validates both the manifest and the installer, each with independent cryptographic signatures. And any mismatch, missing…
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OVHcloud DNS Integration: Simplify DMARC Deployment Across All Your Domains
Originally published at OVHcloud DNS Integration: Simplify DMARC Deployment Across All Your Domains by EasyDMARC. Managing DNS records across hundreds of domains has … First seen on securityboulevard.com Jump to article: securityboulevard.com/2026/02/ovhcloud-dns-integration-simplify-dmarc-deployment-across-all-your-domains/
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ClickFix Attacks Abuses DNS Lookup Command to Deliver ModeloRAT
ClickFix campaigns have adapted to the latest defenses with a new technique to trick users into infecting their own machines with malware. First seen on darkreading.com Jump to article: www.darkreading.com/endpoint-security/clickfix-attacks-dns-lookup-command-modelorat