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RANSOMWARE GROUP CLAIMS HACKING OF OREGON REGULATOR AFTER DATA BREACH DENIAL

Oregon's Department of Environmental Quality (DEQ) is investigating a cyberattack that forced network shutdowns. Despite the agency repeatedly stating it found no evidence of a data breach, the ransomware group Rhysida claims to have stolen 2.5 TB of files, demanding $2.5 million in bitcoin to prevent the auction of the allegedly stolen data.

2025.04.18
securityweek.com2 min readTLDR InfoSec

CRITICAL ERLANG/OTP SSH VULNERABILITY (CVSS 10.0) ALLOWS UNAUTHENTICATED CODE EXECUTION

A critical vulnerability (CVE-2025-32433) in Erlang/OTP's SSH implementation allows attackers to execute arbitrary code without authentication. The flaw received a maximum CVSS score of 10.0. Affecting all SSH servers using the Erlang/OTP SSH library, it enables unauthenticated attackers to send protocol messages before authentication. Users are advised to update ASAP.

2025.04.18
links.tldrnewsletter.com3 min readTLDR InfoSec

MINISTER'S X ACCOUNT HACKED TO PROMOTE CRYPTO SCAM

The head of the UK's House of Commons Lucy Powell's X account was hacked to promote a new scam cryptocurrency. The post described a new community-driven digital currency known as $HCC. Analysts noted that there had been only 34 transactions for the coin resulting in a profit of around £225.

2025.04.18
bbc.com2 min readTLDR InfoSec

INVOKING MISCONFIGURED API GATEWAYS FROM ANY EXTERNAL AWS ACCOUNTS

Private API Gateways in AWS are not internet accessible but are accessible to anyone in the AWS networks. Users who don't realize this can misconfigure the API Gateway with a Principal of ‘*' with the intention of allowing access from any VPC in their account, but are actually opening it to any VPC in AWS. This attack generally cannot be exploited without some initial access or knowledge of the API Gateway endpoint and REST API spec.

2025.04.18
offensai.com6 min readTLDR InfoSec

EVERYONE KNOWS YOUR LOCATION, PART 2: TRY IT YOURSELF AND SHARE THE RESULTS

This post discusses a method for analyzing mobile app data sharing and provides a Python notebook and guide to enable anyone to monitor and investigate how apps share location and other personal data. The author has created visualization tools showing how adtech companies like Unity dominate mobile game traffic, with hundreds of data requests happening within seconds of opening an app. The guide walks readers through setting up mitmproxy to intercept mobile traffic, recording app sessions, and analyzing the captured data to discover what personal information is being shared with third parties.

2025.04.18
timsh.org9 min readTLDR InfoSec

PILLAR SECURITY (PRODUCT LAUNCH)

Pillar Security provides security controls throughout the entire AI lifecycle, from integrating with existing code repositories and data infrastructures to mapping AI models, datasets, and frameworks.

2025.04.18
pillar.securityTLDR InfoSec

BLACKCAT

BlackCat is a PowerShell module designed to assess the security posture of Azure environments.

2025.04.18
github.comGitHub repositoryTLDR InfoSec

CORSHA(PRODUCT LAUNCH)

Corsha provides a machine identity platform (m-IdP) that authenticates, manages, and governs the growing traffic between machines, facilitating secure multi-factor authentication (MFA) between any machines.

2025.04.18
corsha.comTLDR InfoSec

FLORIDA DRAFT LAW MANDATING ENCRYPTION BACKDOORS FOR SOCIAL MEDIA ACCOUNTS BILLED ‘DANGEROUS AND DUMB'

Florida's draft bill, which requires social media companies to implement encryption backdoors for law enforcement, has advanced to the Senate floor. The "Social Media Use by Minors" legislation would also require parental access to children's accounts and prohibit the use of disappearing messages for minors. Critics argue the bill would compromise security and make users less safe.

2025.04.18
techcrunch.com3 min readTLDR InfoSec

MCP IS THE NEW INTERFACE FOR SECURITY TOOLS

MCP servers are the future of security as they can unify disparate security tooling, handle the massive amounts of data used in security, and enable security professionals who don't know how to code. MCP servers offer a fully customized, single-pane-of-glass interface for organizations. Authentication and auditing remain issues that need to be implemented outside of the spec.

2025.04.18
mayakaczorowski.com4 min readTLDR InfoSec

DPRK IT WORKERS IN OPEN SOURCE AND FREELANCE PLATFORMS

This document details a two-month investigation by cybersecurity researchers who discovered North Korean IT workers infiltrating legitimate open-source projects, particularly through the freelance platform onlyDust. The researchers identified three leading actors (0xExp-po, bestselection18/Hiroto Iwaki, and aidenwong812/cryptogru812) who created elaborate false identities, manipulated commit histories, and received payments totaling at least $1,874 across 11 repositories while contributing 62 pull requests. The investigation highlights serious security risks, including potential supply chain attacks, as these DPRK IT workers often collaborate with North Korean hacking teams to identify targets and establish initial access for future attacks.

2025.04.18
ketman.org12 min readTLDR InfoSec

AWSSECURITYCHANGES (WEBAPP)

Monitor AWS documentation changes and security updates in real-time and track modifications across all AWS services to stay informed about critical security changes.

2025.04.18
awssecuritychanges.comTLDR InfoSec

Sponsored

OF WEB DATA

Flashpoint's Threat Intelligence Report looks at +3.6 petabytes of data from the hardest-to-reach corners of the web — revealing 2.1B stolen credentials and 5,742 ransomware attacks in 2024, with five major RaaS groups responsible for nearly half.

2025.04.17
go.flashpoint.ioSponsorTLDR InfoSec

CVE, GLOBAL SOURCE OF CYBERSECURITY INFO, WAS HOURS FROM BEING CUT BY DHS

The Common Vulnerability and Exposures (CVE) repository, a 25-year-old program run by MITRE for DHS, serves as the global cybersecurity standard for identifying and documenting security vulnerabilities. Yesterday, there were rumors that MITRE's contract would expire, but it has received an 11-month extension from CISA, averting potential widespread disruption to vulnerability management worldwide.

2025.04.17
arstechnica.com3 min readTLDR InfoSec

APPLE FIXES TWO ZERO-DAYS EXPLOITED IN TARGETED IPHONE ATTACKS

Apple has released emergency security updates to patch two new zero-day vulnerabilities exploited in sophisticated attacks against iPhones. The first vulnerability is a flaw in CoreAudio, which can be exploited by processing an audio stream in a malicious file to execute remote code. The second vulnerability is a flawed RPAC that allows attackers with read or write access to bypass Pointer Authentication, which is a security feature to protect against memory vulnerabilities.

2025.04.17
bleepingcomputer.com2 min readTLDR InfoSec

HUGE RANSOMWARE CAMPAIGN TARGETS AWS S3 STORAGE

Security researchers have discovered a publicly accessible server containing 1,229 unique AWS credentials. Upon investigation, the researchers found that the active keys were used in S3 ransomware campaigns, where the attackers utilized SSE-C to encrypt S3 bucket data and demanded 0.3 BTC (~$25,000) per victim. In some cases, the highly automated attackers were willing to offer a “proof of decryption” test file restoration.

2025.04.17
links.tldrnewsletter.com3 min readTLDR InfoSec

EDV - ENDPOINT DETECTION & VIBES

EDV is a tool that feeds Windows Sysmon security events to Microsoft's Copilot AI through WebSocket connections, asking it to identify malicious activity. Testing with known attack techniques showed Copilot could detect about 40% of malicious events not blocked by Windows Defender, though with inconsistent results and false positives.

2025.04.17
tierzerosecurity.co.nz4 min readTLDR InfoSec

ACCESS DENIED? NOT ALWAYS! HUNTING IDORS AND ACCESS CONTROL FLAWS

IDOR vulnerabilities occur when attackers manipulate direct object references like IDs in URLs to access unauthorized data. As a common form of Broken Access Control, these flaws are prevalent in web applications, relatively easy to find, and highly impactful. This guide walks through how bug bounty hunters regularly exploit it.

2025.04.17
medium.com9 min readTLDR InfoSec

DETECTING C2-JITTERED BEACONS WITH FREQUENCY ANALYSIS

Frequency analysis is a technique that allows for the detection of anomalies in a set of data. This post details how Fourier Transforms can be used to shift data to the frequency domain and then detect C2 beaconing behavior. When a C2 beacon utilizes jitter to vary its periodicity, a sliding window must be used to properly detect the activity.

2025.04.17
diegowritesa.blog7 min readTLDR InfoSec

Sponsored

SYMBIOTIC BRINGS AI DETECTION, REMEDIATION, AND EDUCATION DIRECTLY INTO THE IDE

Developers are moving fast - your security should too. Symbiotic Security v1 [11] helps you ship secure code without slowing down. With AI-powered remediation, real-time contextual training, and an AI chat assistant built into your IDE, security works with developers to accelerate their flow. Teams can save an estimated $750+ per developer, per month. Speed and security, finally aligned. Get

2025.04.17
symbioticsec.aiSponsorTLDR InfoSec

AURASCAPE (PRODUCT LAUNCH)

Aurascape helps corporate IT departments monitor AI employee usage across thousands of AI applications—both approved and unauthorized. The technology tracks interactions, decodes prompt-response data, and evaluates security risks, even for less common AI tools.

2025.04.17
aurascape.aiTLDR InfoSec

CONTENT

Security automation content in SCAP, Bash, Ansible, and other formats

2025.04.17
github.comGitHub repositoryTLDR InfoSec

OLLVM-UNFLATTENER

ollvm-unflattener is a Python tool to deobfuscate control flow flattening applied by OLLVM.

2025.04.17
github.comGitHub repositoryTLDR InfoSec

SECURITY OPERATIONS WITH RUNREVEAL'S MCP SERVER

SIEM provider RunReveal released an MCP server for use with its product. In this post, RunReveal provides insights into some ways that its customers are using the MCP server for threat hunting with Cursor, investigating GuardDuty alerts, and tuning and testing alerts. RunReveal believes that enriching and standardizing data to make it easier for LLMs to query is the future of its product.

2025.04.17
blog.runreveal.com4 min readTLDR InfoSec

THE WINDOWS REGISTRY ADVENTURE #6: KERNEL-MODE OBJECTS

This blog post focuses on kernel-mode registry objects essential for runtime hive management. It meticulously examines key internal structures, including _CMHIVE, _HHIVE, memory mapping mechanisms, cell maps, and key control blocks that collectively enable registry functionality like transaction management and synchronization. The post provides detailed explanations of these previously undocumented structures based on reverse engineering of Windows Server 2019, noting these findings apply to Windows 11 as well.

2025.04.17
googleprojectzero.blogspot.com66 min readTLDR InfoSec

Sponsored

PARK WITH DUO

Earlier this year, Microsoft made MFA mandatory on all Azure logins. IT and security teams were faced with the daunting task of forcing _everyone_ to transition all at once.

2025.04.16
duo.comSponsorTLDR InfoSec

NOTORIOUS IMAGE BOARD 4CHAN HACKED AND INTERNAL DATA LEAKED

The internet forum 4chan was hacked and taken offline on Tuesday. Screenshots of internal systems circulated online, exposing moderator lists and backend code. A janitor confirmed the breach's authenticity and noted that hackers may have accessed subscriber data.

2025.04.16
techcrunch.com3 min readTLDR InfoSec

2.6 MILLION IMPACTED BY LANDMARK ADMIN, YOUNG CONSULTING DATA BREACHES

Landmark Admin and Young Consulting have reported major data breaches that affect 2.6 million individuals. A ransomware attack on Landmark via stolen VPN credentials compromised 1.6 million people's sensitive personal data, while a breach at Young Consulting affected 1 million people, exposing names, SSNs, and health information.

2025.04.16
securityweek.com2 min readTLDR InfoSec

KIDNEY DIALYSIS FIRM DAVITA HIT BY WEEKEND RANSOMWARE ATTACK

DaVita, a major kidney care provider, reported a ransomware attack over the weekend. The firm isolated affected systems, but some operations are still disrupted. DaVita is investigating and has not disclosed which ransomware gangs may be involved or if patient data was stolen.

2025.04.16
bleepingcomputer.com2 min readTLDR InfoSec

THREAT SPOTLIGHT: HIJACKED AND HIDDEN: NEW BACKDOOR AND PERSISTENCE TECHNIQUE

ReliaQuest discovered a sophisticated attack chain in March 2025 that targeted finance and professional services sectors. It begins with Microsoft Teams phishing but evolves into a novel persistence technique that involves Component Object Model Type Library hijacking. The attack deploys previously unseen malware with a PowerShell backdoor that uses Telegram for command and control, showing similarities to earlier campaigns attributed to the "Storm-1811" threat group known for deploying Black Basta ransomware. To defend against these tactics, organizations should restrict external Microsoft Teams communications, block specific domains at the network edge, and implement various Windows security hardening measures.

2025.04.16
reliaquest.com12 min readTLDR InfoSec

RED TEAMING WITH SERVICENOW

MDSec, a British cybersecurity consultancy, provides an overview of ServiceNow functionality and ways to abuse it for red team functionality. This post discusses some access vectors, such as the API and login.do endpoint, and details how custom actions, discovery, orchestration, the LDAP listener, and relaying can be abused.

2025.04.16
mdsec.co.uk10 min readTLDR InfoSec

NETRISE (PRODUCT LAUNCH)

NetRise's Supply Chain Detection and Response (SCDR) platform provides a Software Bill of Materials (SBOM) covering various devices, which improves vulnerability detection and remediation and helps ensure regulatory compliance.

2025.04.16
netrise.ioTLDR InfoSec

JUSTNIFFER

Justniffer is a network traffic analysis tool that allows you to analyze and trace HTTP traffic in a network. Justniffer allows capturing network packets and decoding of HTTP data, providing detailed information about HTTP requests and responses, such as the IP address of the client and server, the requested URL, header fields, and message content.

2025.04.16
github.comGitHub repositoryTLDR InfoSec

OPENAI SHIPS GPT-4.1 WITHOUT A SAFETY REPORT

OpenAI launched GPT-4.1 without providing a safety report, deviating from its usual practice of publishing such reports. The omission has raised concerns among safety researchers and former employees, who argue that transparency in AI safety is critical.

2025.04.16
au.finance.yahoo.com3 min readTLDR InfoSec

NEW SSL/TLS CERTS TO EACH LIVE NO LONGER THAN 47 DAYS BY 2029

The Browser Forum voted to reduce SSL/TLS certificate validity from the current 398 days to just 47 days by 2029. The phased reduction begins in March 2026 with 200-day limits, dropping to 100 days in 2027. Tech giants unanimously supported the change to enhance security by limiting abuse of compromised certificates, though sysadmins worry about increased workload without automation.

2025.04.16
theregister.com3 min readTLDR InfoSec

MICROSOFT BLOCKS ACTIVEX BY DEFAULT IN MICROSOFT 365, OFFICE 2024

Microsoft announced that it will begin disabling all ActiveX controls in Windows versions of Office 2024 and Microsoft 365 starting later this month. After this change goes into effect, users will see a notification at the top of content that uses ActiveX stating: "BLOCKED CONTENT: The ActiveX content in this file is blocked." ActiveX can be re-enabled via the Trust Center.

2025.04.16
bleepingcomputer.com2 min readTLDR InfoSec