Emergency patches out now for those managing the millions of domains assumed to be affected Emergency patches are available for a critical vulnerability in cPanel and WHM that allows attackers to bypass authentication and gain root access to servers managed using it.…
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The U.S. Department of Justice (DoJ) on Thursday announced the sentencing of two cybersecurity professionals to four years each in prison for their role in facilitating BlackCat ransomware attacks in 2023. Ryan Goldberg, 40, of Georgia, and Kevin Martin, 36, of Texas, were accused of deploying the ransomware against multiple victims located throughout the U.S. between April and December 2023.
Mini Shai-Hulud caught spreading credential-stealing malware The wave of supply chain attacks aimed at security and developer tools has washed up more victims, namely SAP and Intercom npm packages, plus the lightning PyPI package.…
An exploit has been published for a local privilege escalation vulnerability dubbed "Copy Fail" that impacts Linux kernels released since 2017, allowing an unprivileged local attacker to gain root permissions. [...]
Microsoft's patch for a 0-day exploited by Russian spies fell short. Another Windows flaw is under attack
Second try's a charm? Microsoft and the US Cybersecurity and Infrastructure Security Agency (CISA) warned that attackers are exploiting a zero-click Windows flaw that can expose sensitive information on vulnerable systems.…
Latest
Friday, May 1
The majority of widely used AI clients like: * Claude Code * Claude Desktop * Cursor * LibreChat * Amazon Q CLI do not implement the critical refresh-token flow of the OAuth standard forcing developers to issue long lived tokens creating a serious security regression in an already solved problem. This write up provides a quick overview of the current state of implementation and provides a reference page for tracking the statuses of 14 major clients.
Mini Shai-Hulud (TeamPCP) — same attack pattern, fifth time this year. The detection-after-publish model is broken.
Wiz published details today on Mini Shai-Hulud, the latest TeamPCP supply chain operation. SAP npm packages (`@cap-js/sqlite`, u/cap-js`/postgres`, u/cap-js`/db-service`, `mbt`) got a malicious `preinstall` hook that runs Bun, executes an obfuscated payload, and exfils GitHub tokens, npm creds, AWS/Azure/GCP secrets, Kubernetes tokens, and Actions secrets to attacker-controlled GitHub repos. New twists vs. previous TeamPCP ops: browser credential theft, Claude Code + VS Code reinfection hooks, and a fallback that searches GitHub for commits with the magic string `OhNoWhatsGoingOnWithGitHub` to recover tokens from unrelated victims. What strikes me reading through the Wiz, Aikido, and Socket writeups back to back: the kill chain is identical to Shai-Hulud, Shai-Hulud 2.0, Nx, axios, and Namastex. Maintainer creds get phished or a token gets stolen → malicious version published → CI/CD pipelines worldwide pull it within minutes → secrets exfiltrated → npm yanks the version a few hours later. Every defensive tool I keep seeing recommended is reactive. Scanners, package allowlists, SCA, even most "firewall" products — they all depend on *someone detecting the malicious package first*. By the time threat intel updates and your tool starts returning 403s, every CI runner that pulled the package in the detection window has already been drained. And here's the part I keep coming back to: Mini Shai-Hulud exfils to [`api.github.com`](http://api.github.com) over GraphQL. That's an allowlisted destination for basically every build on the planet. A domain-level egress firewall does nothing. The malware also base64-encodes the stolen tokens (and double-base64s them in the fallback path), so a naive "scan for secrets in outbound traffic" check misses them entirely. So you've got two real defensive layers that can actually disrupt this without depending on detection speed: **Pre-install:** package version cooldown. Don't let a freshly-published version into your build for 24-72 hours, regardless of whether anyone's flagged it. pnpm has `minimumReleaseAge`, npm added `min-release-age`. Mini Shai-Hulud, axios, Namastex, both Shai-Hulud waves — all yanked well within 48 hours, all blocked by a cooldown gate with zero detection required. **Build-time:** outbound deep packet inspection on the runner itself. Not "is this domain allowlisted" — *is this build process trying to send something that looks like an encoded secret, even to a legitimate destination*. InvisiRisk's Build Application Firewall is the only product I've seen actually do this. They inspect outbound request bodies and headers as the build runs and detect base64, double-base64, and layered encoding schemes — the exact techniques Mini Shai-Hulud uses. So even if the malicious package is older than 48 hours, or the cooldown gets overridden, or it's a transitive dep nobody noticed, the secret can't physically leave the runner. They blogged about adding the encoded-secret interception specifically in response to TeamPCP / Shai-Hulud-style campaigns about a week ago. Defense-in-depth with both layers is what actually breaks this attack class. Cooldown handles the easy case (fresh malicious version, you just don't pull it). Build-time DPI handles the hard case (sleeper packages, overrides, transitive surprises, anything where the package made it into the build anyway). Is anyone running either layer in production? Curious especially about the build-time egress side — I assume the friction is around tuning what counts as "encoded secret leaving the build" without nuking every legitimate CI artifact upload. How are teams handling that?
McDonald's hiring platform, McHire (built by Paradox.ai), was secured using a test account with the credentials 123456:123456. It was connected to the live production system and left active since 2019. Did a small 6-min video explaining what happened and how it may affect end-users.
Cybersecurity researchers are warning of two cybercrime groups that are carrying out "rapid, high-impact attacks" operating almost within the confines of SaaS environments, while leaving minimal traces of their actions. The clusters, Cordial Spider (aka BlackFile, CL-CRI-1116, O-UNC-045, and UNC6671) and Snarky Spider (aka O-UNC-025 and UNC6661), have been attributed to high-speed data theft and
While doing some analysis of Weedhack a remote access trojan/info stealer that uses the Ethereum block chain for C2 infrastructure. I was able to statically decode the eth\_call results to break back the C2 domain it pulls. So I vibe coded a git repository to query the smart contract, decode the results and display the current C2 domain. I'm currently a student so any sort of feedback would be greatly appreciated. The purpose behind this project is to provide an indicator of compromise for weedhack. https://github.com/MrFluent1/Weedhack-C2-Tracking
Raw threat intel isn't enough without real-world context. Criminal IP has partnered with Securonix to integrate exposure-based intelligence into ThreatQ, automating analysis and speeding up investigations. [...]
Cybersecurity researchers have disclosed details of a new China-aligned espionage campaign targeting government and defense sectors across South, East, and Southeast Asia, along with one European government belonging to NATO. Trend Micro has attributed the activity to a threat activity cluster it tracks under the temporary designation SHADOW-EARTH-053. The adversarial collective is assessed to
Exploitation was underway before patches landed, at least one victim reports ransomware demand CISA has added a critical cPanel bug to its known-exploited list, confirming that attackers are already poking holes in one of the internet's most widely used hosting stacks.…
When we first launched Workers eight years ago, it was a direct-to-developers platform. Over the years, we have expanded and scaled the ecosystem so that platforms could not only build on Workers directly, but they could also enable their customers to ship code to us through many multi-tenant applications. We now see on Workers: Applications where users describe what they want, and the AI writes the implementation. Multi-tenant SaaS where every customer's business logic is, at runtime, some TypeScript the platform has never seen before. Agents that write and run their own tools. CI/CD products where every repo defines its own pipeline. Last month, when we shipped the Dynamic Workers open beta , we gave those platforms a clean primitive for the compute side: hand the Workers runtime some code at runtime, get back an isolated, sandboxed Worker, on the same machine, in single-digit milliseconds. Durable Object Facets extended the same idea to storage — each dynamically-loaded app can have its own SQLite database, spun up on demand, with the platform sitting in front, as a supervisor. Artifacts did the same for source control : a Git-native, versioned filesystem you can create by the tens of millions, one per agent, one per session, one per tenant. So, we have dynamic deployment for storage and source control. What’s next? Today, we are bridging durable execution and dynamic deployment with Dynamic Workflows . The gap between durable and dynamic execution
A skill that lets your AI agent browse the Tor network. Search 12 dark web engines, fetch .onion hidden services, spider entire dark web sites, extract IOCs (emails, crypto wallets, PGP keys), and produce structured OSINT reports. Works for threat intel, ransomware investigations, credential leak monitoring, and OSINT research. Built as an orchestrator-conductor architecture — the agent drives every investigation decision. Export results to STIX 2.1, MISP, CSV, or JSON. [https://github.com/vichhka-git/OpenTor](https://github.com/vichhka-git/OpenTor)
Microsoft has fixed a known issue causing newly introduced Windows security warnings to display incorrectly when opening Remote Desktop (.rdp) files. [...]
Altman's crew now doing the same gatekeeping it recently mocked OpenAI is lining up a limited release of its new GPT-5.5-Cyber model to a handpicked circle of "cyber defenders," just weeks after taking a swipe at Anthropic for doing almost exactly the same thing.…
Microsoft has updated a Windows 11 in-box app removal policy introduced in October to include a dynamic list that lets IT admins choose which preinstalled Store apps to uninstall. [...]
313 Team tells Canonical: pay up or the packets keep coming Canonical says its web infrastructure is under attack after a pro-Iran hacktivist group instructed its members to target the open source giant.…
The managed security services market is projected to grow from $38.31 billion in 2025 to $69.16 billion by 2030[1], with cybersecurity being the fastest-growing sector[2]. Despite this opportunity, many MSPs leave revenue on the table because their go-to-market strategy fails to connect technical expertise with business needs. This execution gap is where most deals stall. MSPs often focus on
Microsoft has released the KB5083631 optional cumulative update for Windows 11, which includes 34 changes, such as a new Xbox mode for Windows PCs, enhanced security and performance for batch files, and performance improvements for launching startup apps. [...]
The U.S. Department of Justice (DoJ) on Thursday announced the sentencing of two cybersecurity professionals to four years each in prison for their role in facilitating BlackCat ransomware attacks in 2023. Ryan Goldberg, 40, of Georgia, and Kevin Martin, 36, of Texas, were accused of deploying the ransomware against multiple victims located throughout the U.S. between April and December 2023.
A new software supply chain attack campaign has been observed using sleeper packages as a conduit to subsequently push malicious payloads that enabled credential theft, GitHub Actions tampering, and SSH persistence. The activity has been attributed to the GitHub account "BufferZoneCorp," which has published a set of repositories that are associated with malicious Ruby gems and Go modules. As of
Start date pushed back a year, annual cost up a third, and UK's now handing out eight million passports a year The Home Office has increased the annual value and overall duration of its new passport production contract, increasing it to a total of £576 million as it starts a third round of engagement with suppliers.…
313 Team claims DDoS/extortion attack on Canonical, disrupting Ubuntu services and security update infrastructure
A report says Canonical/Ubuntu services were disrupted in a massive DDoS attack attributed to Islamic Cyber Resistance in Iraq - 313 Team, with Ubuntu.com reportedly returning 503 errors and possible impact to security/CVE-related services.
Thursday, April 30
Mini Shai-Hulud caught spreading credential-stealing malware The wave of supply chain attacks aimed at security and developer tools has washed up more victims, namely SAP and Intercom npm packages, plus the lightning PyPI package.…
KnowBe4 says 86% of phishing it tracked used AI, and inboxes are only the start Give a man a phishing kit and he might get lucky a couple of times; teach an AI to phish and it'll change the landscape, if KnowBe4's latest phishing trends report is accurate.…
One alleged cyber contractor was extradited to the US over the weekend China's "hacker-for-hire ecosystem has gotten out of control," according to Brett Leatherman, assistant director of the FBI's cyber division.…
A new phishing kit named Bluekit offers more than 40 templates targeting popular services and includes basic AI features for generating campaign drafts. [...]
OpenAI is rolling out Advanced Account Security for people concerned that their ChatGPT or Codex accounts could be potential targets of phishing attacks.
This CVSS 10.0 RCE vuln has been patched, automatically for some, so better check those workflows If you use Gemini CLI, watch out: Google has patched a CVSS 10.0 vulnerability in its command-line AI tool and is warning anyone running it in headless mode, or through GitHub Actions, to review their workflows.…
Two computer crime allegations follow up to 18M lines of data surfacing online French prosecutors say police detained a 15-year-old on April 25 over the alleged theft of millions of records from France Titres (ANTS), the agency handling secure documents.…
The U.S. Federal Bureau of Investigation (FBI) warned the transportation and logistics industry of a sharp rise in cyber-enabled cargo theft, with estimated losses in the United States and Canada reaching nearly $725 million in 2025. [...]
Hey everyone, Full breakdown and logic here: [https://medium.com/@osamamamoussa/real-time-data-protection-building-a-python-powered-active-response-dlp-suite-109a991f113f?postPublishedType=repub](https://medium.com/@osamamamoussa/real-time-data-protection-building-a-python-powered-active-response-dlp-suite-109a991f113f?postPublishedType=repub) I built a custom **Active Response Suite** in Python to enhance standard DLP auditing. **Main Logic:** 1. **File Audit:** Instant detection of PII using **Regex + Luhn’s Algorithm**. 2. **Network Filter:** Hard-blocks exfiltration to unauthorized IPs; auto-encrypts traffic to whitelisted destinations. 3. **USB Protection:** Scans and encrypts sensitive files on removable media upon mounting.
The April 2026 KB5083769 security update breaks third-party backup applications from multiple vendors on systems running Windows 11 24H2 and 25H2. [...]
A Brazilian tech firm that specializes in protecting networks from distributed denial-of-service (DDoS) attacks has been enabling a botnet responsible for an extended campaign of massive DDoS attacks against other network operators in Brazil, KrebsOnSecurity has learned. The firm’s chief executive says the malicious activity resulted from a security breach and was likely the work of a competitor trying to tarnish his company’s public image. An Archer AX21 router from TP-Link. Image: tp-link.com. For the past several years, security experts have tracked a series of massive DDoS attacks originating from Brazil and solely targeting Brazilian ISPs. Until recently, it was less than clear who or what was behind these digital sieges. That changed earlier this month when a trusted source who asked to remain anonymous shared a curious file archive that was exposed in an open directory online. The exposed archive contained several Portuguese-language malicious programs written in Python. It also included the private SSH authentication keys belonging to the CEO of Huge Networks , a Brazilian ISP that primarily offers DDoS protection to other Brazilian network operators. Founded in Miami, Fla. in 2014, Huge Networks’s operations are centered in Brazil. The company originated from protecting game servers against DDoS attacks and evolved into an ISP-focused DDoS mitigation provider. It does not appear in any public abuse complaints and is not associated with any known
Hey r/cybersecurity 👋 We're [Flare.io](http://Flare.io) and we’re excited to host an AMA with myself (Eric), Olivier u/obilodeau (Principal Cybersecurity Researcher), Tammy \[u/CTIQueen\] (Senior Threat Intelligence Researcher), and Estelle u/Puzzleheaded_End4024 (Threat Intelligence Researcher). What we've been working on: • DPRK IT workers: We published research earlier this year on North Korean IT workers infiltrating Western companies. • Infostealers: We've published extensive research on how infostealer logs fuel the cybercrime economy, from Telegram markets to credential stuffing pipelines to initial access brokerage. Including our 2026 State of Enterprise Infostealer Identity Exposure report. • Flare academy: Free trainings for practitioners and students on topics like identity security, ransomware, and cybercrime, and the Flare Academy Discord community. We're happy to talk about: • Cybercrime ecosystems: infostealers, initial access brokers, Telegram markets, dark web forums • Career advice: breaking in, moving up, specializing, or pivoting within cybersecurity • Research methodology: how we scope, conduct, and publish cybercrime research • And more!
When a new asset goes live, attackers start scanning within minutes. Sprocket Security shows how automated attacks move from discovery to compromise in under 24 hours. [...]
While more than two-thirds of human-generated TLS traffic to Cloudflare is already protected by post-quantum cryptography, the world of site-to-site networking has been a different story. For years, the IPsec community remained caught between the high bar of Internet-scale interoperability and the niche requirements of specialized hardware. That gap is now closing. Earlier this month, we announced that Cloudflare has moved its target for full post-quantum security forward to 2029 , spurred by several recent advances in quantum computing. To advance that goal, we’ve made post-quantum encryption in Cloudflare IPsec generally available. Using the new IETF draft for hybrid ML-KEM ( FIPS 203 ), we’ve successfully tested interoperability with branch connectors from Fortinet and Cisco — meaning you can start protecting your wide-area network (WAN) against harvest-now-decrypt-later attacks today using hardware you already have. This post explains how we implemented the new hybrid IPsec handshake, why it took four years longer to land than its TLS counterpart, and how the industry is finally consolidating around a standard that works at Internet scale. Cloudflare IPsec Cloudflare IPsec is a WAN Network-as-a-Service that replaces leg
The internet is noisy this week. We are seeing some wild new tactics, like people using fake cell towers to send scam texts, while some developers are accidentally downloading tools that peek into their private files during a simple install. It is definitely a busy time to be online. Security is always a moving target. Millions of servers are currently sitting online without any passwords, and
An exploit has been published for a local privilege escalation vulnerability dubbed "Copy Fail" that impacts Linux kernels released since 2017, allowing an unprivileged local attacker to gain root permissions. [...]
Coding agents are great at building software. But to deploy to production they need three things from the cloud they want to host their app — an account, a way to pay, and an API token. Until now these have been tasks that humans handle directly. Increasingly, agents handle them on the user’s behalf. The agent needs to perform all the tasks a human customer can. They’re given higher-order problems to solve and choose to use Cloudflare and call Cloudflare APIs. Starting today, agents can provision Cloudflare on behalf of their users. They can create a Cloudflare account, start a paid subscription, register a domain, and get back an API token to deploy code right away. Humans can be in the loop to grant permission and must accept Cloudflare's terms of service, but no human steps are otherwise required from start to finish. There’s no need to go to the dashboard, copy and paste API tokens, or enter credit card details. Without any extra setup, agents have everything they need to deploy a new production application in one shot. And with Cloudflare’s Code Mode MCP server and Agent Skills , they’re even better at it. This all works via a new protocol that we’ve co-designed with Stripe as part of the launch of Stripe Projects . We’re excited to launch this new partnership with Stripe, and also to offer $100,000 in Cloudflare credits to all new startups who incorporate using Stripe Atlas . But this new protocol also makes it possible for any platform with signed-in users to integrate with Cloudflare in the same way Stripe does, with zero friction for the end user. How it works: zero to production without any setup or manual steps
Cybersecurity researchers have disclosed details of a stealthy Python-based backdoor framework called DEEP#DOOR that comes with capabilities to establish persistent access and harvest a wide range of sensitive information from compromised hosts. "The intrusion chain begins with execution of a batch script ('install_obf.bat') that disables Windows security controls, dynamically extracts an
The critical CVE-2026-41940 authentication bypass vulnerability in cPanel, WHM, and WP Squared is being actively exploited in the wild and has been leveraged in attempts since late February. [...]
Turns out the real problem is not AI but staff still clicking on dodgy emails from 'IT support' Nearly half of UK businesses are still getting breached, and in many cases, the attacker's big breakthrough is an employee clicking "sure, why not" on a fake login page.…
Intro A sophisticated, high-resilience malicious campaign was identified by Atos Threat Research Center (TRC) in March 2026. This operation specifically targets the high-privilege professional accounts of enterprise administrators, DevOps engineers, and security analysts by impersonating administrative utilities they rely on for daily operations. By integrating Search Engine Order (SEO)
A joint international operation involving U.S. and Chinese authorities arrested at least 276 suspects and shut down nine cryptocurrency investment fraud centers. [...]
What type of 'C2 on a sleep cycle' do they leave behind? Novel Chinese spy group found in critical networks in Poland, Asia
Just in time for the Trump-Xi summit Exclusive A novel China-linked threat group infiltrated more than a dozen critical networks in Poland, Asian countries, and possibly beyond, beginning in December 2024 and with activity uncovered as recently as this month.…
Emergency patches out now for those managing the millions of domains assumed to be affected Emergency patches are available for a critical vulnerability in cPanel and WHM that allows attackers to bypass authentication and gain root access to servers managed using it.…
Spyware appears to have captured everything from intimate photos to private messages from the smartphone of European celebrity. They were publicly accessible until a researcher flagged the exposure.
Investigation finds no single cause for soldiers falling ill, just bad bolts, cold air, and apparently the soldiers themselves Britain's notorious Ajax armored vehicles are being accepted back from the manufacturer after investigations found no single cause for the symptoms plaguing crews, meaning soldiers will need to grin and bear it.…
Great idea, guys. Let's keep all of the data in an Excel file with weak password protection PWNED Welcome, once again, to PWNED, the weekly column where we recount the adventures of IT explorers who found their own pile of quicksand and then jumped right into it. This week's story involves keeping sensitive information in a very vulnerable place and then not protecting it adequately.…
HexDig 1.0.0 a lightweight binwalk alternative working both on Windows and Linux, written in C++, give it a try!
Google has addressed a maximum severity security flaw in Gemini CLI -- the "@google/gemini-cli" npm package and the "google-github-actions/run-gemini-cli" GitHub Actions workflow -- that could have allowed attackers to execute arbitrary commands on host systems. "The vulnerability allowed an unprivileged external attacker to force their own malicious content to load as Gemini configuration,"
Wednesday, April 29
Multiple official SAP npm packages were compromised in what is believed to be a TeamPCP supply-chain attack to steal credentials and authentication tokens from developers' systems. [...]
The Quick Page/Post Redirect plugin, installed on more than 70,000 WordPress sites, had a backdoor added five years ago that allows injecting arbitrary code into users' sites. [...]
What Mythos Means for Penetration Testing as a Service When Anthropic announced the Claude Mythos Preview, the reaction from the security community was immediate. We’re not talking about the next best model. This model is such a leap forward and so capable at finding and exploiting vulnerabilities that Anthropic deemed it too dangerous to release […] The post What GigaOm and Synack Got Right About AI Pentesting appeared first on Synack .
ORNL says portable detector kit can separate real GPS signals from fake ones even at equal strength GPS spoofing, which sends fake satellite-like signals, and GPS jamming, which drowns receivers in noise, are increasingly serious problems. Researchers at Oak Ridge National Laboratory in Tennessee have created what they say is the most effective system yet for detecting GPS interference, which could help blunt such attacks.…
Microsoft's patch for a 0-day exploited by Russian spies fell short. Another Windows flaw is under attack
Second try's a charm? Microsoft and the US Cybersecurity and Infrastructure Security Agency (CISA) warned that attackers are exploiting a zero-click Windows flaw that can expose sensitive information on vulnerable systems.…
Microsoft readies the axe once again for yesterday's security Microsoft has warned users still clinging to legacy TLS versions that the end is nigh for TLS 1.0 and 1.1 on POP3 and IMAP4 connections to Exchange Online.…
As we commonly know in appsec, not every vulnerability, even if critical 10 is relevant. This is a take from my buddy Brian Vermeer at Snyk, he's a Java Champion and offers his opinion as a developer to the Thymeleaf vulnerability [CVE-2026-40478](https://security.snyk.io/vuln/SNYK-JAVA-ORGTHYMELEAF-16078379)
GrassMarlin leaks sensitive information, provided your targeting phishing skills are sharp enough The Cybersecurity and Infrastructure Security Agency (CISA) is warning anyone who uses GrassMarlin, a tool developed by the National Security Agency (NSA), about a new vulnerability that attackers can use to snoop on sensitive information.…
Cybersecurity researchers have discovered malicious code in an npm package after a malicious package as a dependency to the project by Anthropic's Claude Opus large language model (LLM). The package in question is "@validate-sdk/v2," which is listed on npm as a utility software development kit (SDK) for hashing, validation, encoding/decoding, and secure random generation. However, its real
A newly analyzed Go-based macOS remote access trojan (RAT), internally named Minirat, has surfaced in the wild using anti-VM checks, LaunchAgent persistence, and AES-encrypted command and control (C2) configuration to maintain stealthy, long-term access on victim endpoints. According to [SafeDep](https://safedep.io/malicious-velora-dex-sdk-npm-compromised-rat/), the initial infection vector was a malicious npm package (velora-dex-sdk) that dropped the Go-based macOS RAT onto developer endpoints.
GitHub: Zounds, a genuinely helpful AI-assisted bug report that isn't total slop! Here, Wiz, take this wad of cash
Claude ploughs through months of work in rapid time, helps Wiz researchers nab lucrative award Wiz researchers are set for a tidy payday thanks to their discovery of a high-severity flaw in GitHub's git infrastructure that handed remote attackers full read/write access to private GitHub repositories using a single command.…
Every security team has a version of the same story. The quarter ends with hundreds of vulnerabilities closed. The dashboards are bursting with green. Then someone in a leadership meeting asks: "So, are we actually safer now?" Crickets. The room goes quiet because an honest answer requires context – which is something that patch counts and CVSS scores were never designed to provide. Exposure
LibAFL is all the rage in the fuzzing community these days, especially with LLVM’s libFuzzer being placed in maintenance mode . Written in Rust, LibAFL claims improved performance, modularity, state-of-the-art fuzzing techniques, and libFuzzer compatibility . For these reasons, I set out to add LibAFL support to Ruzzy , our coverage-guided fuzzer for pure Ruby code and Ruby C extensions. This gives Ruby developers and security researchers access to a more advanced and actively maintained fuzzing engine without changing how they write their fuzzing harnesses. Ruzzy was originally built on top of LLVM’s libFuzzer, so using LibAFL’s compatibility layer should be easy enough. However, digging around in the internals of complex systems is never quite as simple as it seems. In this post, I will investigate some of the deep plumbing inside these fuzzing engines, take a detour into executable and linkable format (ELF) files, and ultimately add LibAFL support to Ruzzy. Building with libafl_libfuzzer Ruzzy currently supports Linux, so I use a Dockerfile for development and for production fuzzing campaigns. To that end, using a similar Dockerfile for LibAFL support is the simplest integration point. LibAFL provides excellent documentation a
In yet another instance of threat actors quickly jumping on the exploitation bandwagon, a newly disclosed critical security flaw in BerriAI's LiteLLM Python package has come under active exploitation in the wild within 36 hours of the bug becoming public knowledge. The vulnerability, tracked as CVE-2026-42208 (CVSS score: 9.3), is an SQL injection that could be exploited to modify the underlying
Today, we're launching Project Swarm — a research initiative that opens the GreyNoise deception platform to the global security community. Project Swarm transforms GreyNoise from a proprietary sensor network into a collective intelligence platform.
Tuesday, April 28
CREST Helps Raise the Bar for the Researchers Behind Your Pentest When a cybersecurity company tells you its testers are vetted, what does that actually mean? Most of the time, it means the company ran its own screening, trusted its own judgment, and hoped you’d trust it too. That works, right up until the pentest […] The post What CREST Means for Your Next Synack Engagement appeared first on Synack .
Attackers are exploiting a security gap in U.S. businesses. Fake Microsoft, Adobe, and OneDrive pages deliver RMM software instead of payloads, giving attackers direct access to the environment. Because these tools are widely used across enterprises, attackers can establish access before activity is flagged as malicious. Combined with trusted or compromised infrastructure, this delays detection and increases attacker dwell time. The analysis session showing how attackers gain remote access through a fake Microsoft Store page delivering an RMM installer disguised as Adobe software: [https://app.any.run/tasks/e072ae4e-214c-4039-957d-7c0cbe682da8/](https://app.any.run/tasks/e072ae4e-214c-4039-957d-7c0cbe682da8/) Full article: [https://any.run/cybersecurity-blog/rmm-blind-spot-for-cisos/](https://any.run/cybersecurity-blog/rmm-blind-spot-for-cisos/) https://preview.redd.it/8p0wbleb7zxg1.png?width=2048&format=png&auto=webp&s=a58037806908430aa3ccc65908a072e00089e443
Cybersecurity researchers have disclosed details of a critical security vulnerability impacting GitHub.com and GitHub Enterprise Server that could allow an authenticated user to obtain remote code execution with a single "git push" command. The flaw, tracked as CVE-2026-3854 (CVSS score: 8.7), is a case of command injection that could allow an attacker with push access to a repository to achieve
The war in Iran has drawn attention to arrests in the United Arab Emirates over online content, but the legal framework behind that enforcement has existed for years.
A cybercrime group of Brazilian origin has resurfaced after more than three years to orchestrate a campaign that targets Minecraft players with a new stealer called LofyStealer (aka GrabBot). "The malware disguises itself as a Minecraft hack called 'Slinky,'" Brazil-based cybersecurity company ZenoX said in a technical report. "It uses the official game icon to induce voluntary execution,
ByteToBreach have breached Ikeja Electric, encrypting 50+ hosts, disrupting systems, and taking multiple subdomains offline. The actor also have stolen customer, employee, and business databases, source code, Active Directory data with offline cracked passwords, and impacted metering platforms linked to several vendors. Threat actor: ByteToBreach Sector: Energy / Utilities Data type: Customer records, employee data, business databases, source code, Active Directory credentials Observed: Apr 28, 2026 Sources: [https://x.com/H4ckmanac/status/2049126582694875608](https://x.com/H4ckmanac/status/2049126582694875608) [https://x.com/CyhawkAfrica/status/2049109369522934179](https://x.com/CyhawkAfrica/status/2049109369522934179) [https://darkforums.su/Thread-NG-Ikeja-Electric-Databases-Ransomware](https://darkforums.su/Thread-NG-Ikeja-Electric-Databases-Ransomware) https://preview.redd.it/5wua149b7yxg1.png?width=2503&format=png&auto=webp&s=133a682cd6ee178877db97f9cb59f7c60d3d8cc8
**Summary:** I’m disclosing a full-chain CVSS 10.0 RCE affecting Microsoft Semantic Kernel (.NET v1.74) and the new Agent Framework 1.0. **The Timeline & Conflict:** \> \* **March 24:** Initial disclosure sent to MSRC with PoC. * **April 8:** MSRC closed the case as "Developer Error / Configuration Issue." * **The Reality:** Despite the rejection, Microsoft silently merged mitigations in PRs #13683 and #13702 without assigning a CVE. This results in a "False Green" for enterprise SCA tools (Snyk/Checkmarx/Dependabot) while the bypasses remain functional. **Technical Scope:** * **Architectural Trust Gap (CWE-1039):** Auto-invocation logic treats non-deterministic LLM output as a high-privilege system coordinator without a sandbox boundary. * **6 Day-Zero Bypasses:** Discovery of Type Confusion and Unicode homoglyphs that defeat the "hardened" baseline in the April 2026 releases. * **Versioning:** Persistence confirmed from .NET v1.7x through the Agent Framework 1.0 re-baseline. Full paper, .cast exploit recordings, and a production-ready C# remediation filter are available at the link.
AI agents may soon be buying your stuff for you. The FIDO Alliance has teamed up with Google and Mastercard to try to ensure that shopping in the near future isn't a complete disaster.
In the first quarter of 2026, government-directed shutdowns figured prominently, with prolonged Internet blackouts in both Uganda and Iran, a stark contrast to the lack of observed government-directed shutdowns in the same quarter a year prior. This quarter, we also observed a number of Internet disruptions caused by power outages , including three separate collapses of Cuba's national electrical grid. Military action continued to disrupt connectivity in Ukraine and also impacted hyperscaler cloud infrastructure in the Middle East. Severe weather knocked out Internet connectivity in Portugal, while cable damage disrupted connectivity in the Republic of Congo. A technical problem hit Verizon Wireless in the United States, and unknown issues briefly disrupted connectivity for customers of providers in Guinea and the United Kingdom. This post is intended as a summary overview of observed and confirmed disruptions and is not an exhaustive or complete list of issues that have occurred during the quarter. A larger list of detected traffic anomalies is available in the Cloudflare Radar Outage Center . Note that both bytes-based and request-based traffic graphs are used within this post to illustrate the impact of the observed disruptions, with the choice of metric generally made based on which better illustrates the impact of the disruption. Government-directed shutdowns Uganda In advance of the January 15 presidentia
SIEM is not enough. Classical DFIR is not the full answer either. And “better logging” is too weak a frame. The real gap is evidentiary continuity in modern, cloud-heavy, application-driven environments.
After i updated it i closed it and a white screen with a logo like this https://preview.redd.it/uu1nklpdjwxg1.png?width=270&format=png&auto=webp&s=00db4e765f7348eb8dd29c42df79ae988d11cabf thats next to the file name popped up, it was instant so im not sure if its malware and i have super bad anxiety and not sure if this is something to do with the download setup modrinth uses or what, ik this is pretty specific so if no one can help its completly fine. Not sure if this is off topic and im freaking out and dont know what community to post this in.
On paper, the vast majority of crisis plans look reasonable, actionable and complete. Once the rubber hits the road, however, chaos emerges quickly. This is where tabletop simulations come into play. Tabletops Exercises (TTX) simulate real-world crises in a controlled environment. They introduce time pressure, incomplete information, and uncertainty, forcing teams to adapt and revealing whether plans hold up under stress. Over the years we have facilitated many tabletop exercises, ranging from small teams of IT teams to full executive crisis staff. The scenarios vary, but the findings are remarkably consistent. Here are some of the most important learnings from the tabletop exercises and real incidents
Presently sponsored by: Report URI: Guarding you from rogue JavaScript! Don’t get pwned; get real-time alerts & prevent breaches #SecureYourSite This is so "peak 2026" - writing an equality policy to ensure people treat our AI bot with the same respect as they do their human counterparts. It's intentionally a bit tongue-in-cheek, but it's there for a purpose: we simply don't have the capacity to deal with every request we get, and we need Bruce to be the coalface of support. I did wonder, when having ChatGPT create this, whether there's some deeper psychology behind the importance of interacting politely with bots, or indeed whether there will ever be an actual (like, serious) standard or law around treating bots with respect. Has this been in a movie somewhere? Let me know, but for now, I'll drop the (slightly revised) policy below, just for the laughs 藍
Monday, April 27
The suspected shooter at Saturday night’s White House Correspondents’ Dinner faces three felony charges. He remains in custody following Monday’s hearing.
Kaspersky recently disclosed PhantomRPC, a privilege escalation technique affecting all Windows versions (tested on Server 2022/2025)
The core issue: Windows RPC runtime doesn't verify whether the server a high-privileged client connects to is legitimate. If a target RPC server is unavailable, an attacker with SeImpersonatePrivilege can spin up a fake RPC server mimicking the same endpoint, wait for a SYSTEM-level client to connect, then call RpcImpersonateClient to escalate privileges. Five confirmed escalation paths: \- gpupdate /force → SYSTEM (coerces Group Policy service) \- Microsoft Edge launch → Administrator (no coercion needed) \- WDI background service → SYSTEM (fires every 5–15 min automatically) \- ipconfig + disabled DHCP → Administrator \- w32tm.exe → Administrator via non-existent named pipe Microsoft assessed this as moderate severity, issued no CVE, and has no patch planned — justification being that SeImpersonatePrivilege is a prerequisite. Questions for the community: 1. Are you monitoring for RPC\_S\_SERVER\_UNAVAILABLE (Event ID 1 via ETW) in your environment? 2. Any Sigma/Defender rules already written for this? 3. Do you agree with Microsoft's severity assessment given how common SeImpersonatePrivilege is on IIS/SQL servers? Kaspersky's full write-up + PoC: [https://securelist.com/phantomrpc-rpc-vulnerability/119428/](https://securelist.com/phantomrpc-rpc-vulnerability/119428/)
Ransomware is getting weird, folks. A new report says attacks jumped 22 percent in Q1 2026, but the real twist is how messy things have become. You still have big names like Akira and Qilin, but newer groups like The Gentlemen are exploding in activity, while shady leak sites are posting possibly fake “breaches” just to scare companies into paying. Even wilder, groups like ShinyHunters are skipping encryption entirely and just stealing data through compromised logins and SaaS apps. It is less about locking files now and more about leverage, and honestly, that might be harder to defend against.
To reduce the amount of noise from questions, we have disabled self-posts in favor of a unified questions thread every week. Feel free to ask any question about reverse engineering here. If your question is about how to use a specific tool, or is specific to some particular target, you will have better luck on the [Reverse Engineering StackExchange](http://reverseengineering.stackexchange.com/). See also /r/AskReverseEngineering.
Sunday, April 26
A 31-year-old engineer and self-described indie game developer is suspected of firing shots at the annual event attended by President Donald Trump, high-profile media figures, and US government officials.
Saturday, April 25
We have been toying with evading EDRs at Vulnetic with moderate success, so this time we wanted to put it against an in-house AI SOC. The idea is that the defense gets streamed logs on the network and can make decisions like quarantining or blocking potential attackers while also sifting through logs being streamed. This was with the last gen Anthropic models, so we will be redoing these tests with the newest gen from OpenAI and Anthropic shortly as in initial testing they seem to be 15-20% better already. I think defense is lagging behind offense and there will be a come to Jesus moment where open weight models in a decent harness can evade modern SIEMs / detection mechanisms and when that happens there will be a problem. With regards to AI, it comes down to proper access control and so the fundamentals of networking and defense in depth will be vital in the future to fight against these AI threats. Happy to answer any questions and always looking for cool experiments to try!
Plus: Spy firms tap into a global telecom weakness to track targets, 500,000 UK health records go up for sale on Alibaba, Apple patches a revealing notification bug, and more.
Friday, April 24
Hey guys, I would like to share a project that I have been working for the past few weeks. I came across this project: [https://lots-project.com](https://lots-project.com/), and I thought why not develop a fully feature C2 framework that abuses these sites. The framework is named Phoenix, and is currently supporting Disc0rd and Telegr4m (Reddit broke down due to the latest DM update) for communication. These are a fraction of the available commands : ✅ /browser\_dump ✅ /keylog ✅ /recaudio ✅ /screenshot ✅ /webcam\_snap ✅ /stream\_webcam ✅ /stream\_desktop ✅ /bypass\_uac ✅ /get\_system I released the whole project on GitHub if you would like to check it out: [https://github.com/xM0kht4r/Phoenix-Framework](https://github.com/xM0kht4r/Phoenix-Framework) But why? I enjoy malware, and writing a custom C2 is something I wanted to do for a long time. I would like to also clarify that I made this project for educational and research purposes only. I have no intent of selling or distributing malware hence why I’m sharing my work with other fellow hacking enthusiasts. The github repos serve as a reference for future malware research opportunities. I know that malware development is a gray area, but you can’t defend against something if you don’t understand how it works in depth. I would like to also mention that I’m still a beginner, and this project helped me improve my Rust skills. I’m looking forward to hearing your feedback!
I wrote a custom jellyfin addon to get back access to ssh