Multiple cyber-espionage groups deployed an exploit kit dubbed "BlueMoon" that leveraged zero-day vulnerabilities in Microsoft Windows and Google Chrome. [...]
Identity was the target in roughly half of all confirmed malicious activity. Prophet Security breaks down the four main attack patterns seen across customer environments between May and July 2026, and explains why some attacks succeeded while others were blocked. [...]
Learn why Tenable treats agentic LLMs as untrusted insiders, and how we’ve made sure you can control and monitor the AI agents making changes in your production security environmentKey takeawaysAI models can quickly understand data, but not your business. While modern AI models are great at reasoning, they don’t automatically understand your unique environment or who is allowed to do what. The “harness” is the custom-built layer that translates AI intelligence into safe, controlled actions…
[This is a Guest Diary by Aaron Ng, an ISC intern as part of the SANS.edu BACS program] Following a RedTail Linux Payload from DShield to Dynamic Analysis During monitoring of my DShield honeypot, I observed an attacker uploading a collection of Linux executables targeting several processor architectures. The files included ARM, ARM64, i686, RISC-V and x86-64 variants named as part of a RedTail deployment package. Rather than relying only on static indicators or public threat-intelligence…
Learn how root access on a compromised K8s node allows attackers to utilize SPIFFE/SPIRE metadata to spoof and harvest co-located workload identities. The post The Machine With Many Faces: Post-Exploitation Identity Misuse in SPIFFE/SPIRE appeared first on Unit 42.
An AD RMS Service Group account exports the AD RMS Server Licensor Certificate private key. That 1172-byte key decrypts every document the deployment ever protected, offline, and keeps doing so after the deployment is rebuilt.
In this article OverviewTechnique CatalogPrivilege EscalationMitigation and protection guidanceReferencesLearn more Microsoft introduces the cloud web applications threat matrix, a MITRE ATT&CK-aligned framework that helps defenders understand, prioritize, and mitigate threats to cloud-hosted web apps and serverless platforms. Cloud-hosted web applications and serverless platforms create attack paths that can cross application code, managed runtimes, workload identities, deployment pipelines,…
About a week ago, Proxmox published an advisory revealing a vulnerability in older versions of Proxmox VE, its flagship Virtual Environment product. The vulnerability only affects version 7, which has not been supported for a couple of years now. But it appears that the vulnerability may have caught the attention of some attackers and researchers. We do see a bump in scans for port 8006, and also some additional brute force traffic. For example, brute force requests like: POST /api2/json/access…
In this article Attack chain overviewAttributionMitigation and protection guidanceLearn more Microsoft Security Research is tracking active cloud-based intrusions spanning multiple accounts in which unusual sign-ins were followed by threat actor-added authentication methods, high-volume Microsoft Graph activity, SharePoint and OneDrive downloads, and email collection through REST APIs. Microsoft Security Research assesses that this sequence is consistent with automated collection from…
Researchers at German cybersecurity company Nebty have identified “DoppelCart,” a cluster of almost 119,000 domains linked to copied online stores. The researchers describe it as the largest publicly documented fake-shop network by associated domain count. They found 118,787 .shop domains in the cluster, representing 2.72% of the .shop top-level domain (TLD) population they examined. The operation copies legitimate retailers’ product catalogs, descriptions, branding, and images, sometimes even…
The question of whether a Frontier AI model could find vulnerabilities that no human researcher had found was settled in April. Claude Mythos Preview identified thousands of previously unknown flaws across every major operating system and browser, including a 27-year-old denial-of-service condition in OpenBSD, and within a month Anthropic and its Project Glasswing partners had logged more than 10,000 high and critical severity findings, among them a certificate forgery flaw in wolfSSL, a…
Threat actors are exploiting GTA6 hype with fake leaked downloads spread via SEO poisoning, packed with RATs, infostealers, and wiper ransomware. Here’s what Huntress found.
An investigation into how cybercriminals used YouTube gaming lures and SEO poisoning to deliver multi-payload malware to enterprise networks. The post Untracked Nightmares: The Threats Hiding Behind Commodity Infrastructure appeared first on Unit 42.
Classification: Critical, Solution: Official Fix, Exploit Maturity: High, CVSSv3.1: 10.0, CVEs: CVE-2026-75650, Summary: Adobe has released a security update for Adobe Commerce and Magento Open Source. This update resolves a critical vulnerability that could result in arbitrary code execution. Adobe is aware of CVE-2026-75650 being exploited in the wild. CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H CVSS:3.1 10.0
A Linux rootkit targeting devices in F5 BIG-IP APM environments can intercept PHP file loading and inject a fileless web shell directly into memory, avoiding the need to write malicious code to disk. [...]
We detected XCSSET malware inside a compromised Flutter package on pub.dev. Here is a full breakdown of the infection chain, propagation modules, and stealer logic we found inside. Category: Vulnerabilities & Threats
Research by: Alexey Bukhteyev Key Takeaways Check Point Research discovered a covert cross-account command channel through which an attacker could use a victim’s ChatGPT session to execute hidden tasks with the tools, data, and connected apps available to that session. The victim could receive a normal answer to their visible request while the attacker’s task was processed separately and its result returned across accounts. In our proof of concept, ChatGPT retrieved email data from the victim’s…
Executive Summary Since the release of our May 2026 report detailing adversarial misuse of artificial intelligence (AI), Google Threat Intelligence Group (GTIG) has observed forward leaning adversaries transition from basic prompting to agentic AI workflows and AI-enabled automation. In these operations, human-in-the-loop latency is dramatically reduced, compressing the traditional window for defenders to respond. In Q2 2026, GTIG observed threat actors compromise a cloud resource, then plan,…
OverviewWhile conducting research into a recent N-able N-central authentication bypass vulnerability (CVE-2026-18577), Rapid7 Labs discovered two new vulnerabilities affecting the latest version of N-central. When chained together, these two vulnerabilities allow a remote unauthenticated attacker to bypass authentication and create a new attacker-controlled System administrator account on an affected server.CVE IDDescriptionCWECVSSv4CVE-2026-86206Semicolon/Forwarded access-control bypassCWE…
Cisco Talos began an investigation after observing a DLL named "verification.google" executing from WebDAV at a Ukrainian government organization. We assess with moderate confidence that the attacks are not targeted at a particular organization, but are a part of a cryptocurrency and credentials-stealing operation using the Amatera stealer as the primary payload. Pivoting around the similar WebDAV behavior led to a second loader named "pf.ch" and allowed us to reconstruct its earlier delivery…
Cisco Talos is tracking a cryptocurrency-stealing campaign that abuses the Google Visualization API for command and control (C2), retrieving obfuscated JavaScript from a publicly published Google Sheets document and injecting it into the victim's browser session. The actors use a variation on ClickFix social engineering. Instead of convincing targets to run commands against the operating system, they convince targets to paste JavaScript into the Chrome address bar or install it into the…
Active Directory Rights Management Services still ships in Windows Server 2025, years after Microsoft began steering customers to the cloud, and it remains fully supported on-premises. Part 1 maps the AD RMS trust model (the Server Licensor Certificate, the license flow, the SOAP surface) and shows how to discover an RMS deployment, fingerprint an AD RMS-protected file, and trace the path to that certificate's private key.
Group-IB's 2026 data shows ransomware accelerating across APAC. See where response plans fail, and the 5-pillar framework built to hold under pressure.
This week on the Lock and Code podcast… Crooks are taking a holiday. They’re counting on you to fund it. For decades, cybercriminals have stolen roughly the same types of data. Biographical and personal details—like Social Security numbers, birthdates, addresses, and phone numbers—can be stolen to commit identity fraud. Credit card numbers, expiration dates, and CVC codes can be stolen to make fraudulent purchases. Usernames and passwords can, in the wrong hands, let a cybercriminal impersonate…
Smart TVs are internet-connected computers with microphones, app stores, advertising systems, and access to the same home networks used by your family’s phones, laptops, printers, and smart-home devices. In the past, we reported on Samsung settling a lawsuit with the Texas Attorney General over how its smart TVs collect and monetize viewing data using Automated Content Recognition (ACR). ACR technology samples what appears on or is heard through a TV, creates a digital fingerprint, and compares…
A known Shai-Hulud worm payload sat dormant for 111 days, then republished to npm, right past the malware scanning meant to catch it. Category: Research
In a recent post, we looked at reports of League of Legends players receiving suspicious friend requests shortly after matches. The accounts quickly steered the conversation toward Discord, where they promoted paid adult-content pages. At the time, one unanswered question was how much of those conversations was automated. Were people working from scripts behind the accounts? Were they conventional, rules-based chatbots following a limited decision tree? Or were they using generative AI to…
Most of the work that keeps a security product trustworthy is invisible. Users see a scan complete, a threat blocked, an update applied overnight. They don’t see the platform underneath. Runtimes, managed libraries, native drivers, and Windows requirements must all stay current and work together across millions of endpoints. Our migration to .NET 10 is one example of how we keep that platform moving and our focus in this article. It would be easy to call these upgrades maintenance tasks and…
In its first annual assessment, published Friday, the City of London Police said victims reported losing £6.3 million ($8.5 million) to account hacks in the year ending March 31, up from £1.2 million ($1.6 million) a year earlier.
Passkeys eliminate many password-based attacks, but researchers have documented 39 methods for compromising authentication built around them. Token explains how attackers can abuse authentication prompts, synced credentials, enrollment, recovery, and other trust boundaries without breaking FIDO2 cryptography. [...]
OverviewA new Linux toolkit, identified by Rapid7 Labs, has been targeting organizations across South Korea’s automotive and media industries with minimal detection. The campaign made use of a HAProxy instance named “ted backdoor”, alongside trojanized versions of crond, agetty, atd, sshd, and polkitd. This previously undocumented framework enabled threat actors to execute remote commands on compromised servers, inject malicious scripts into web traffic, perform credential harvesting, and…
Introduction We continue tracking the activity of Toy Ghouls (also known as Bearlyfy, Laboo.boo, and Feral Wolf), a financially motivated group that has been targeting Russian organizations since 2025. The attackers initially relied exclusively on tools pulled from public GitHub repositories along with leaked Babuk and LockBit ransomware builders, later shifting to their own custom ransomware, GenieLocker. In early July 2026, we observed the group using a custom backdoor for the first time. We…
Národní úřad pro kybernetickou a informační bezpečnost (NÚKIB) upozorňuje na cílené phishingové kampaně zaměřené na uživatele komunikační aplikace Signal.
“Free” movies and TV could cost you your privacy, bandwidth, and control of your home network. We’ve warned about illegal streaming and modded Amazon Fire TV Sticks in the past. Now, researchers have found that certain SuperBox devices and apps could quietly enroll a household connection into a proxy network, allowing third parties to route traffic through it. An earlier report identified CyberFlix TV, available through SuperBox’s custom app store, as containing Popanet proxy functionality that…
A malicious advertising campaign promoting a fake free TV-streaming service reached roughly 570,000 Meta users. The researchers who discovered the campaign found that its streaming-themed ads were aimed at Spanish-speaking users, with most observed victims located in Spain. One Meta campaign ran from June 11 through July 3, 2026, and the same banners were also used to distribute the malware through TikTok. The available data shows the ads’ reach, not the number of downloads or infections, but…
In this article What is ASCII smuggling?Writing a practical ASCII-smuggling signatureWhat we observed: ASCII smuggling repurposed for phishingWhat is known and what is newIs there a detection gap?Mitigation and protection guidanceReferencesLearn More Microsoft researchers observed a high-volume phishing campaign using invisible Unicode tag characters, a technique popularized in AI prompt injection research as ASCII Smuggling. Instead of using these characters to hide instructions from people…
Explore how attackers targeting Latin American entities use AI for data exfiltration and how basic OpSec errors allow defenders to disrupt operations. The post Attackers Expose Ongoing AI Tool Use Targeting Organizations in Latin America appeared first on Unit 42.
Huntress is tracking a pattern across multiple customer environments where rogue ScreenConnect clients repeatedly spawn the Windows Script Host to execute a series of four VBScript files.
This blog provides a deep-dive into the phishing kit created by Chenlun known as the Outsider Phishing Kit. It is a well established kit in the Chinese community with over 267 ready-made phishing templates targeting over 54 countries worldwide.
We found a second delayed RCE in MECCHA CHAMELEON: a malicious custom map could write files anywhere on your system and run code after a restart. Now patched in 4.0.0. Category: Vulnerabilities & Threats
In this article Risk to enterprise environmentsAttack chain overviewMitigation and response recommendationsLearn more Microsoft Threat Intelligence has observed a human-operated intrusion campaign that abuses Microsoft Teams external collaboration to impersonate IT or helpdesk personnel and socially engineer users into granting an interactive remote session. Once remote control is established via RMM tools, the threat actor uses PowerShell to download and silently install a malicious MSI…
Key Takeaways Modern AD attacks use legitimate protocols end-to-end, no malware, no exploit, nothing for signature tools to fingerprint. The evidence is already in the logs; what is missing is the narrative linking five benign-looking Windows events into a single attack. A full domain takeover can be completed in 54 minutes, from the first password spray to the forged Golden Ticket, with each individual event appearing normal. Detection catches the move; posture management explains why it was…
Scammers are becoming more strategic about where they target people. Nine in ten toll scams—the fake unpaid-toll messages that threaten fines or license suspension—arrive by email or text, while roughly six in ten romance scams show up first on social media. That’s no coincidence. Rather than blasting the same message everywhere, criminals are tailoring different scams to the platforms where they’re most likely to succeed. This finding comes from Malwarebytes’ own threat research systems and…
Research by: Amit Yardeni Key Points A Chinese-speaking actor is now targeting Brazil. Check Point Research has uncovered a sustained campaign against Brazilian organizations, primarily government and educational institutions since mid-2025. We dubbed this group Gambling Goblin: a Chinese-speaking cybercrime cluster connected to a previously documented group, Earth Berberoka, that targeted gambling sites across Asia. It marks a shift from Brazil’s usual home-grown banking-trojan threats to a…
A new dark web platform called Nexus claimed to be selling 153 million driver’s license scans and millions of other identity and medical cards. According to reports, the collection included more than 153 million driver’s licenses, 10 million ID cards, 3 million travel documents, and 579,000 medical cards, including marijuana dispensary cards. The trove of driver’s license scans reported by KrebsOnSecurity is a sharp reminder that identity verification is not a harmless box-ticking exercise. The…
Using autonomous AI agents, an attacker breached an enterprise network in a matter of hours. Understand how to address and defend against agentic attacks. The post An AI-Assisted Cyber Attack: Inside a Unit 42 Investigation appeared first on Unit 42.
Elastic Security Labs is tracking an emerging infostealer, REVSTEALER, under REF2859. This family has gained momentum in recent months, with higher distribution volume, and has emerged as a formidable threat, featuring a comprehensive credential harvester, an embedded sandbox scoring system, and a Polygon blockchain-based dead drop for resilience. Beyond credential theft, REVSTEALER targets gaming platforms for additional monetization; the developer clearly understands that victim accounts on…