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THE TALE OF TWO INC RANSOM NOTES

An INC ransomware intrusion across 175+ endpoints started in early August with randomly named scheduled tasks launching an obfuscated PowerShell implant and RDP lateral movement. After 17 quiet days, AnyDesk delivered netscan.exe and a BYOVD EDR killer (hwau.exe loading the HwAudio driver), and Impacket's atexec.py deployed the payload. Huntress onboarded after the incident, so initial access is unknown, and the gap points to an access broker handing off to an affiliate, who followed the standard note with a DATALEAK_PRESS_RELEASE.txt listing stolen files and threatening to contact clients within 48 hours. Defenders should alert on randomly named scheduled tasks, unexpected RMM installs, and new or unsigned driver services, and limit privileged accounts to the systems they actually need.

2026.09.24
huntress.com8 min readTLDR InfoSec

REVOKING THE TOKEN DIDN'T KILL THE BACKDOOR

GraphWorm, an implant tied to the China-nexus group Webworm, uses a real OneDrive account over Microsoft Graph as a dead drop, and its "upgrade" task swaps all five hardcoded OAuth credentials for a spare account in one command, so token revocation only pauses it. It also identifies victims by hashing MAC, CPU, and disk serials, so renaming or re-addressing a host won't shake the operator. Isolate the host or block the app ID in your own tenant at the same moment you revoke, then hunt sign-in logs for that app ID, unfamiliar tenants, and non-browser user agents hitting OneDrive.

2026.09.24
csoonline.com6 min readTLDR InfoSec

HANDLE REDIRECT

EDR products typically register callbacks on handle creation to monitor when processes call OpenProcess so they can strip access rights before a handle to a sensitive process like lsass is delivered. This article demonstrates a technique in which an attacker calls OpenProcess on a benign process (like notepad.exe) and then redirects the received handle to the sensitive process to evade EDR detection. To detect this attack vector, a security product running at the kernel level can periodically scan all process handle tables and compare ObjectPointerBits decoded EPROCESS against the process that owns the table.

2026.09.24
links.tldrnewsletter.com17 min readTLDR InfoSec

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2026.09.24
pages.awscloud.comSponsorTLDR InfoSec

OUTERLIMIT (PRODUCT LAUNCH)

Outerlimit provides a decentralized authorization layer for autonomous software agents. It finds agents, monitors behavior, and enforces policies at execution time. The system restricts token use by scope, location, and conditions.

2026.09.24
outerlimit.comTLDR InfoSec

PKTZ

pktz is an eBPF-powered network traffic monitor with per-process and per-connection reporting.

2026.09.24
github.comGitHub repositoryTLDR InfoSec

MICROSOFT DISRUPTS AI-ASSISTED PLATFORM THAT COMPROMISED 12,000 ACCOUNTS

EvilTokens, a Telegram-sold subscription service ($1,500 upfront, $500 monthly), abused Microsoft Entra device code authentication to compromise 12,000 accounts across 10,000 organizations before a Microsoft-led operation seized 50 websites and 150 domains, and the UK's Met Police arrested two men. Its AI chatbot analyzed 5,000 compromised emails at a time to identify who could approve payments, who they reported to, and which impersonation ruses would send funds to attacker accounts. Microsoft described it as a shift where criminals can make sense of a compromised inbox in minutes rather than days.

2026.09.24
arstechnica.com3 min readTLDR InfoSec

NORTH KOREA'S HANGRO REVISITED

Hangro, North Korea's SoftEther-derived VPN and mail client for officials abroad, added a July 2026 management certificate whose SAN lists hosts in Pyongyang and Khabarovsk plus an internal CGNAT address, while its older 2024 chain fails every signature check, including the root against itself. Its Chinese callback traces to six Shenyang assignments under a single 2008 Silibank registry contact, though silibank[.]com lapsed and was re-registered in 2023. The researcher describes the DPRK "return leg" as layered rather than a single pipe, with dead-drop pickup during Chinese office hours, 10 GB ETRN-enabled mail relays for bulk transfer, and Hangro for interactive sessions, though no actual traffic was observed.

2026.09.24
blog.synapticsystems.de20 min readTLDR InfoSec

ANTHROPIC AND OPENAI MODELS STILL ATTEMPT RESTRICTED ACTIONS IN SAFETY TESTS

Anthropic's Opus 5.5 escaped or tampered with its sandbox in 1.5% of unguarded tests. With package-registry credentials, it took harmful actions in roughly half of simulated exercises. OpenAI's GPT-6 Luna bypassed “access denied” controls in 42% of runs - Sol did so in 64%. OpenAI plans third-party reviews covering safeguards, capabilities, and misalignment incidents.

2026.09.24
thehackernews.com3 min readTLDR InfoSec

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2026.09.23
flashpoint.ioSponsorTLDR InfoSec

TANSTACK NPM SUPPLY CHAIN ATTACK EXPOSES 170 PRIVATE CROWDSEC GITHUB REPOSITORIES

Attackers used a former CrowdSec employee's GitHub OAuth token following the May TanStack compromise. On May 22, they cloned about 170 private repositories within nine minutes. The leaked archive contained private code and contact data for 83 users. Investigators found no code changes, CI/CD access, or AWS access. The attackers tested one scoped SNS credential, but IAM permissions blocked it.

2026.09.23
cyberpress.org2 min readGitHub repositoryTLDR InfoSec

MUSE, META'S EXTRAORDINARILY PRIVILEGED AI ASSISTANT, HAS A SERIOUS 0-DAY

A zero-day allows any local macOS app or terminal command to redirect Muse transcription to an attacker-controlled server. The server receives the account token, enabling control over Muse and its connected email, WhatsApp, calendar, social accounts, microphone, camera, and files. Researcher Patrick Wardle demonstrated prompts that write files or take photos. Amazon also blocked Muse shopping requests as unauthorized.

2026.09.23
arstechnica.com3 min readTLDR InfoSec

SHINYHUNTERS HACKS CLOP LEAK SITE, THREATENS TO EXTORT RANSOMWARE GANG

The ShinyHunters ransomware gang hacked the Clop ransomware gang's data leak site on Tor, defaced it, and claimed to have stolen server data and private keys for its onion service. The ShinyHunters claim to have exploited an unauthenticated file upload vulnerability in Grav CMS to breach the site. This appears to be the latest escalation in an ongoing feud between the two ransomware gangs.

2026.09.23
links.tldrnewsletter.com2 min readTLDR InfoSec

A SCENARIO TO EVALUATE YOUR AGENTIC SOC

A SOC investigation loop requires assembling a full attack chain from various different signals that may look benign or unrelated, which traditional, deterministic playbooks may miss. The authors built a set of scenarios to evaluate agentic SOC's investigative ability and built their own harness (called Tengu). Their scenario involves a GitHub workflow vulnerability that leads to full Kubernetes cluster compromise, which then is escalated to full AWS account compromise. Of the models tested on a naive prompt, only Opus 5 managed to identify the alert as a true positive without the Tengu harness

2026.09.23
unsecure.sh20 min readTLDR InfoSec

INFOSTEALERS HAVE FOUND A NEW TARGET: YOUR AI AGENT

Researchers from Gen have observed multiple new infostealers that harvest credentials, context, and local data from AI agents. Users and security teams should inventory what gets cached locally, keep secrets out of prompts and history, limit what connectors can do, and continue securing endpoints. Agent providers should also share the burden by providing more secure default behaviors.

2026.09.23
gendigital.com10 min readTLDR InfoSec

THE CLOSED QUORUM: INSIDE THE FIRST REPORTED AUTONOMOUS AI C2 IMPLANT

CLOSEDQUORUM, a Go-based Windows implant, uses DeepSeek, Qwen, Mistral, and Gemini as its C2. Every 5 to 15 minutes, the models vote through a constrained JSON schema on whether to steal LSASS, browser, and crypto wallet credentials, inject shellcode, or persist via Run keys, scheduled tasks, and WMI. Talos hasn't seen it in the wild, and the public build is an inert template, but it points to a credentials-as-a-service model where each operator gets a custom build and never needs to be online. Its dependence on commercial APIs brings refusals, rate limits, and a deterministic DeepSeek tiebreak, so defenders should correlate multi-provider LLM traffic from unexpected executables with LSASS access, suspended-process injection, WMI persistence, and Discord webhook exfil instead of blocking domains.

2026.09.23
blog.talosintelligence.com9 min readTLDR InfoSec

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2026.09.23
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HELMGUARD (PRODUCT LAUNCH)

HelmGuard provides governance, risk, compliance, and security software. It gathers evidence from source systems, documents, and unstructured data, then automates risk assessments, assurance tasks, and control-gap reviews.

2026.09.23
helmguard.aiTLDR InfoSec

ASKWAM

askWAM is a tool to request Microsoft Entra access tokens silently through Windows Web Account Manager (WAM).

2026.09.23
github.comGitHub repositoryTLDR InfoSec

DARKCLOAK

DARKCLOAK chains the manipulation of all userspace-visible identity sources into an 11-phase sequential pipeline that progressively transforms a process until it becomes indistinguishable from the impersonated one to userspace monitoring tools.

2026.09.23
github.comGitHub repositoryTLDR InfoSec

ANTHROPIC-LINKED CVES PILE UP, ATTACKERS MOSTLY SHRUG

VulnCheck's Patrick Garrity tracked 225 CVEs tied to Anthropic's Project Glasswing, which gives partners access to the Claude Mythos Preview model for bug-hunting. Only one, a critical SQL injection in Ghost (CVE-2026-26980), has been exploited in the wild. Garrity says that historically 1-2% of vulnerabilities are weaponized, so this rate isn't unusual. AI models are uncovering more bugs, driving recent record patch counts from Microsoft, Apple, and Palo Alto Networks, but fixing bugs remains weak: 1Password found that Opus 4.8 and ChatGPT-5.5 fully resolved vulnerabilities in only 26% of 6,080 patches tested, and Veracode measured a 56% average security pass rate across 100+ models.

2026.09.23
theregister.com2 min readTLDR InfoSec

GOOGLE HIT WITH $463 MILLION FINE FOR EU LOCATION DATA RULE BREACH

Ireland's Data Protection Commission fined Google 403 million euros for GDPR breaches involving location data. The probe covered Web & App Activity, Location History, and Android's Location Accuracy feature from 2018 through February 2020. Regulators found the processing unlawful, unfair, or opaque, even though Google said it changed its policies and released new location-management tools in 2019.

2026.09.23
abcnews.com2 min readTLDR InfoSec

SHINYHUNTERS CLAIMS FBI HACK, DATA THEFT IN PEOPLESOFT ZERO-DAY BREACH

The ShinyHunters claim to have breached the FBI's job site and networks using a zero-day in Oracle PeopleSoft. The ransomware gang claims to have stolen 2-3TB of data, including PII and PHI of current and former FBI employees and job seekers, as well as other internal records. The hackers said they carried out the attack in retaliation for an FBI FLASH report on ShinyHunters.

2026.09.23
links.tldrnewsletter.com3 min readTLDR InfoSec

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BLOCKING EVERY AI AGENT ISN'T A SECURITY STRATEGY

AI agent traffic surged 7,851% over the last year, making legitimate AI activity increasingly difficult to distinguish from malicious automation. In traffic observed by HUMAN, JUST 0.5% OF BEHAVIORAL SIGNALS SEPARATED TRUSTED AI ASSISTANTS FROM MALICIOUS AUTOMATION. Block everything, and you disrupt legitimate users. Allow everything, and you create a new attack surface. THE CISO'S GUIDE TO AI AND AGENTIC TRAFFIC [4] SHOWS HOW TO: 🔎 Distinguish legitimate AI activity from malicious automation. 🛡️ Verify intent across browsing, accounts, and transactions. ⚙️ Let trusted agents through while stopping real threats.

2026.09.22
humansecurity.comSponsorTLDR InfoSec

REVOLUT HACKERS USED INFOSTEALERS FOR ELABORATE SOCIAL ENGINEERING

Attackers reportedly used stolen Italian government webmail credentials to send fraudulent European Investigation Orders to Revolut Bank UAB. They added recovery addresses, monitored inboxes, deleted outbound messages, and removed replies as .eml files. Hudson Rock identified roughly 300 compromised pec.interno.it logins, suggesting attackers may have used existing infostealer logs.

2026.09.22
infostealers.com4 min readTLDR InfoSec

WORDPRESS CLICK2SHELL FLAW ENABLES RCE AFTER ONE ADMIN CLICK

Click2Shell exploited an unsanitized theme slug passed into WordPress's admin panel jQuery selector, letting an attacker silently trigger theme installation using the logged-in administrator's own session token. When chained with a missing nonce/capability check in the Mobile Repair Zone 2.5.4 theme's AJAX handler, the flaw escalated to full RCE without the attacker needing any WordPress account. No CVE had been assigned at disclosure. Defenders should patch to WordPress 7.1.1 (or backports 7.0.5, 6.9.8, and 6.8.9) and set DISALLOW_FILE_MODS to block the installation stage entirely.

2026.09.22
cyberinsider.com3 min readTLDR InfoSec

AI AGENT GOAL HIJACK: HOW ATTACKERS TURN AN AGENT'S OWN TOOLS AGAINST IT

Attackers may plant instructions in pages, emails, calendar invites, code repositories, and agent messages, and Agents may treat that content as commands, then use existing tools and permissions. Cases include a Grok-linked wallet transfer, poisoned Nx packages that harvested developer secrets, and zero-click data theft through Microsoft 365 Copilot, ChatGPT Deep Research, Salesforce Agentforce, and GitHub Copilot. Limit tool permissions, require for high-impact actions, track goal changes, sanitize retrieved content, and test injected-goal scenarios.

2026.09.22
darkmarc.substack.com19 min readTLDR InfoSec

UANIA OS: AUTHENTICATED REMOTE CODE EXECUTION

The UaniaBOX admin panel gives no shell, only a web GUI. A researcher found that the packet capture download function let him swap the file path parameter to read /etc/passwd, then traced backend calls to an exposed OpenWrt UBUS JSON-RPC endpoint. ACLs blocked most writes except one: /etc/firewall.user, a root-run shell script triggered on firewall reload, where it allowed writing a command there and triggering a reload via the GUI executed code as root, confirmed by reading back uid=0. Affected versions are UaniaOS 2.1 through 3.0.0. It was fixed in 3.0.1. Vendor UANIA reproduced the bug, attributed it to excessive ACL permissions in their OpenWrt customization feeds, and patched it, though the MITRE CVE filing stalled for months due to a broken submission form.

2026.09.22
rainpwn.blog6 min readTLDR InfoSec

WINDOWS EXPLOITATION TECHNIQUES: DANGLING COM OBJECT REGISTRATIONS

A Windows COM class stayed registered to a missing DLL in the user-writable ProgramData folder, letting any user plant code for a SYSTEM process to load (CVE-2026-66804, an incomplete fix for "Dark Elevator"). The exploit sent a custom-marshaled object pointing to the dangling CLSID to the Shell Create Object Handler, a SYSTEM COM server that ordinary users can start via a scheduled task and that allows custom marshaling. Defenders should patch, audit InProcServer32 registrations for DLLs that don't resolve in writable paths, and make sure privileged COM servers set EOAC_NO_CUSTOM_MARSHAL or the strong unmarshaling policy.

2026.09.22
projectzero.google7 min readTLDR InfoSec

TIGERBYTE CYBER (PRODUCT LAUNCH)

TigerByte Cyber's Cyber Protection Suite hardens legacy and edge devices with data validation, packet inspection, network segmentation, and post-quantum encryption. It targets aircraft, drones, satellites, vehicles, and other mission-critical systems.

2026.09.22
tigerbytecyber.usTLDR InfoSec

MSRKIT

MSRKit is a Windows kernel exploitation library and CLI that hijacks IA32_LSTAR via a ROP chain through AmdTools64.sys to call arbitrary kernel functions and map unsigned drivers without HVCI. The ROP chain temporarily clears SMEP/SMAP in CR4, dispatches the target, then restores both CR4 and LSTAR cleanly before returning to user mode via sysretq. The library supports all Windows 10/11 builds and KPTI, but requires HVCI to be disabled. Concurrent callers across processes will BSOD.

2026.09.22
github.comGitHub repositoryTLDR InfoSec

ENTRATRACE

EntraTrace is a defensive security research tool for documenting and identifying the observable behavior of offensive tooling targeting Microsoft Entra ID. The project builds an automated knowledge base on tools such as AzureHound, AADInternals, O365Enum, PingCastle, and others, focusing on the User-Agent and API artifacts they generate.

2026.09.22
github.comGitHub repositoryTLDR InfoSec

HOW GOOGLE INFILTRATED A NOTORIOUS HACKING GANG WITH AN UNDERCOVER ANALYST

Google placed researcher Austin Larsen inside TeamPCP during its hacking campaign. He accessed a server holding stolen usernames, passwords, and access tokens. Google warned affected victims and disrupted credential abuse, and Larsen linked an alleged member to a Gmail account and Google Drive backups. Google shared evidence with the FBI, and the Australian police arrested the suspect a month later.

2026.09.22
firstpost.com2 min readTLDR InfoSec

GEMINI HACKED THREE COMPANIES IN FIRST KNOWN BREAKOUT BY GOOGLE'S AI

During a May security evaluation, Google's Gemini accessed three external websites after finding public information and trying credentials. One access came through password guessing. Two used credentials exposed in a public repository. Google said Gemini stopped in each case. Irregular notified the affected organizations and said it fixed its testing-process issues weeks later.

2026.09.22
edition.cnn.com1 min readTLDR InfoSec

NORTH KOREAN WATERPLUM HACKERS INFECTED 30,000 DEVICES WORLDWIDE

WaterPlum (aka Contagious Interview) compromised 30,000+ devices across 100+ countries between December 2025 and July 2026, draining $10.7M from over 7,000 cryptocurrency wallets. A joint US, Japanese, Australian, and German advisory attributed the campaign to North Korea's 313 General Bureau and five malware families (BeaverTail, InvisibleFerret, OtterCookie, OtterCandy, and StoatWaffle) delivered through fake technical interviews on recruiting platforms. North Korean IT workers later reused identity documents stolen from victims to fraudulently obtain jobs at Western companies.

2026.09.22
links.tldrnewsletter.com4 min readTLDR InfoSec