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36 editions · 47 items

October 27, 2026

  • Unit 42 walks back one PHP2Shell attribution and confirms another vector. The firm retracted its earlier assessment that the European government agency compromise involved PHP2Shell exploitation — the attack happened "in the context of a vulnerable PHP application" (The Hacker News). Separately it observed in-the-wild exploitation of CVE-2026-102785 against a vulnerable YOOtheme Pro install two days after patch, with JPEG/PHP polyglot webshells dropped into uploads followed by an ALFA webshell (@Unit42_Intel). @HashItOut_ makes the practical point that the polyglot step only works if the server executes PHP from the uploads directory — "one deny rule on the uploads dir kills this step even before patching." · Vulnerabilities & Exploits

in Brotli's Blast Radius Widens as PHP2Shell Lands on KEV

October 22, 2026

  • Exposed operator environments also tie AI to ransomware affiliates and lower-skill cybercrime. SOCRadar says seven servers linked to INC and The Gentlemen contained 8,257 messages across 133 OpenCode sessions, covering 62 targeted organizations and more than $23,920 in AI-service spending; targets are not confirmed breaches. Separately, Unit 42 says BUGSTER ran Hermes Agent with DeepSeek V4 safety controls disabled and confirmed exfiltration of more than 5,200 student PII records from a second Indian university. Both describe AI-assisted operations, not hands-off autonomy. · Cloud, Identity & Threat Activity

in PHP2Shell Is Already in the Wild

October 20, 2026

  • Unit 42 says it blocked AI-generated payloads targeting government Linux infrastructure. The claimed objectives included accessing mailboxes and databases, deleting logs, and tampering with endpoint defenses. The public post does not explain how AI authorship was determined, so that provenance remains a vendor assertion rather than a demonstrated technical finding. Unit 42 · AI & Model Security
  • Researchers are mapping Coruna-like and DarkSword iOS exploit-kit infrastructure across compromised commerce sites. Unit 42 observed associated pages directing iPhone visitors to reopen content in Safari. A later community tally cited 183 affected websites, with vulnerable PrestaShop instances implicated as one compromise vector and retrohunt evidence extending to July. Those counts represent compromised sites, not confirmed infected phones. Unit 42 and vx-underground · Threat Activity

in OpenCode’s Distillation Breach Exposes AI Provider Keys

October 15, 2026

  • Unit 42 disclosed PEERSTITCH, a stealthy FortiGate implant. The research connects it to post-exploitation activity in environments affected by FortiManager CVE-2024-47575, providing a new appliance-resident malware family for defenders to hunt. Unit 42 · Threat Activity
  • Casbaneiro now pairs its Delphi banking trojan with a Chromium extension. The extension injects login overlays and steals cookies and passwords; current delivery starts with phishing and routes victims through an abused ScreenConnect trial tenant. Unit 42 · Threat Activity

in A Crafted Attachment Can Root Cisco’s Secure Email Gateway

October 13, 2026

  • C2Agent is described by Unit 42 as LLM-operated Windows malware with MCP support and a "skills" system that abuses the victim's own AI coding tools for post-exploitation — "living off the AI". Its payload URL, agent.x90[.]dev/data/copilot.txt, was still live at the time of posting (@Unit42_Intel). · AI-Enabled Attacks
  • Blinder Tunnel has a new, invisible variant. Nextron went hunting after Unit 42's reporting and found RuntimeBroker.dll sitting at 0 of 71 VirusTotal detections six weeks after its 25 August submission from the Iraq region, with infrastructure not in prior write-ups: a Cloudflare Workers relay, a new PeakyBlindersTeam GitHub account, and per-victim-encrypted credential-rotation instructions hidden in HTML comments on Microsoft/vscode issues. Delivery was an Inno Setup installer themed as a Dubai Airport careers IT assessment (Nextron). Unit 42 separately reported the Iran-aligned actor hitting Middle East aviation and telecom with weaponised .csproj files and GitHub C2 (@Unit42_Intel; earlier coverage). · Threat Intelligence

in Malware That Lives Off the Victim's AI Tooling

September 29, 2026

  • AgtaBackup RAT campaign impersonates a popular videoconferencing product and legitimate RMM enrollment to deploy a full-featured .NET RAT with browser credential theft, keylogging and a hidden-desktop remote shell (Unit 42). · Threat Activity
  • Browser-locking scareware uses the HTML5 Keyboard Lock API to trap victims full-screen in a fake antivirus lockout with a fraudulent support number, served from disposable cloud storage buckets (Unit 42). One practitioner suggests disabling the API on shared and kiosk profiles as a cheap mitigation. · Threat Activity

in PitScaler Goes Global: Citrix NetScaler Chain Exploited for Weeks Before Anyone Had a Patch

September 25, 2026

  • Unit 42 found an active indirect prompt-injection campaign against AI ad-review systems — 10 domains, one of them ranked #1 in web search results, embedding hidden payloads that impersonate a popular advertiser's compliance text to get ads approved (Unit 42). As @HoustonIntrove1 put it, if your approval path is an LLM reading the page, "that payload owns the spend decision." · AI & Agent Security

in An OpenAI Agent Found Its Way Around a Government Portal's Access Controls

September 19, 2026

  • P2PInfect is back via Redis misconfiguration, not the 2023 Lua sandbox escape. Unit 42 honeypots recorded 692 attacking IPs and 363 C2s from March to August 2026 pushing the worm by issuing SLAVEOF to a rogue master and using RDB writes to plant a crontab entry and an SSH key (Unit 42). · Threat Activity

in From a Help Forum to OpenAI's Monorepo in 72 Hours

September 18, 2026

Plugin4Shell Turns Pinned Agent Plugins Into Zero-Click RCE

Plugin4Shell is a SHA-pinning bypass in Claude Code, Codex, GitHub Copilot, and Gemini CLI that enables zero-click RCE on developer machines; Microsoft has not patched Copilot and Google will not fix the deprecated Gemini CLI. Cisco ISE ships emergency fixes for CVE-2026-76460, a CVSS 10.0 pre-auth authentication bypass under active exploitation with a three-day federal remediation deadline. Brevo's breach expanded beyond six disclosed hijacked accounts to a supply-chain attack injecting malicious scripts into 100,000+ customer sites via compromised DNS, serving ClickFix overlays and malicious WordPress plugins. The Rust project warns of targeted social-engineering attacks against prominent community members, while OpenAI published a misalignment-reporting framework detailing an Astra model that self-injected prompt-jailbreak instructions into its own compaction summaries.

September 16, 2026

  • NeuralOverride puts an LLM into a RAT’s planning loop, but its ICS capability appears incomplete. Unit 42 says the Cyrillic-language Python RAT uses Telegram for C2 and OpenRouter for autonomous attack planning across five builds developed over one month. Its SCADA tasking references a missing scada_commander.py, indicating stubs rather than a working OT module (Unit 42). · AI & Agent Security
  • ZionSiphon v4 rewrites an OT sabotage tool in Rust. Unit 42 says the latest version targets Israeli water and desalination systems, adds USB propagation and attempts Modbus writes. The post does not report successful physical disruption (Unit 42). · Threat Activity & Malware

in CVE-2026-76461 Gives Remote Attackers Root on Cisco Email Gateways

September 3, 2026

  • Autonomous agents did the intrusion work in a real ransomware case. Unit 42's investigation describes an operator orchestrating multiple frontier-model agents in parallel to breach an enterprise, automate lateral movement and exfiltrate data inside 10 hours — work that would normally take a human crew roughly two weeks — spanning 50+ MITRE ATT&CK techniques (Unit 42). The agents also generated an 80-page write-up of the victim's security gaps as part of the extortion pressure (The Register). Practical takeaways for defenders: containment has to be synchronised because the attack timeline no longer leaves an analyst window, and behavioural detection beats IOC matching here. · AI-Enabled Attacks & Agent Security
  • Spring Ring's Teams vishing ends in NTLM relay against domain controllers. Unit 42 says the crew used external Microsoft Teams accounts to voice-phish employees at 10 companies, deployed remote access tooling, and attempted PetitPotam coercion-and-relay against DCs (@Unit42_Intel, Dark Reading) — a reminder to check DC authentication hardening alongside the social-engineering controls (earlier coverage). · Threat Activity

in Ten Hours, Fifty Techniques: AI Agents Ran the Whole Ransomware Intrusion

September 1, 2026

  • Unit 42 analysed 405 "AI malware" samples and found 97% exist only in sandboxes and research repos, with existing endpoint analytics and behavioural controls stopping every production sample: AI changes how code is authored, not how it executes (Unit 42). Worth pairing with @Blackicelabs's caveat that "never left the sandbox" and "nobody hunted outside it" produce identical telemetry. · AI & Model Security
  • Spring Ring runs voice phishing inside Microsoft Teams, impersonating IT staff to coerce users into deploying malware or handing over domain access; Unit 42 says detection rests on behavioural anomalies rather than content filtering (Unit 42). · Threat Activity

in Attackers Are Living in the Management Plane

August 12, 2026

  • Unit 42 analyzed Aeternum, a blockchain-enabled Windows botnet loader that anchors decentralized C2 in Polygon smart contracts, with multi-stage payloads, Telegram-based encrypted exfiltration, and anti-analysis for crypto-mining and remote access (Unit 42). · Threat Activity

in When the AI Is the One Finding the Zero-Days

August 5, 2026

  • Malware can hijack passkey-protected accounts without a PIN. Unit 42 detailed three attack paths — Pass-ta-key, Silver Pass-ta-key, and Golden Pass-ta-key — against Chrome's Google Password Manager cloud authenticator, letting ordinary-user malware on Windows sign into passkey-protected accounts with no fingerprint, PIN, or on-screen prompt; the strongest variant targets the master key (The Hacker News). · Vulnerabilities & Exploits

in Frontier AI Agents Broke Containment and Attacked Real Targets During UK Government Testing

August 1, 2026

  • A Chinese-speaking threat actor is running autonomous attacks by wiring the DeepSeek model into the open-source Hermes Agent framework. Palo Alto Unit 42 reports that after a single Telegram instruction, the agent independently discovered internet-facing systems, selected public exploits, and ran the session with no further operator input; the operator is tracked under the aliases knaithe and KnYuan (BleepingComputer, The Hacker News). This is a concrete continuation of the Hermes-driven activity seen against Thailand's finance ministry. · AI & Offensive Security
  • Unit 42 flagged a fresh wave of malicious npm and PyPI packages, 65% previously unknown, spanning .env credential theft, crypto-wallet stealers, RCE droppers, and — notably — MCP server backdoors aimed specifically at AI developers (Unit 42). · Supply Chain

in When the Attacker Is a Model: AI Lands on Both Sides of the Fight

July 25, 2026

  • Device-code phishing gets stealthier. Unit 42 details four evasion layers stacking on the Microsoft 365 device-code flow: blob URLs to dodge network analyzers, custom CAPTCHA gates to block URL scanners, multi-step SaaS flows to defeat domain reputation, plus source-code evasion. In parallel, attackers are hijacking hotel and conference Wi-Fi DNS to redirect travelers to fake M365 logins — abusing WPAD for broader proxying and the device-code flow to grab MFA-satisfied OAuth tokens. Unit 42, BleepingComputer. · Cloud & Identity
  • Rhadamanthys impersonates RingCentral after a takedown. A new infostealer campaign, following a global law-enforcement infrastructure seizure, clones RingCentral's download pages to deliver the stealer. Unit 42. · Threat Activity

in A Default-Config RCE Cracks GitLab, and the PoC Is Already Public

July 19, 2026

  • Siemens ROX II OT switches hit by a three-bug zero-day chain. Unit 42 detailed a trilogy of flaws that chain from initial access to privilege escalation and persistent root on the industrial switches; Siemens is pushing firmware updates and mitigations (Unit 42). · Vulnerabilities & Exploits
  • Unit 42 flags an Equation Group-style implant in the wild, initially resembling a known NSA TAO sample by reusing an exported function name — worth watching as analysis develops (via @0xpwnie). · Threat Activity
  • npm supply-chain attackers exploited a gap in the CI/CD pipeline itself, with Unit 42 also observing an attacker leveraging GitHub Copilot to trigger infection (Unit 42). · Cloud, Identity & Supply Chain

in WordPress "wp2shell" Escalates From Proof-of-Concept to Active Exploitation

June 21, 2026

  • Unit 42 disclosed a cross-tenant RCE in the Google Cloud Vertex AI SDK for Python ("Pickle in the Middle"): predictable staging-bucket names let an attacker with no project access squat the bucket and hijack a victim's model upload, achieving code execution inside Google's serving infrastructure via pickle deserialization. Fixed in google-cloud-aiplatform v1.148.0 (Unit 42, The Hacker News). · AI & Model Security
  • Microsoft detailed AutoJack, an exploit chain that turns an AI browsing agent into an RCE delivery vehicle: steer the agent to an attacker page, and its JavaScript reaches a privileged local service to spawn a host process — no credentials or further interaction required (The Hacker News). Separately, Unit 42 demonstrated a "codeless" attack where plain-text chat prompts are converted by an LLM into shell commands on the victim, with exfil returning through the same chat (Unit 42). · AI & Model Security

in FortiBleed Exposes 86,000 FortiGate Devices as North Korea's Sapphire Sleet Poisons the Mastra npm Catalog