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12 stories in the last 3d

One runaway AI agent racked up a $50,000 cloud bill

Mandiant's AI Risk and Resilience report details prompt injection, AI supply chain compromises, agent abuse, and a runaway agent that accrued $50,000 in cloud charges.

Mandiant, drawing on Google Threat Intelligence Group (GTIG) observations, warns that poisoned data sources, model dependencies, and extension hooks can turn AI agents into channels for reconnaissance, lateral movement, and sandbox escape. Mandiant responded to incidents involving UNC6780 (TeamPCP), who stole AI service credentials and used prompt injection against AI coding assistants, while GTIG disclosed the first confirmed criminal use of an AI-developed zero-day exploit in a planned mass exploitation campaign. Red team tests showed an AI assistant manipulated into cloning internal repositories to an external GitHub account, and a runaway accounting agent made over 15,000 costly API calls in under an hour, generating roughly $50,000 in cloud charges.

Help Net Security · 1d agoAI safety & security in the wild

Ransomware incidents in Japan in the first half of 2026: Investigation of The Gentlemen’s infrastructure and evidence of Qilin's AI usenew

Cisco Talos reports 90 ransomware incidents hit Japanese organizations in H1 2026, led by The Gentlemen, with Qilin using AI for efficiency.

Cisco Talos observed 90 ransomware incidents against Japanese organizations from January to July 2026, up about 4.7% year over year, with manufacturing accounting for 34% of victims. The Gentlemen was the most active group with 14 incidents; its leak-site listings grew from 48 in January to 105 in July. Qilin and SafePay followed with seven incidents each, and Talos notes Qilin is leveraging AI to improve operational efficiency.

Cisco Talos · 34m agoRansomware in the wild

U.S. CISA adds Acronis Backup, Cisco ISE, and Google Pixel flaws to its Known Exploited Vulnerabilities catalog

CISA added actively exploited flaws in Cisco ISE, Acronis Backup, and Google Pixel (CVE-2026-76460, CVE-2026-87886, CVE-2026-58704) to its KEV catalog.

CISA added three actively exploited vulnerabilities to its Known Exploited Vulnerabilities catalog: CVE-2026-76460 (CVSS 10.0), an unauthenticated API authentication bypass in Cisco Identity Services Engine that Cisco confirms is being actively exploited; CVE-2026-87886, a local privilege escalation in the Acronis Backup plugins for cPanel/WHM and Plesk exploited in limited targeted attacks; and CVE-2026-58704 (CVSS 8.8), a Google Pixel cellular modem permission bypass exploited in limited, targeted attacks and patched in the September 2026 Pixel update. Under BOD 22-01, federal agencies must remediate KEV entries by the stated due dates. Google has not attributed the Pixel exploitation to any actor.

Security Affairsupdated · 11m agofirst · 1h agoExploit / PoC in the wild 19 sourcesCVE-2026-76460CVE-2026-87886CVE-2026-58704

Chinese hackers use SparroWocky malware in govt espionage attacks

ESET reports China-linked FamousSparrow deployed a new modular backdoor, SparroWocky, in year-long espionage attacks on Latin American government organizations.

ESET researchers observed FamousSparrow using SparroWocky, a modular C++ backdoor replacing the earlier SparrowDoor tool, against government targets in Argentina, Ecuador, Guatemala, Honduras, Panama, Peru, Puerto Rico, and Venezuela. Deployed via DLL side-loading with an RC4-encrypted payload mapped in memory, it captures screenshots, acts as a TCP proxy, and hooks CreateThread so malicious threads appear as AnimateWindow. Persistence uses a ProcAuditManager Windows service or SnapCart registry key; ESET tracked at least 18 C2 addresses and published IoCs.

BleepingComputer · 1h agoThreat actor in the wild

NightEagle Hackers Target Russian Companies Using GhostContainer Backdoor

Kaspersky links NightEagle (APT-Q-95) intrusions in Russia to stolen VPN credentials, the GhostContainer Exchange backdoor, BlueKeep exploitation, and covert tunneling for espionage.

Kaspersky's Global Emergency Response Team attributes new intrusions against Russian companies to NightEagle (APT-Q-95), active since at least 2023 and previously focused on Asian organizations. The group uses valid VPN credentials, deploys the .NET-based GhostContainer backdoor on Microsoft Exchange servers, and tunnels RDP via Microsoft Dev Tunnels and rdp2tcp. In one incident operators exploited BlueKeep (CVE-2019-0708) to create an administrator account, and they performed DCSync replication against Active Directory to harvest domain password hashes. GhostContainer reuses code from Neo-reGeorg, ExchangeCmdPy.py (CVE-2020-0688), and ysoserial, and tampers with AMSI and Windows event logging to evade detection.

GBHackersupdated · 2h agofirst · 4h agoThreat actor in the wild 5 sourcesCVE-2019-0708CVE-2020-06881

N0va Phishkit Targets US and EU Businesses: A New Challenge for Identity Security

N0va phishkit targets US and EU organizations with trusted-brand lures, capturing tokens via legitimate authentication flows to gain SSO access to corporate resources.

The N0va phishing kit targets organizations in government, technology, consulting, and healthcare across North America and Europe with lures impersonating Microsoft Teams, SharePoint, OneDrive, DocuSign, Google Drive, Dropbox, Zoom, and Adobe Sign. Victims are guided through legitimate authentication flows, including device code phishing, after which N0va captures access and refresh tokens and abuses token-exchange or device-registration mechanisms to establish SSO access. ANY.RUN tracks the campaign via a characteristic /api/verification/init URL pattern and demonstrates detection in its interactive sandbox.

The Hacker Newsupdated · 19h agofirst · 22h agoPhishing & fraud in the wild 8 sources2

Microsoft Releases Emergency Windows 11 Update Following Patch Tuesday Bugs

Microsoft issued emergency Windows 11 update KB5129195 to fix Patch Tuesday regressions and fully close the CVE-2026-62721 privilege escalation flaw.

Microsoft shipped out-of-band cumulative update KB5129195 for Windows 11 24H2 and 25H2 (builds 26100.9457 and 26200.9457) after the September 8 Patch Tuesday rollup, which addressed over 960 CVEs including two actively exploited flaws, broke Remote Desktop Services, Hyper-V Plan9 folder sharing, and USB audio. The emergency release also strengthens the incomplete fix for CVE-2026-62721, an elevation-of-privilege flaw in the Windows User-Mode Power Service that could let a local attacker gain SYSTEM privileges. Companion patches cover Windows 11 26H1, Windows 10, and Windows Server. Some USB Audio Class 1.0 and AMD Radeon graphics issues remain unresolved.

Cyber Security News · 1d agoVulnerability in the wildCVE-2026-627211

KREMLIN Banking Malware Bypasses Chrome Security to Steal Banking Sessions

Elastic Security Labs details KREMLIN, a Brazilian banking malware that implants malicious Chrome and Edge extensions by forging Chromium integrity values to steal banking sessions.

Elastic Security Labs tracks the KREMLIN banking malware operation as REF9334, active since at least May 2025 across seven campaigns primarily targeting 12 Brazilian banks. The malware is installed by a victim-run JavaScript loader, achieves scheduled-task persistence, and side-loads a malicious DLL via SentinelOne's SentinelMemoryScanner.exe. It modifies Chrome and Edge Secure Preferences files, enables developer mode, and regenerates Chromium MAC values to silently install extensions, while extracting browser encryption material including the newer App-Bound OSCrypt key. An Ethereum smart contract serves as a dead-drop resolver for C2 config; Elastic disrupted over 1,500 infections via a canary domain.

GBHackers · 1d agoMalware in the wild 2 sources

Hackers Actively Exploit Critical WooCommerce Plugin Vulnerability to Upload PHP Backdoors

Attackers actively exploit CVE-2026-27540 (CVSS 9.8) in WooCommerce Wholesale Lead Capture plugin to upload PHP webshells; patch shipped in version 2.0.3.2.

CVE-2026-27540 (CVSS 9.8) in the WooCommerce Wholesale Lead Capture plugin affects versions 2.0.3.1 and earlier across roughly 6,000 active installations. The unauthenticated AJAX handler wwlc_file_upload_handler trusts a client-supplied file_settings allowlist, letting attackers upload shell.php for remote code execution. Wordfence has blocked more than 100,000 exploit attempts since disclosure, with spikes in June, July, and August 2026. The vendor fixed the flaw in version 2.0.3.2.

GBHackersupdated · 19h agofirst · 1d agoExploit / PoC in the wild 6 sourcesCVE-2026-27540

Hackers Exploit Critical Cisco Secure Email Gateway Vulnerability in the Wild to Run Malicious Code

Cisco warns attackers actively exploit zero-day CVE-2026-76461 in Secure Email Gateway, gaining unauthenticated root command execution via crafted emails.

Cisco PSIRT confirmed active in-the-wild exploitation of CVE-2026-76461 throughout September 2026, a zero-day in Secure Email Gateway AsyncOS that lets remote, unauthenticated attackers execute arbitrary commands with root privileges by sending maliciously crafted emails containing injected SQL statements. Physical appliances, virtual deployments, and Cisco Secure Email Cloud instances were affected; Cisco deployed server-side remediations for cloud tenants but on-premises admins must patch themselves. Fixes ship in AsyncOS 16.5.0-780 plus branches 16.0.4-3021 and 15.5.5-0141, and no workarounds exist.

Cyber Security Newsupdated · 20h agofirst · 2d agoExploit / PoC in the wild 17 sourcesCVE-2026-76461

Hackers target exposed Vite dev servers to steal AWS, Azure secrets

Mass scanning campaign exploits CVE-2026-39364 in exposed Vite dev servers to steal AWS, Azure, and Terraform credentials.

F5 honeypots detected over 800 attacks and roughly 32,000 events in a month against internet-exposed Vite development servers, abusing CVE-2026-39364 (file access control bypass in Vite 7.1.0-7.3.2 and 8.x before 8.0.5) via parameters like ?raw and ?import&raw. Attackers used extensive wordlists to harvest .env files, AWS/Azure credentials, Terraform state, and /proc/self/environ, with double-encoded traversal to bypass WAFs. The same IPs also leveraged older Vite flaws CVE-2025-30208, actively-exploited CVE-2025-31125, and CVE-2024-45811, primarily from US, Belgium, and Netherlands using Google Cloud ranges.

BleepingComputerupdated · 1d agofirst · 2d agoExploit / PoC in the wild 4 sourcesCVE-2026-39364CVE-2025-30208CVE-2025-31125+1 CVEs2

14th September – Threat Intelligence Report

Check Point weekly digest: Microsoft's record 974-vuln Patch Tuesday ships two actively exploited Windows zero-days; IDScan.net, Mathspace, Revolut suffer breaches.

Microsoft's September 2026 Patch Tuesday addressed a record 974 vulnerabilities, including two actively exploited privilege-escalation zero-days, CVE-2026-85880 and CVE-2026-81963, plus 20 flaws allowing unauthenticated remote code execution. Disclosed breaches include IDScan.net (identity documents), Mathspace (over 1 million people via Metabase CVE-2026-72898), Revolut, and Florida DMV (ShinyHunters). GitLab fixed critical CVSS 10.0 path traversal CVE-2026-85706, and MikroTik fixed chainable RouterOS flaws CVE-2026-67276 and CVE-2026-86060. The report also covers the PuzzleMask LLM jailbreak technique, GoldFactory's Gigabud Android fraud, and the BlueMoon Chromium exploit chain (CVE-2026-85046).

Check Point Research · 2d agoExploit / PoC in the wildCVE-2026-72898CVE-2026-85880CVE-2026-81963+4 CVEs2· 1 read