
Hosted by Johannes B. Ullrich · EN

Botnet Hunting for Vulnerabilities in Diagnostic Tools https://isc.sans.edu/diary/Botnet%20Hunting%20for%20Vulnerabilities%20in%20Diagnostic%20Tools/33214 Inside Greatness: Telegram-Distributed M365 AiTM PhaaS https://zerobec.com/blog/greatness-phaas-aitm-and-device-code-phishing A Deep Dive Into the Latest XCSSET Version https://unit42.paloaltonetworks.com/xcsset-v40-malware-analysis/ Strengthening NuGet Supply Chain Security: Reducing API Key Lifetime https://devblogs.microsoft.com/dotnet/strengthening-nuget-supply-chain-security-reducing-api-key-lifetime/ My Upcoming Classes https://www.sans.org/profiles/dr-johannes-ullrich

AUR packages adoption disabled https://lists.archlinux.org/archives/list/aur-general@lists.archlinux.org/thread/DRDEU3JUSC72CB265XHXPFA3DFSLXPBP/ Apple's iCloud File Sharing Left Ex-Employees With Access to Secret Documents https://www.macrumors.com/2026/08/03/apple-icloud-sharing-ex-employees/ Pass the Passkey: A Novel Attack Surface in Passwordless Authentication https://unit42.paloaltonetworks.com/passwordless-authentication-security-risks/ My Upcoming Classes https://www.sans.org/profiles/dr-johannes-ullrich

zipdump.py Metadata Encoding https://isc.sans.edu/diary/zipdumppy+Metadata+Encoding/33202/ Atomic MacOS (AMOS) stealer infection https://isc.sans.edu/diary/Atomic%20MacOS%20%28AMOS%29%20stealer%20infection/33208 Phishing Campaigns Targeting AI Solutions Providers https://isc.sans.edu/diary/Phishing+Campaigns+Targeting+AI+Solutions+Providers/33206/ Predictable RNG Fallback and 32-Bit Reseed in COLDCARD Firmware https://engineering.block.xyz/blog/predictable-rng-fallback-and-32-bit-reseed-in-coldcard-firmware My Upcoming Classes https://www.sans.org/profiles/dr-johannes-ullrich

Reconnaissance First: An SSH Bot That Sizes Up Your Hardware Before Deploying a Miner https://isc.sans.edu/diary/Reconnaissance%20First%3A%20An%20SSH%20Bot%20That%20Sizes%20Up%20Your%20Hardware%20Before%20Deploying%20a%20Miner%20%5BGuest%20Diary%5D/33198 Cisco Secure Firewall Management Center Software Static Credential Vulnerability Exploited CVE-2026-20316 https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-fmc-static-cred-BET3Cjh Inconsistent Group Chats https://www.usenix.org/conference/usenixsecurity26/presentation/gegenhuber https://www.heise.de/en/news/Encrypted-but-wrong-Group-chats-vulnerable-to-manipulated-content-11384112.html My Upcoming Classes https://www.sans.org/profiles/dr-johannes-ullrich

Apple Patch Summary / Postscript https://isc.sans.edu/diary/Apple%20Patches%20Everything%20%28July%202026%29/33196 IPMI Admin Password Hash Leak https://lavahq.io/research/bmc-exposure-alert Patches for VMWare https://support.broadcom.com/web/ecx/support-content-notification/-/external/content/SecurityAdvisories/0/38017 OpenWRT Patch, odhcpd vulnerability CVE-2026-53921 https://github.com/openwrt/odhcpd/security/advisories/GHSA-7fwx-hhrg-3496 My Upcoming Classes https://www.sans.org/profiles/dr-johannes-ullrich

AutoIT Payload Injector https://isc.sans.edu/diary/AutoIT%20Payload%20Injector%20/33192 Apple Security Update https://support.apple.com/en-us/100100 SourTrade: Browser-Assembled Malware Delivered Through Malvertising https://blog.confiant.com/p/sourtrade-browser-assembled-malware NGINX Exploit CVE-2026-42530, CVE-2026-42533 https://github.com/DepthFirstDisclosures/Nginx-Rift/tree/main My Upcoming Classes https://www.sans.org/profiles/dr-johannes-ullrich

Java Spring Boot "heapdump" scans https://isc.sans.edu/diary/Java%20Spring%20Boot%20%22heapdump%22%20scans/33188 VBULLETIN RUNTIME TEMPLATE RUNMATHS PREAUTH RCE https://ssd-disclosure.com/vbulletin-runtime-template-runmaths-preauth-rce/ Microsoft Defender for Linux Update may disable restart https://learn.microsoft.com/en-us/defender-endpoint/microsoft-defender-endpoint-releases#issues-have-been-found-with-versions-101260420000101260420009 MongoDB Updates CVE-2026-13072 https://github.com/advisories/GHSA-wvx7-gr2m-7rf5 My Upcoming Classes https://www.sans.org/profiles/dr-johannes-ullrich

Scans for ESAFENET CDG 3 Document Management System Weak Logins https://isc.sans.edu/diary/Scans%20for%20ESAFENET%20CDG%203%20Document%20Management%20System%20Weak%20Logins/33184 DNS Poisoning Tactics Expand to Hospitality Wi-Fi https://reliaquest.com/blog/threat-spotlight-dns-poisoning-tactics-expand-to-hospitality/ Silent Replacement of Trusted macOS App Executables https://mysk.blog/2026/07/23/macos-overwrite-app-executables/ GitHub and PyPi Defense updates https://github.blog/security/supply-chain-security/the-case-for-a-cooldown-why-dependabot-now-waits-before-issuing-version-updates/ https://blog.pypi.org/posts/2026-07-22-releases-now-reject-new-files-after-14-days/ https://www.bleepingcomputer.com/news/security/github-pypi-add-time-absed-defenses-against-supply-chain-attacks/ My Upcoming Classes https://www.sans.org/profiles/dr-johannes-ullrich

When the "Autonomous Attacker" Is Your Own AI Model https://isc.sans.edu/diary/When%20the%20%22Autonomous%20Attacker%22%20Is%20Your%20Own%20AI%20Model/33180 Russian State-Supported Cyber Actors Conduct Phishing Campaign Targeting Users of Zimbra https://www.cisa.gov/news-events/cybersecurity-advisories/aa26-204a https://cert.gov.ua/article/6318634 https://cybersecuritynews.com/hackers-abuse-notepad-plugins/ Chaos ransomware's msaRAT: Living off the browser to build a covert C2 channel https://blog.talosintelligence.com/chaos-msarat-living-off-the-browser-to-build-covert-c2-channel/ My Upcoming Classes https://www.sans.org/profiles/dr-johannes-ullrich

Rondo Meets Geoserver https://isc.sans.edu/diary/Rondo%20Meets%20Geoserver/33176 Oracle July Patch Update https://www.oracle.com/security-alerts/cpujul2026.html OpenAI and Hugging Face partner to address security incident during model evaluation https://openai.com/index/hugging-face-model-evaluation-security-incident/ Checkpoint July 2026 Security Advisory (CVE-2026-16232) https://blog.checkpoint.com/security/security-advisory-action-required-active-exploitation-of-check-point-smartconsole-authentication-bypass-cve-2026-16232/ My Upcoming Classes https://www.sans.org/profiles/dr-johannes-ullrich