security

Do Sextortion Scams Still Work in 2025? Jan looked at recent sextortion emails to check if any of the crypto addresses in these emails received deposits. Sadly, some did, so these scams still work. https://isc.sans.edu/diary/Do%20sextortion%20scams%20still%20work%20in%202025%3F/32178 Akira Ransomware Group s use of Drivers Guidepoint Security observed the Akira ransomware group using specific legitimate drivers for privilege […]

Stealing Machinekeys for fun and profit (or riding the SharePoint wave) Bojan explains in detail how .NET uses Machine Keys to protect the VIEWSTATE, and how to abuse the VIEWSTATE for code execution if the Machine Keys are lost. https://isc.sans.edu/diary/Stealing%20Machine%20Keys%20for%20fun%20and%20profit%20%28or%20riding%20the%20SharePoint%20wave%29/32174 Perplexity is using stealth, undeclared crawlers to evade website no-crawl directives Perplexity will change its […]

Daily Trends Report A new trends report will bring you daily data highlights via e-mail. https://isc.sans.edu/diary/New%20Feature%3A%20Daily%20Trends%20Report/32170 NVidia Triton RCE Wiz found an interesting information leakage vulnerability in NVidia s Triton servers that can be leveraged to remote code execution. https://www.wiz.io/blog/nvidia-triton-cve-2025-23319-vuln-chain-to-ai-server Cursor AI MCP Vulnerability An attacker could abuse negligent Cursor MCP configurations to implement backdoors […]

Scans for pop3user with guessable password A particular IP assigned to a network that calls itself Unmanaged has been scanning telnet/ssh for a user called pop3user with passwords pop3user or 123456 . I assume they are looking for legacy systems that either currently run pop3 or ran pop3 in the past, and left the user […]

Scattered Spider Related Domain Names A quick demo of our domain feeds and how they can be used to find Scattered Spider related domains https://isc.sans.edu/diary/Scattered+Spider+Related+Domain+Names/32162 Excel External Workbook Links to Blocked File Types Will Be Disabled by Default Excel will discontinue allowing links to dangerous file types starting as early as October. https://support.microsoft.com/en-us/topic/external-workbook-links-to-blocked-file-types-will-be-disabled-by-default-6dd12903-0592-463d-9e68-0741cf62ee58 CISA Releases […]

Securing Firebase: Lessons Re-Learned from the Tea Breach Inspried by the breach of the Tea app, Brendon Evans recorded a video to inform of Firebase security issues https://isc.sans.edu/diary/Securing%20Firebase%3A%20Lessons%20Re-Learned%20from%20the%20Tea%20Breach/32158 WebKit Vulnerability Exploited before Apple Patch A WebKit vulnerablity patched by Apple yesterday has already been exploited in Google Chrome. Google noted the exploit with its patch […]

Apple Updates Everything: July 2025 Edition Apple released updates for all of its operating systems patching 89 different vulnerabilities. Many vulnerabilities apply to multiple operating systems. https://isc.sans.edu/diary/Apple%20Updates%20Everything%3A%20July%202025/32154 Python Triage A quick python script by Xavier to efficiently search through files, even compressed once, for indicators of compromise. https://isc.sans.edu/diary/Triage+is+Key+Python+to+the+Rescue/32152/ PaperCut Attacks CISA added a 2024 Papercut […]

Summary The Cybersecurity and Infrastructure Security Agency (CISA) and U.S. Coast Guard (USCG) are issuing this Cybersecurity Advisory to present findings from a recent CISA and USCG hunt engagement. The purpose of this advisory is to highlight identified cybersecurity issues, thereby informing security defenders in other organizations of potential similar issues and encouraging them to […]

Parasitic SharePoint Exploits We are seeing attacks against SharePoint itself and attempts to exploit backdoors left behind by attackers. https://isc.sans.edu/diary/Parasitic%20Sharepoint%20Exploits/32148 Cisco ISE Vulnerability Exploited A recently patched vulnerability in Cisco ISE is now being exploited. The Zero Day Initiative has released a blog detailing the exploit chain to obtain code execution as an unauthenticated user. […]

Linux Namespaces Linux namespaces can be used to control networking features on a process-by-process basis. This is useful when trying to present a different network environment to a process being analysed. https://isc.sans.edu/diary/Sinkholing%20Suspicious%20Scripts%20or%20Executables%20on%20Linux/32144 Coyote in the Wild: First-Ever Malware That Abuses UI Automation Akamai identified malware that takes advantage of Microsoft s UI Automation Framework to […]