SANS Internet Storm Center's Daily Network Security News Podcast

SANS Stormcast Monday, November 17th, 2025: New(isch) Fortiweb Vulnerability; Finger and ClickFix Fortiweb Vulnerability Fortinet, with significant delay, acknowledged a recently patched vulnerability after exploit attempts were seen publicly. https://isc.sans.edu/diary/Honeypot+FortiWeb+CVE202564446+Exploits/32486 https://labs.watchtowr.com/when-the-impersonation-function-gets-used-to-impersonate...

SANS Stormcast Friday, November 14th, 2025: SmartApeSG and ClickFix; Formbook Obfuscation Tricks; Sudo-rs Vulnerabilities; SANS Holiday Hack Challenge SmartApeSG campaign uses ClickFix page to push NetSupport RAT A detailed analysis of a recent SamtApeSG campaign taking advantage of ClickFix https://isc.sans.edu/diary/32474 Formbook Delivered Through Multiple Scripts An analysis of a recent versio...

SANS Stormcast Thursday, November 13th, 2025: OWASP Top 10 Update; Cisco/Citrix Exploits; Test post quantum readiness OWASP Top 10 2025 Release Candidate OWASP published a release candidate for the 2025 version of its Top 10 list https://owasp.org/Top10/2025/0x00_2025-Introduction/ Citrix/Cisco Exploitation Details Amazon detailed how Citrix and Cisco vulnerabilities were used by advanced actors t...

SANS Stormcast Wednesday, November 12th, 2025: Microsoft Patch Tuesday; Gladinet Triofox Vulnerability; SAP Patches Microsoft Patch Tuesday for November 2025 https://isc.sans.edu/diary/Microsoft+Patch+Tuesday+for+November+2025/32468/ Gladinet Triofox Vulnerability Triofox uses the "host" header in lieu of proper access control, allowing an attacker to access the page managing administrators by sim...

SANS Stormcast Tuesday, November 11th, 2025: 3CX Related Scans; Watchguard Default Password; It isn't always defaults: Scans for 3CX Usernames Our honeypots detected scans for usernames that may be related to 3CX business phone systems https://isc.sans.edu/diary/It%20isn%27t%20always%20defaults%3A%20Scans%20for%203CX%20usernames/32464 Watchguard Default Password Controversy A CVE number was assign...

SANS Stormcast Monday, November 10th, 2025: Code Repo Requests; Time Delayed ICS Attacks; Encrypted LLM Traffic Sidechannel Attacks Honeypot Requests for Code Repository Attackers continue to scan websites for source code repositories. Keep your repositories outside your document root and proactively scan your own sites. https://isc.sans.edu/diary/Honeypot%3A%20Requests%20for%20%28Code%29%20Reposi...

SANS Stormcast Friday, November 7th, 2025: PowerShell Log Correlation; RondoBox Disected; Google Chrome and Cisco Patches Binary Breadcrumbs: Correlating Malware Samples with Honeypot Logs Using PowerShell [Guest Diary] Windows, with PowerShell, has a great scripting platform to match common Linux/Unix command line utilities. https://isc.sans.edu/diary/Binary%20Breadcrumbs%3A%20Correlating%20Malwa...

SANS Stormcast Thursday, November 6th, 2025: Domain API Update; Teams Spoofing; VShell Report Updates to Domainname API Some updates to our domainname API will make it more flexible and make it easier and faster to get the complete dataset. https://isc.sans.edu/diary/Updates%20to%20Domainname%20API/32452 Microsoft Teams Impersonation and Spoofing Vulnerabilities Checkpoint released details about r...

Apple Patches Everything, Again Apple released a minor OS upgrade across its lineup, fixing a number of security vulnerabilities. https://isc.sans.edu/diary/Apple%20Patches%20Everything%2C%20Again/32448 Remote Access Tools Used to Compromise Trucking and Logistics Attackers infect trucking and logistics companies with regular remote management tools to inject malware into other companies or learn...

SANS Stormcast Tuesday, November 4th, 2025: XWiki SolrSearch Exploits and Rapper Feud; AMD Zen 5 RDSEED Bug; More Malicious Open VSX Extensions XWiki SolrSearch Exploit Attempts CVE-2025-24893 We have detected a number of exploit attempts against XWiki taking advantage of a vulnerability that was added to the KEV list on Friday. https://isc.sans.edu/diary/XWiki%20SolrSearch%20Exploit%20Attempts%20...

SANS Stormcast Monday, November 3rd, 2025: Port 8530/8531 Scans; BADCANDY Webshells; Open VSX Security Improvements Scans for WSUS: Port 8530/8531 TCP, CVE-2025-59287 We did observe an increase in scans for TCP ports 8530 and 8531. These ports are associated with WSUS and the scans are likely looking for servers vulnerable to CVE-2025-59287 https://isc.sans.edu/diary/Scans%20for%20Port%208530%2085...

SANS Stormcast Friday, October 31st, 2025: Bug Bounty Headers; Exchange hardening; MOVEIt vulnerability X-Request-Purpose: Identifying "research" and bug bounty related scans? Our honeypots captured a few requests with bug bounty specific headers. These headers are meant to make it easier to identify requests related to bug bounty, and they are supposed to identify the researcher conducting the sc...

SANS Stormcast Thursday, October 30th, 2025: Memory Only Filesystems Forensics; Azure Outage; docker-compose patch How to Collect Memory-Only Filesystems on Linux Systems Getting forensically sound copies of memory-only file systems on Linux can be tricky, as tools like "dd" do not work. https://isc.sans.edu/diary/How%20to%20collect%20memory-only%20filesystems%20on%20Linux%20systems/32432 Microsof...

SANS Stormcast Wednesday, October 29th, 2025: Invisible Subject Character Phishing; Tomcat PUT Vuln; BIND9 Spoofing Vuln PoC Phishing with Invisible Characters in the Subject Line Phishing emails use invisible UTF-8 encoded characters to break up keywords used to detect phishing (or spam). This is aided by mail clients not rendering some characters that should be rendered. https://isc.sans.edu/dia...

SANS Stormcast Tuesday, October 28th, 2025: Bytes over DNS; Unifi Access Vuln; OpenAI Atlas Prompt Injection Bytes over DNS Didiear investigated which bytes may be transmitted as part of a hostname in DNS packets, depending on the client resolver and recursive resolver constraints https://isc.sans.edu/diary/Bytes%20over%20DNS/32420 Unifi Access Vulnerability Unifi fixed a critical vulnerability in...

SANS Stormcast Monday, October 27th, 2025: Bilingual Phishing; Kaitai Struct WebIDE Bilingual Phishing for Cloud Credentials Guy observed identical phishing messages in French and English attempting to phish cloud credentials https://isc.sans.edu/diary/Phishing%20Cloud%20Account%20for%20Information/32416 Kaitai Struct WebIDE The binary file analysis tool Kaitai Struct is now available in a web onl...

SANS Stormcast Friday, October 24th, 2025: Android Infostealer; SessionReaper Exploited; BIND/unbound DNS Spoofing fix; WSUS Exploit Infostealer Targeting Android Devices This infostealer, written in Python, specifically targets Android phones. It takes advantage of Termux to gain access to data and exfiltrates it via Telegram. https://isc.sans.edu/diary/Infostealer%20Targeting%20Android%20Devices...

SANS Stormcast Thursday, October 23rd, 2025: Blue Angle Software Exploit; Oracle CPU; Rust tar library vulnerability. webctrl.cgi/Blue Angel Software Suite Exploit Attempts. Maybe CVE-2025-34033 Variant? Our honeypots detected attacks that appear to exploit CVE-2025-34033 or a similar vulnerability in the Blue Angle Software Suite. https://isc.sans.edu/diary/webctrlcgiBlue+Angel+Software+Suite+Exp...

SANS Stormcast Wednesday, October 22nd, 2025: NTP Pool; Xubuntu Compromise; Squid Vulnerability; Lanscope Vuln; What time is it? Accuracy of pool.ntp.org. How accurate and reliable is pool.ntp.org? Turns out it is very good! https://isc.sans.edu/diary/What%20time%20is%20it%3F%20Accuracy%20of%20pool.ntp.org./32390 Xubuntu Compromise The Xubuntu website was compromised last weekend and served malwar...

SANS Stormcast Tuesday, October 21st, 2025: Syscall() Obfuscation; AWS down; Beijing Time Attack Using Syscall() for Obfuscation/Fileless Activity Fileless malware written in Python can uses syscall() to create file descriptors in memory, evading signatures. https://isc.sans.edu/diary/Using%20Syscall%28%29%20for%20Obfuscation%20Fileless%20Activity/32384 AWS Outages AWS has had issues most of the d...

SANS Stormcast Monday, October 20th, 2025: Malicious Tiktok; More Google Ad Problems; Satellite Insecurity TikTok Videos Promoting Malware InstallationTikTok Videos Promoting Malware Installation Tiktok videos advertising ways to obtain software like Photoshop for free will instead trick users into downloading https://isc.sans.edu/diary/TikTok%20Videos%20Promoting%20Malware%20Installation/32380 Go...

SANS Stormcast Friday, October 17th, 2025: New Slack Workspace; Cisco SNMP Exploited; BIOS Backdoor; @sans_edu reseach: Active Defense New DShield Support Slack Workspace Due to an error on Salesforce's side, we had to create a new Slack Workspace for DShield support. https://isc.sans.edu/diary/New%20DShield%20Support%20Slack/32376 Attackers Exploiting Recently Patched Cisco SNMP Flaw (CVE-2025-20...

SANS Stormcast Thursday, October 16th, 2025: Clipboard Image Stealer; F5 Compromise; Adobe Updates; SAP Patchday Clipboard Image Stealer Xavier presents an infostealer in Python that steals images from the clipboard. https://isc.sans.edu/diary/Clipboard%20Pictures%20Exfiltration%20in%20Python%20Infostealer/32372 F5 Compromise F5 announced a wide-ranging compromise today. Source code and informatio...

SANS Stormcast Wednesday, October 15th, 2025: Microsoft Patchday; Ivanti Advisory; Fortinet Patches Microsoft Patch Tuesday Microsoft not only released new patches, but also the last patches for Windows 10, Office 2016, Office 2019, Exchange 2016 and Exchange 2019. https://isc.sans.edu/diary/Microsoft%20Patch%20Tuesday%20October%202025/32368 Ivanti Advisory Ivanti released an advisory with some mi...

SANS Stormcast Tuesday, October 14th, 2025: ESAFENET Scans; Payroll Priates; MSFT Edge IE Mode Scans for ESAFENET CDG V5 We do see some increase in scans for the Chinese secure document management system, ESAFENET. https://isc.sans.edu/diary/Heads%20Up%3A%20Scans%20for%20ESAFENET%20CDG%20V5%20/32364 Investigating targeted "payroll pirate" attacks affecting US universities Microsoft wrote about how...