security

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%20Malware%20Samples%20with%20Honeypot%20Logs%20Using%20PowerShell%20%5BGuest%20Diary%5D/32454 RondoDox v2 Increases Exploits The RondoDox (or RondoWorm) added a substantial amount of new exploits to its repertoire. https://beelzebub.ai/blog/rondo-dox-v2/ Google Chrome Updates Google released an update for […]

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 recently patched spoofing and impersonation vulnerabilities in Microsoft Teams https://research.checkpoint.com/2025/microsoft-teams-impersonation-and-spoofing-vulnerabilities-exposed/ NViso Report: VSHELL NViso published an amazingly detailed […]

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 about high-value loads in order to steal […]

Mit „Zwischen Reels und Regeln“ unterstützt das BSI Eltern dabei, mit Kindern und Jugendlichen über Sicherheit im digitalen Alltag ins Gespräch zu kommen. Damit reagiert das BSI auf einen Trend: Weniger als ein Drittel der Eltern spricht mit seinem Kind über Gefahren im Internet, bevor dieses ein erstes Smartphone oder anderes Gerät erhält.

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%28CVE-2025-24893%29%20with%20link%20to%20Chicago%20Gangs%20Rappers/32444 AMD Zen 5 Random Number Generator Bug The RDSEED function for AMD s Zen 5 processors does return 0 more often than it should. https://www.amd.com/en/resources/product-security/bulletin/amd-sb-7055.html […]

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%208531%20%28TCP%29.%20Likely%20related%20to%20WSUS%20Vulnerability%20CVE-2025-59287/32440 BADCANDY Webshell Implant Deployed via The Australian Signals Directorate warns that they still see Cisco IOS XE […]

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 scans https://isc.sans.edu/diary/X-Request-Purpose%3A%20Identifying%20%22research%22%20and%20bug%20bounty%20related%20scans%3F/32436 Proton Breach Observatory Proton opened up its breach observatory. […]

Das BSI gibt praxisnahe Tipps für die digitale Sicherheit bei der Nutzung von Onlinebanking und stellt zusammen mit dem ProPK eine Checkliste für den Ernstfall zur Verfügung.

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 Microsoft Azure Front Door Outage Today, Microsoft s Azure Front Door service failed, leading to users not being able to authenticate to various Azure-related services. https://azure.status.microsoft/en-us/status […]

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/diary/A%20phishing%20with%20invisible%20characters%20in%20the%20subject%20line/32428 Apache Tomcat PUT Directory Traversal Apache released an update to Tomcat fixing a directory traversal […]