Collaborate Disseminate
Today, I noticed increased scans for the VMWare Hyprid Cloud Extension (HCX) “sessions” endpoint. These endpoints are sometimes associated with exploit attempts for various VMWare vulnerabilities to determine if the system is running the extensions or to gather additional information to aid exploitation.
(c) SANS Internet Storm Center. https://isc.sans.edu Creative Commons Attribution-Noncommercial 3.0 United States License. Continue reading ISC Stormcast For Wednesday, March 12th, 2025 https://isc.sans.edu/podcastdetail/9360, (Wed, Mar 12th)
The March patch Tuesday looks like a fairly light affair, with only 51 vulnerabilities total and only six rated as critical. However, this patch Tuesday also includes six patches for already exploited, aka “0-Day” vulnerabilities. None of the already exploited vulnerabilities are rated as critical.
Continue reading Microsoft Patch Tuesday: March 2025, (Tue, Mar 11th)
(c) SANS Internet Storm Center. https://isc.sans.edu Creative Commons Attribution-Noncommercial 3.0 United States License. Continue reading ISC Stormcast For Tuesday, March 11th, 2025 https://isc.sans.edu/podcastdetail/9358, (Tue, Mar 11th)
I returned from another FOR610[1] class last week in London. One key tip I give to my students is to keep an eye on “strange” API calls. In the Windows ecosystem, Microsoft offers tons of API calls to developers. The fact that an API is used in a program does not always mean we are facing malicious code, but sometimes, some of them are derived from their official purpose. One of my hunting rules for malicious scripts is to search for occurrences of the ctypes[2] library. It allows Python to call functions in DLLs or shared libraries.
Continue reading Shellcode Encoded in UUIDs, (Mon, Mar 10th)
(c) SANS Internet Storm Center. https://isc.sans.edu Creative Commons Attribution-Noncommercial 3.0 United States License. Continue reading ISC Stormcast For Monday, March 10th, 2025 https://isc.sans.edu/podcastdetail/9356, (Mon, Mar 10th)
Looking over some weblogs on my way back from class in Baltimore, I feel a reminder is appropriate that (a) weblogs are still a thing and (b) what some of the common webshells are that attackers are looking for.
Continue reading Commonly Probed Webshell URLs, (Sun, Mar 9th)
(c) SANS Internet Storm Center. https://isc.sans.edu Creative Commons Attribution-Noncommercial 3.0 United States License. Continue reading ISC Stormcast For Friday, March 7th, 2025 https://isc.sans.edu/podcastdetail/9354, (Fri, Mar 7th)
(c) SANS Internet Storm Center. https://isc.sans.edu Creative Commons Attribution-Noncommercial 3.0 United States License. Continue reading ISC Stormcast For Thursday, March 6th, 2025 https://isc.sans.edu/podcastdetail/9352, (Thu, Mar 6th)
Using the Kibana interface, sometimes it can be difficult to find traffic of interest since there can be so much of it. The 3 logs used for traffic analysis are cowrie, webhoneypot and the firewall logs. Other options to add to the honeypot are packet capture, netflow and Zeek.
Continue reading DShield Traffic Analysis using ELK, (Thu, Mar 6th)