ISC Stormcast For Tuesday, October 13th, 2026...
(c) SANS Internet Storm Center. https://isc.sans.edu Creative Commons Attribution-Noncommercial 3.0 United States License.
View ArticleISC Stormcast For Monday, October 12th, 2026...
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Why TLP should not replace your internal information classification, (Sat,...
The Traffic Light Protocol (TLP)[1], which is now in its second incarnation, is a wonderful standard that enables one to easily communicate whether information may be shared further (and if so, how...
View ArticleISC Stormcast For Friday, October 9th, 2026...
(c) SANS Internet Storm Center. https://isc.sans.edu Creative Commons Attribution-Noncommercial 3.0 United States License.
View ArticleReconstructing AI Agent Activity: Two New Scripts for Forensic Review, (Thu,...
We just did a major update to FOR577 and added a lot of new material on day 5 about investigating AI usage in incident response. In the new material we dicsuss 8 of the most popular AI coding...
View ArticleISC Stormcast For Thursday, October 8th, 2026...
(c) SANS Internet Storm Center. https://isc.sans.edu Creative Commons Attribution-Noncommercial 3.0 United States License.
View ArticleScans for Atlassian vulnerablity (CVE-2026-21589), (Wed, Oct 7th)
On October 5th, Atlassian published patches for multiple products to fix an "Arbitrary File Access" vulnerability [CVE-2026-21589]. An attacker can read arbitrary files in the web application's...
View ArticleISC Stormcast For Wednesday, October 7th, 2026...
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More RMM Tools In the Wild, (Tue, Oct 6th)
It seems that a trend started… I continue my journey discovering more RMM ("Remote Management & Monitoring") tools abused by threat actors! A few days ago, I wrote a diary[1] about ScreenConnect...
View ArticleISC Stormcast For Tuesday, October 6th, 2026...
(c) SANS Internet Storm Center. https://isc.sans.edu Creative Commons Attribution-Noncommercial 3.0 United States License.
View ArticleISC Stormcast For Monday, October 5th, 2026...
(c) SANS Internet Storm Center. https://isc.sans.edu Creative Commons Attribution-Noncommercial 3.0 United States License.
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TTY Logs and the Data it Captures, (Sun, Oct 4th)
For an experiment, I created a script [1] that parses and send the TTY logs collected from actors or bots activity that run various commands after they successfully login the DShield sensor. Those TTY...
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User Agent Strings Curiosities, (Sun, Oct 4th)
Sometimes I have to smile, or my interest is triggered, when I review new User Agent Strings in the honeypot logs. Like when I see an "authorized" scan: Or when I'm owned for the umpteenth time: I...
View ArticleYARA-X 1.21.0 Release, (Sat, Oct 3rd)
YARA-X's 1.21.0 release brings 5 improvements and 4 bugfixes. One improvement is allowing stdin for CLI option --scan-list. This allows one to generate a list of folders to scan, and pass it via a...
View ArticleISC Stormcast For Friday, October 2nd, 2026...
(c) SANS Internet Storm Center. https://isc.sans.edu Creative Commons Attribution-Noncommercial 3.0 United States License.
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ScreenConnect Client (Ab)used by Attackers, (Thu, Oct 1st)
Threat Actors do not always use top-notch techniques or very complex malware to perform their attacks. Sometimes, they just abuse of existing applications... I received a very simple phishing email:...
View ArticleISC Stormcast For Thursday, October 1st, 2026...
(c) SANS Internet Storm Center. https://isc.sans.edu Creative Commons Attribution-Noncommercial 3.0 United States License.
View ArticleISC Stormcast For Wednesday, September 30th, 2026...
(c) SANS Internet Storm Center. https://isc.sans.edu Creative Commons Attribution-Noncommercial 3.0 United States License.
View ArticleScans for Wordfence Protected Websites, (Tue, Sep 29th)
Starting yesterday, our sensors picked up a small number of scans for "wordfence-waf.php". This particular script is used by Wordfence, a solution to protect WordPress sites. During the Wordfence...
View ArticleISC Stormcast For Tuesday, September 29th, 2026...
(c) SANS Internet Storm Center. https://isc.sans.edu Creative Commons Attribution-Noncommercial 3.0 United States License.
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