Apple Updates Apple released major updates for all of its operating systems. In addition to new features, these updates patch 33 different vulnerabilities. https://isc.sans.edu/diary/Apple%20Updates%20Everything%20-%20iOS%20macOS%2026%20Edition/32286 Microsoft End of Life October 14th, support for Windows 10, Exchange 2016, and Exchange 2019 will e…

Web Searches For Archives Didier observed additional file types being searched for as attackers continue to focus on archive files as they spider web pages https://isc.sans.edu/diary/Web%20Searches%20For%20Archives/32282 FBI Flash Alert: Salesforce Attacks The FBI is alerting users of Salesforce of two different threat actors targeting Salesforce. …

DShield SIEM Docker Updates Guy updated the DShield SIEM which graphically summarizes what is happening inside your honeypot. https://isc.sans.edu/diary/DShield%20SIEM%20Docker%20Updates/32276 Again: Sonicwall SSL VPN Compromises The Australian Government s Signals Directorate noted an increase in compromised Sonicwall devices. https://www.cyber.go…

BASE64 Over DNS The base64 character set exceeds what is allowable in DNS. However, some implementations will work even with these invalid characters. https://isc.sans.edu/diary/BASE64%20Over%20DNS/32274 Google Chrome Update Google released an update for Google Chrome, addressing two vulnerabilities. One of the vulnerabilities is rated critical and…

Microsoft Patch Tuesday As part of its September patch Tuesday, Microsoft addressed 177 different vulnerabilities, 86 of which affect Microsoft products. None of the vulnerabilities has been exploited before today. Two of the vulnerabilities were already made public. Microsoft rates 13 of the vulnerabilities are critical. https://isc.sans.edu/diary…

Major npm compromise A number of high-profile npm libraries were compromised after developers fell for a phishing email. This compromise affected libraries with a total of hundreds of millions of downloads a week. https://bsky.app/profile/bad-at-computer.bsky.social/post/3lydioq5swk2y https://github.com/orgs/community/discussions/172738 https://git…

From YARA Offsets to Virtual Addresses Xavier explains how to convert offsets reported by YARA into offsets suitable for the use with debuggers. https://isc.sans.edu/diary/From%20YARA%20Offsets%20to%20Virtual%20Addresses/32262 Phishing via JavaScript in SVG Files Virustotal uncovered a Colombian phishing campaign that takes advantage of JavaScript …

Unauthorized Issuance of Certificate for 1.1.1.1 Cloudflare published a blog post with more details regarding the bad 1.1.1.1 certificate that was issued by Fina. https://blog.cloudflare.com/unauthorized-issuance-of-certificates-for-1-1-1-1/ AI Model Namespace Reuse Deleted accounts on Huggingface can be taken over by other entities unrelated to th…

Exploit Attempts for Dassault DELMIA Apriso. CVE-2025-5086 Our honeypots detected attacks against the manufacturing management system DELMIA Apriso. The deserialization vulnerability was patched in June and is one of a few critical vulnerabilities patched in recent months. https://isc.sans.edu/diary/Exploit%20Attempts%20for%20Dassault%20DELMIA%20Ap…

A Quick Look at Sextortion at Scale Jan analyzed 1900 different sextortion messages using 205 different Bitcoin addresses to look at the success rate, lifetime, and other metrics defining these campaigns. https://isc.sans.edu/diary/A%20quick%20look%20at%20sextortion%20at%20scale%3A%201%2C900%20messages%20and%20205%20Bitcoin%20addresses%20spanning%2…

pdf-parser: All Streams Didier released a new version of pdf-parser.py. This version fixes a problem with dumping all filtered streams. https://isc.sans.edu/diary/pdf-parser%3A%20All%20Streams/32248 Salesloft Drift Putting OAuth Tokens at Risk OAuth tokens used by Salesloft Drift users to provide access to integrations with Salesforce, Google Works…

Increasing Searches for ZIP Files Attackers are scanning our honeypots more and more for .zip files. They are looking for backups of credential files and the like left behind by careless administrators and developers. https://isc.sans.edu/diary/Increasing%20Searches%20for%20ZIP%20Files/32242 FreePBX Vulnerability An upatched vulnerability in FreePB…

Interesting Technique to Launch a Shellcode Xavier came across malware that PowerShell and the CallWindowProcA() API to launch code. https://isc.sans.edu/diary/Interesting%20Technique%20to%20Launch%20a%20Shellcode/32238 NX Compromised to Steal Wallets and Credentials The popular open source NX build package was compromised. Code was added that uses…

Getting a Better Handle on International Domain Names and Punycode International Domain names can be used for phishing and other attacks. One way to identify suspect names is to look for mixed script use. https://isc.sans.edu/diary/Getting%20a%20Better%20Handle%20on%20International%20Domain%20Names%20and%20Punycode/32234 Citrix Netscaler Vulnerabil…

Reading Location Position Value in Microsoft Word Documents Jessy investigated how Word documents store the last visited document location in the registry. https://isc.sans.edu/diary/Reading%20Location%20Position%20Value%20in%20Microsoft%20Word%20Documents/32224 Weaponizing image scaling against production AI systems AI systems often downscale imag…

The end of an era: Properly formatted IP addresses in all of our data. When initiall designing DShield, addresses were zero padded , an unfortunate choice. As of this week, datafeeds should no longer be zero padded . https://isc.sans.edu/diary/The%20end%20of%20an%20era%3A%20Properly%20formated%20IP%20addresses%20in%20all%20of%20our%20data./32228 .d…

Don't Forget The "-n" Command Line Switch Disabling reverse DNS lookups for IP addresses is important not just for performance, but also for opsec. Xavier is explaining some of the risks. https://isc.sans.edu/diary/Don%27t%20Forget%20The%20%22-n%22%20Command%20Line%20Switch/32220 watchTowr releases details about recent Commvault flaws Users of the …

Airtel Router Scans and Mislabeled Usernames A quick summary of some odd usernames that show up in our honeypot logs https://isc.sans.edu/diary/Airtel%20Router%20Scans%2C%20and%20Mislabeled%20usernames/32216 Apple Patches 0-Day CVE-2025-43300 Apple released an update for iOS, iPadOS and MacOS today patching a single, already exploited, vulnerabilit…

Increased Elasticsearch Recognizance Scans Our honeypots noted an increase in reconnaissance scans for Elasticsearch. In particular, the endpoint /_cluster/settings is hit hard. https://isc.sans.edu/diary/Increased%20Elasticsearch%20Recognizance%20Scans/32212 Microsoft Patch Tuesday Issues Microsoft noted some issues deploying the most recent patch…

Keeping an Eye on MFA Bombing Attacks Attackers will attempt to use authentication fatigue by bombing users with MFA authentication requests. Rob is talking in this diary about how to investigate these attacks in a Microsoft ecosystem. https://isc.sans.edu/diary/Keeping+an+Eye+on+MFABombing+Attacks/32208 Critical Cisco Secure Firewall Management Ce…

SNI5GECT: Sniffing and Injecting 5G Traffic Without Rogue Base Stations Researchers from the Singapore University of Technology and Design released a new framework, SNI5GECT, to passively sniff and inject traffic into 5G data streams, leading to DoS, downgrade and other attacks. https://isc.sans.edu/diary/SNI5GECT%3A%20Sniffing%20and%20Injecting%20…

AI and Faster Attack Analysis A few use cases for LLMs to speed up analysis https://isc.sans.edu/diary/AI%20and%20Faster%20Attack%20Analysis%20%5BGuest%20Diary%5D/32198 Proxyware Malware Being Distributed on YouTube Video Download Site Popular YouTube download sites will attempt to infect users with proxyware. https://asec.ahnlab.com/en/89574/ Xero…

CVE-2017-11882 Will Never Die The (very) old equation editor vulnerability is still being exploited, as this recent sample analyzed by Xavier shows. The payload of the Excel file attempts to download and execute an infostealer to exfiltrate passwords via email. https://isc.sans.edu/diary/CVE-2017-11882%20Will%20Never%20Die/32196 Windows Kerberos El…

Microsoft Patch Tuesday https://isc.sans.edu/diary/Microsoft%20August%202025%20Patch%20Tuesday/32192 https://cymulate.com/blog/zero-click-one-ntlm-microsoft-security-patch-bypass-cve-2025-50154/ libarchive Vulnerability A libarchive vulnerability patched in June was upgraded from a low CVSS score to a critical one. Libarchive is used by compression…

Erlang OTP SSH Exploits A recently patched and easily exploited vulnerability in Erlang/OTP SSH is being exploited. Palo Alto collected some of the details about this exploit activity that they observed. https://unit42.paloaltonetworks.com/erlang-otp-cve-2025-32433/ WinRAR Exploited WinRAR vulnerabilities are actively being exploited by a number of…