
Principal Security Research Engineer @Splunk Speaker: DeepSec Vienna, BlackHat Europe Arsenal
München, Bayern
Joined October 2015
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Patrick Bareiß retweeted
🚨 SAP NetWeaver Webshells Spotted: CVE-2025-31324 in the Wild 🚨
Multiple reports confirmed active exploitation of SAP NetWeaver Visual Composer vulnerabilities (CVE-2025-31324). Attackers are dropping lightweight JSP webshells like the ones shared by Onapsis, captured by ShellSweepX below 👇 — easy to miss, devastating if ignored.
🧹 Enter ShellSweepX — an open-source project from Splunk Threat Research Team built to help defenders proactively hunt, detect, and analyze webshells across their environments.
How ShellSweepX helps defenders:
🔹 Wide Coverage
Uses 300+ webshell-focused YARA rules across JSP, PHP, ASPX, and others — not just signatures, but entropy, anomaly, and obfuscation detection.
🔹 Lightweight, Flexible, and Scalable
ShellSweepX offers agent-based deployment across endpoints with a centralized management server to orchestrate sweeps. It supports webshell file collection, scheduled scans, and makes sweeping hundreds or thousands of systems seamless via API or web UI — all without heavy infrastructure requirements.
🔹 Integrated Threat Hunting
Detailed triage output lets you pivot immediately: showing entropy, size, matches, metadata, and AI-assisted file analysis to catch even stealthy or customized webshells.
🔹 Automation-Ready
Built with a REST API and frontend dashboard, ShellSweepX enables automatic sweeps, centralized hunting campaigns, and seamless integration into your existing IR playbooks and workflows.
Ref:
Onapsis: onapsis.com/blog/active-expl…
Rapid7: rapid7.com/blog/post/2025/04…
🔥 Full project and how to get started:
👉 ShellSweep: github.com/splunk/ShellSweep
👉 ShellSweepX Blog: splunk.com/en_us/blog/securi…
Patrick Bareiß retweeted
Excited to share this blog about our improved research.splunk.com!
📓splunk.com/en_us/blog/securi…
Already seeing 20K+ active users in just 30 days since soft launch!
Huge shoutout to @TyneDarke and the marketing team for this amazing piece, and to Lou Stella, @bareiss_patrick, @SnekCharmerr & the entire #STRT!
🧵1/4
Patrick Bareiß retweeted
🚨 Big News for Splunk Attack Range Users! 🚨
We’ve just dropped a major update— @Snort 3 is now integrated into the Splunk Attack Range! 🎉🐍 Amazing work by @bareiss_patrick !
If you haven’t tried out Attack Range yet, it’s a breeze to get started! 🍃
Clone the repo: github.com/splunk/attack_ran… 📥
Run: python attack_range.py configure
to easily select server OSs, enable Snort3 or Zeek, and more! 💻⚙️
And guess what? Some extra goodies like BadBlood, domain-joined systems, and Kali are all waiting. 🎁💣 It’s like making it rain for your test environment! ☔💸
Once you’ve got everything set up, you’ll be diving into a fresh batch of data in Splunk in no time! 📊🔍
Happy hunting, and may the logs be ever in your favor! 🕵️♂️🔐
Patrick Bareiß retweeted
🚨LOLRMM Update 🚂
You thought we were done? Nope.
🔥 Deduplication efforts are in the works
🔥 Experts (@_josehelps) are reviewing the site code to ensure we deliver the most epic LOLRMM experience.
🔥 More and more RMMs are being completed (@Kostastsale @nas_bench )
🔥 Who wants more Sigma rules? Because, we got them. Autogenerated + easily found on individual RMM pages.
Hoping the efforts are final soon and we can get this out the door! Be warned, it's a lot of data and we'll need lots of community ❤️ to make this 100%.
Teaser:
Patrick Bareiß retweeted
Will be showing open source "Splunk Attack Range" at Black Hat Arsenal 2024 in Las Vegas with my colleague Patrick Bareiß @bareiss_patrick #strt #splunkattackrange #splunk #splunkthreatresearchteam #blackhatusa #blackhatarsenal #blackhat blackhat.com/us-24/arsenal/s…
Patrick Bareiß retweeted
happy to share our latest #STRT Blog on #SnakeKeylogger! This includes the intriguing loader variant, Malware Analysis, TTPs we've extracted and a comprehensive list of our developed detections! 😊 #splunk #RE #int3 #blueteam #detectionengineering
splunk.com/en_us/blog/securi…
Patrick Bareiß retweeted
🚨 #Splunk Threat Research Team Release 4.18.0!🚨
✨ Key Updates:
🛡️ Kubernetes Security: Advanced detections for containerized environment threats, including unusual access and abuse scenarios.
🔒 Enhanced MFA Security in PingID: 4 new detections by Steven D., addressing critical aspects of digital authentication security.
🧩 Rhysida Ransomware Analytic Story: In-depth analytics for detecting Rhysida group behaviors and tactics.
🔄 Updated Analytics & Stories: Including NjRAT, RedLine Stealer, and firewall modifications.
🔍 Dive into detailed detections for Kubernetes abuses, multi-factor authentication challenges, and ransomware tactics.
Release: github.com/splunk/security_c…
Content: Research.Splunk.com
Patrick Bareiß retweeted
Excited to share the #STRT blog for #plugx malware. This blog includes deep dive analysis of this plugx variant, splunk detections and a python tool to extract the config and the headless payload. I hope it helps 😊 #malware #splunk #RE #blueteam int3
splunk.com/en_us/blog/securi…
Patrick Bareiß retweeted
happy to share the #STRT blog for detections and analysis of #asyncrat campaign. We also include some tips how you can extract the actual payload in its .bat script loader. 🙂 #asyncrat #malware #int3 #SplunkBlogs #splunk #RE
splunk.com/en_us/blog/securi…
Patrick Bareiß retweeted
I didn't want to mention it, but after my last SANS preso on hunting drivers, I've decided to build a site similar to LOLBAS project presenting all known vulnerable Windows drivers. More to come.
Until then, give it a follow.
github.com/LOLDrivers-Projec…
Patrick Bareiß retweeted
Splunk STRT researchers describe the different tactics, techniques and procedures mapped to the ATT&CK framework leveraged by Agent Tesla remote access trojan. splunk.com/en_us/blog/securi…
Patrick Bareiß retweeted
Excited to share that the #STRT just published a breakdown and @splunk 🛡️detections for #AgentTesla. This #RAT has been at the top for sandboxes like @abuse_ch and @anyrun_app for years. Hope this helps analysts better understand and defend against it! splunk.com/en_us/blog/securi…
Patrick Bareiß retweeted
Come to Miami in May for @hackmiami Check out the courses and trainers coming into town! @rodsoto @christruncer @Gr1mmie @jayeshsch @bareiss_patrick @ProfKilroy and the @BCSecurity1 crew @Cx01N_ @_Hubbl3
hackmiami.com/
Patrick Bareiß retweeted
🎉We have hit 1000 analytics on @Splunk Security Content research.splunk.com .. ⚠️ granted this includes experimental and deprecated detections.
Patrick Bareiß retweeted
Happy to share that @splunk Attack Range 2.0 is officially released 🎉 with a ton of new features! Huge thanks to every single one of our users 🙇, we continue to improve and keep the project open/free. Give us a star on GitHub if you like it. #STRT splunk.com/en_us/blog/securi…
Patrick Bareiß retweeted
Super proud of this post by the team 🎉! It is a culmination of 2 years of trying to build a scalable detection testing CI/CD process 🏗 for @splunk Security Content. If you followed our journey in part 1,2, and 3 this is the closer to the series! Enjoy 😊 splunk.com/en_us/blog/securi…
Patrick Bareiß retweeted
Call for user contributions at the EU ATT&CK Workshop. attack-community.org/event/. Share with the community what works well for you and meet @jamieantisocial @blubbfiction @bareiss_patrick @_saadk @adulau and many others to discuss about their projects.
Patrick Bareiß retweeted
The pySigma Splunk backend now supports generation of tstats queries with CIM data model mappings. Thanks to @bareiss_patrick from @splunk for the contribution!
It's already integrated in the latest version of Sigma CLI that is available on PyPI!
Patrick Bareiß retweeted
Wanted to share that @Splunk Attack Range has support for the Aurora Agent built in.
In the conf, just flip the switch -
github.com/splunk/attack_ran…
#BlueTeam
github.com/splunk/attack_ran…
We've just released the free version of our #Sigma-based endpoint agent Aurora 🙌
I'm very glad that we can provide the community with such a powerful tool 💪
My plan is to produce tweets, blog posts, and some videos on use cases & tweaks in the coming weeks, so stay tuned ⚡️




























