Patrick Bareiß (@bareiss_patrick) header
Patrick Bareiß (@bareiss_patrick) profile picture

Principal Security Research Engineer @Splunk Speaker: DeepSec Vienna, BlackHat Europe Arsenal

München, Bayern
Joined October 2015
Photo by Patrick Bareiß (@bareiss_patrick)Photo by Patrick Bareiß (@bareiss_patrick)Photo by Patrick Bareiß (@bareiss_patrick)Photo by Patrick Bareiß (@bareiss_patrick)Photo by Patrick Bareiß (@bareiss_patrick)Photo by Patrick Bareiß (@bareiss_patrick)
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…
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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
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Patrick Bareiß retweeted
New Splunk Attack Range got me like : lol github.com/splunk/attack_ran…
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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! 🕵️‍♂️🔐
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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:
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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…
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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…
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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
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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…
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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…
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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…
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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…
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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…
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🎉We have hit 1000 analytics on @Splunk Security Content research.splunk.com .. ⚠️ granted this includes experimental and deprecated detections.
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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…
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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…
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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!
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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 ⚡️
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