Sylvain Heiniger (@sploutchy) profile picture

https://xitter.cf/t.co/j1RauZBiTh

Suisse
Joined December 2009
Photo by Sylvain Heiniger (@sploutchy)Photo by Sylvain Heiniger (@sploutchy)Photo by Sylvain Heiniger (@sploutchy)Photo by Sylvain Heiniger (@sploutchy)Photo by Sylvain Heiniger (@sploutchy)Photo by Sylvain Heiniger (@sploutchy)Photo by Sylvain Heiniger (@sploutchy)Photo by Sylvain Heiniger (@sploutchy)Photo by Sylvain Heiniger (@sploutchy)Photo by Sylvain Heiniger (@sploutchy)
Ups and downs of #redteam engagements. When the standard payloads don’t cut it, innovation wins. Learn how we misused a screenshot tool to load shellcode… at the fifth attempt!… blog.compass-security.com/20…
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Sylvain Heiniger retweeted
I am excited to share with you my latest research - "DCOM Upload & Execute" An advanced lateral movement technique to upload and execute custom payloads on remote targets Forget about PSEXEC and dive in! deepinstinct.com/blog/forget… github.com/deepinstinct/DCOM…
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Sylvain Heiniger retweeted
Oh, you didn't know? Cool kids are now relaying Kerberos over SMB 😏 Check out our latest blogpost by @hugow_vincent to discover how to perform this attack: synacktiv.com/publications/r…
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COM is old but gold—for attackers! 🚨 In our latest blog, Sylvain Heiniger (@sploutchy) exposes a privilege escalation vulnerability in the Google Chrome updater. Want to know how cross-session EoP still happens today? Check it out! #COM blog.compass-security.com/20…
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DCOM cross-session coercion + Kerberos = 💣 We took a closer look at the attacks discovered by @decoder_it and @D1iv3 earlier this year and made a PoC in Python! Curious? Full blog post here: blog.compass-security.com/20… #potato #impacket
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You like device code phishing? You will like Felix Aeppli’s latest research even more. He shows how to backdoor Entra ID phished accounts by adding a new sign-in method. Details and PoC here: blog.compass-security.com/20…
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Collision – Compass Security was able to execute their stack overflow attack against the Synology BC500. However, the exploit they used was previously known. They still earn $3,750 and 0.75 Master of Pwn points. #Pwn2Own
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Outlook for Windows can be tricked into displaying a fake domain, but open another one. Add a <base> tag with a fake domain + left-to-right mark (U+200E) Links in <a> tags will show the fake domain, but open the real domain. No need to buy .zip! :) Convincing #phishing #redteam
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Sylvain Heiniger retweeted
We did it again with #LocalPotato! A not-so-common NTLM reflection attack allowing for arbitrary read/write. Basically EoP from user to SYSTEM. Tracked as #CVE-2023-21746 - Windows NTLM EoP Soon more details --> localpotato.com cc @splinter_code
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🆕More personal news here .. I want to share that the Impacket project is moving to @fortraofficial's @CoreSecurity! It will now be part of their open source portfolio, and funded with a team of very talented security professionals. github.com/fortra/impacket #impacket
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Recordings of #blackalps22 are available here: blackalps.ch/ba-22/talks.php
Next week I will present a #talk at #BlackHat Europe 2022 on how to automate the search of RPC functions allowing to coerce authentications on #Windows. Alongside this talk, I'm publishing a brand new version of #Coercer! ➡️Check it out here: github.com/p0dalirius/Coerce…
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Sylvain Heiniger retweeted
Found an vhdx/vmdk/vhd file in a network share? Volumiser from @_EthicalChaos_ gets you covered to exfiltrate e.G. SAM/SYSTEM to compromise the system via Administrator Pass-The-Hash: github.com/CCob/Volumiser Really easy and intuitive to use 👏
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Sylvain Heiniger retweeted
Si tu as aidé une dame à vélo aujourd'hui devant un tram à Genève, peut-être tu as perdu cet airpod qui est tombé par terre. #airpod #28.11.2022 #geneve #geneva xitter.cf/JJPomareta/status/1597…
At @BlackAlpsConf, our analyst Sylvain Heiniger @sploutchy presented a new attack path to AD CS. Read his blog post for details and tools updates. #adcs #esc11 #ntlmrelay #rpc #msrpc blog.compass-security.com/20…
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At the end of my talk @BlackHatEvents #Europe 2022, I'll release a completely refactored version of #Coercer. It will include lots of new features useful for pentesters and researchers. 🎉🥳 Star this repository github.com/p0dalirius/Coerce… and/or follow me so you don't miss it!👌
#BHEU "Searching for RPC Functions to Coerce Authentications in Microsoft Protocols" briefing will explore a way to automate this process by parsing Microsoft's OpenSpecs online documentation as well as Interface Definition Language code: bit.ly/3CWOJua
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Sylvain Heiniger retweeted
The last part of A New Attack Surface on MS Exchange - #ProxyRelay is out! Have also left some final thoughts on the Closing part. Hope you all enjoy this journey :D blog.orange.tw/2022/10/proxy…
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Weak passwords are a nightmare for corporate security. In his blog post, Felix Aeppli @_fxai shows how easy hashes can be cracked and what you can do to improve (without blaming the users). #passwords #cracking blog.compass-security.com/20…
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Spooler service disabled, RPC filters installed to prevent PetitPotam and File Server VSS Agent Service not installed but you still want to relay DC authentication to ADCS? Don't worry MS-DFSNM have your back ;) github.com/Wh04m1001/DFSCoer…
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➡️Part 3 of our series: Session Enumeration Through Remote Registry & Summary blog.compass-security.com/20…
➡️Part 2 of our series: Session Enumeration Through NetWkstaUserEnum & NetSessionEnum blog.compass-security.com/20…