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RedNova: From Arbitrary File Write to Command Execution Using COM in Windows Months ago, I wrote a post ( about the unique method used in the RedSun exploit to turn a file write into command execution by using a COM object that can be triggered by a low-privileged user...

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Haidar

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13,714 görüntüleme • 1 ay önce •via X (Twitter)

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Haidar profil fotoğrafı
Haidar1 ay önce

Sorry I put the wrong link, the correct link:

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Max1 ay önce

I think this is the correct URL:

Haidar profil fotoğrafı
Haidar1 ay önce

Oh thanks, I will correct it

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So here is new local privilege escalation zero-day I discovered, not patched yet too :). In simple terms, if you have a service like RDP that exposes an RPC server, there many system services running as SYSTEM connect to it as RPC clients. If that service is turned off (RDP is off by default), it seems that any other process in Windows can expose the same RPC server using the same endpoint. Now all the RPC calls from that SYSTEM processes will come to this fake server and If the process that deployed the server has SeImpersonatePrivilege, it can escalate to SYSTEM by impersonate the RPC client. In the white paper below, I describe five exploit paths you can abuse. However it's architecture problem and maybe there are more. It's Not A Potato
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So here is new local privilege escalation zero-day I discovered, not patched yet too :). In simple terms, if you have a service like RDP that exposes an RPC server, there many system services running as SYSTEM connect to it as RPC clients. If that service is turned off (RDP is off by default), it seems that any other process in Windows can expose the same RPC server using the same endpoint. Now all the RPC calls from that SYSTEM processes will come to this fake server and If the process that deployed the server has SeImpersonatePrivilege, it can escalate to SYSTEM by impersonate the RPC client. In the white paper below, I describe five exploit paths you can abuse. However it's architecture problem and maybe there are more. It's Not A Potato

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Creating COM hijacking payloads has never been easier than with RustPack! With COM Hijacking, you can persist on a target system by 'living' in trusted user processes, such as the Chrome browser. You only need to bring one DLL. When the user opens Chrome, for example, a C2 connection is established. 🔥 Achieving stable payload execution without crashing or freezing the target system requires an understanding of what is relevant. Additionally, lots of processes may attempt to load the hijacked CLSID; you don't want to receive 43 beacons per day from the same system. Limiting execution to a defined process is important here! 🎓 What about combining that payload with environmental keying, anti-emulation, anti-sandboxing, as well as AMSI and ETW bypasses? Doing all this yourself will take time. With RustPack, however, you can create such a payload in a few seconds, and it's stable! The video demonstrates how to create a payload DLL to execute Adaptix C2 shellcode in the Chrome browser. 🛸
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Creating COM hijacking payloads has never been easier than with RustPack! With COM Hijacking, you can persist on a target system by 'living' in trusted user processes, such as the Chrome browser. You only need to bring one DLL. When the user opens Chrome, for example, a C2 connection is established. 🔥 Achieving stable payload execution without crashing or freezing the target system requires an understanding of what is relevant. Additionally, lots of processes may attempt to load the hijacked CLSID; you don't want to receive 43 beacons per day from the same system. Limiting execution to a defined process is important here! 🎓 What about combining that payload with environmental keying, anti-emulation, anti-sandboxing, as well as AMSI and ETW bypasses? Doing all this yourself will take time. With RustPack, however, you can create such a payload in a few seconds, and it's stable! The video demonstrates how to create a payload DLL to execute Adaptix C2 shellcode in the Chrome browser. 🛸

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Gemini skills in Chrome are insanely powerful?! You can just write instructions and Gemini will be able to take any action over and over. 1. Create by typing "/" in the Gemini panel 2. Write your instructions 3. Type "/[skill-name]" And Gemini will automatically work for you by using the skill. So you can leverage it to - Scrap information - Take action in a specific web app - Anything you can perform in a browser basically Keep in mind that you can even use your emails or your Google account as a context... Which can be VERY useful.

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