Jump to content
YOUR-AD-HERE
HOSTING
TOOLS
SERVICE

Search the Community

Showing results for tags 'amsi.fail:'.

  • Search By Tags

    Type tags separated by commas.
  • Search By Author

Content Type


Forums

  • Staff Control
    • Staff Announcements
  • General doubts | News
    • General doubts
    • News
  • Hacking | Remote Administration | Bugs & Exploits
    • Hacking
    • Remote Administration
    • Bugs & Exploits
  • Programming | Web | SEO | Prefabricated applications
    • General Programming
    • Web Programming
    • Prefabricated Applications
    • SEO
  • Pentesting Zone
    • Pentesting Accounts
    • Reverse Engineering
  • Security & Anonymity
    • Security
    • Wireless Security
    • Web Security
    • Anonymity
  • Operating Systems | Hardware | Programs
    • Operating systems
    • Hardware
    • PC programs
    • iOS
    • Android
  • Graphic Design
    • Graphic Design
  • vBCms Comments
  • live stream tv
    • live stream tv
  • Marketplace
    • Sell
    • Services
    • Request
  • Pentesting Premium
    • Pentesting Accounts
  • Modders Section
    • Source Codes
    • Manuals | Videos
    • Tools
    • Others
  • PRIV8-Section
    • Exploits
    • Accounts|Dumps
    • Crypter|Binder|Bots
    • Tutorials|Videos
    • Cracked Tools
    • Make Money
    • More Tools
    • Databeses
    • Ebooks
  • Pentesting Zone PRIV8
    • Pentesting Accounts
    • Reverse Engineering
    • Cracker Preview Area
  • Carding Zone PRIV8
    • Carding
    • Phishing
    • Defacing
    • Doxing
    • Special User Premium Preview Area
  • Recycle Bin
    • Recycle
  • Null3D's Nulled Group

Product Groups

  • PRIV8
  • Advertising
  • Access Basic
  • Seller
  • Services

Find results in...

Find results that contain...


Date Created

  • Start

    End


Last Updated

  • Start

    End


Filter by number of...

Joined

  • Start

    End


Group


About Me

Found 1 result

  1. C# Azure Function with an HTTP trigger that generates obfuscated PowerShell snippets that break or disable AMSI for the current process. The snippets are randomly selected from a small pool of techniques/variations before being obfuscated. Every snippet is obfuscated at runtime/request so that no generated output share the same signatures. What is AMSI? As f-secure explained in one of their excellent blog-posts: AMSI is an interface on which applications or services (third-party included) are able to scan a script’s content for malicious usage. If a signature in the script is registered by the AMSI antimalware service provider (Windows Defender by default), it will be blocked. To put this into context, consider the following steps PowerShell takes to integrate with AMSI: When a PowerShell process is created, AMSI.DLL is loaded from disk into its address space. Within AMSI.DLL, there’s a function known as AmsiScanBuffer(), essentially the function used to scan a script’s content. In the PowerShell command prompt, any supplied content would first be sent to AmsiScanBuffer(), before any execution takes place. Subsequently, AmsiScanBuffer() would check with the registered anti-virus to determine if any signatures have been created. If the content is deemed malicious, it would be blocked. Since AMSI relies on being loaded within the process executing the actual script, techniques to break or patch specific functions within amsi.dll are well known. [hide][Hidden Content]]
×
×
  • Create New...

Important Information

We have placed cookies on your device to help make this website better. You can adjust your cookie settings, otherwise we'll assume you're okay to continue.