diff --git a/sdk/monitor/Azure.Monitor.OpenTelemetry.AspNetCore/src/Azure.Monitor.OpenTelemetry.AspNetCore.csproj b/sdk/monitor/Azure.Monitor.OpenTelemetry.AspNetCore/src/Azure.Monitor.OpenTelemetry.AspNetCore.csproj
index 80cc7efc0aee..7d67fcf90ad7 100644
--- a/sdk/monitor/Azure.Monitor.OpenTelemetry.AspNetCore/src/Azure.Monitor.OpenTelemetry.AspNetCore.csproj
+++ b/sdk/monitor/Azure.Monitor.OpenTelemetry.AspNetCore/src/Azure.Monitor.OpenTelemetry.AspNetCore.csproj
@@ -27,5 +27,9 @@
   <ItemGroup>
     <Compile Include="..\..\Azure.Monitor.OpenTelemetry.Exporter\src\Internals\ExceptionExtensions.cs" LinkBase="Shared" />
   </ItemGroup>
+  <!-- Shared source from Azure.Core -->
+  <ItemGroup>
+    <Compile Include="$(AzureCoreSharedSources)TrimmingAttribute.cs" LinkBase="Shared" />
+  </ItemGroup>
   
 </Project>
diff --git a/sdk/monitor/Azure.Monitor.OpenTelemetry.AspNetCore/src/Vendoring/Shared/Shims/UnconditionalSuppressMessageAttribute.cs b/sdk/monitor/Azure.Monitor.OpenTelemetry.AspNetCore/src/Vendoring/Shared/Shims/UnconditionalSuppressMessageAttribute.cs
deleted file mode 100644
index 0d2c776278d4..000000000000
--- a/sdk/monitor/Azure.Monitor.OpenTelemetry.AspNetCore/src/Vendoring/Shared/Shims/UnconditionalSuppressMessageAttribute.cs
+++ /dev/null
@@ -1,98 +0,0 @@
-// <copyright file="UnconditionalSuppressMessageAttribute.cs" company="OpenTelemetry Authors">
-// Copyright The OpenTelemetry Authors
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-//
-//     http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
-// </copyright>
-#nullable enable
-
-namespace System.Diagnostics.CodeAnalysis;
-
-/// <summary>
-/// Suppresses reporting of a specific rule violation, allowing multiple suppressions on a
-/// single code artifact.
-/// </summary>
-/// <remarks>
-/// <see cref="UnconditionalSuppressMessageAttribute"/> is different than
-/// <see cref="SuppressMessageAttribute"/> in that it doesn't have a
-/// <see cref="ConditionalAttribute"/>. So it is always preserved in the compiled assembly.
-/// </remarks>
-[AttributeUsage(AttributeTargets.All, Inherited = false, AllowMultiple = true)]
-internal sealed class UnconditionalSuppressMessageAttribute : Attribute
-{
-    /// <summary>
-    /// Initializes a new instance of the <see cref="UnconditionalSuppressMessageAttribute"/>
-    /// class, specifying the category of the tool and the identifier for an analysis rule.
-    /// </summary>
-    /// <param name="category">The category for the attribute.</param>
-    /// <param name="checkId">The identifier of the analysis rule the attribute applies to.</param>
-    public UnconditionalSuppressMessageAttribute(string category, string checkId)
-    {
-        this.Category = category;
-        this.CheckId = checkId;
-    }
-
-    /// <summary>
-    /// Gets the category identifying the classification of the attribute.
-    /// </summary>
-    /// <remarks>
-    /// The <see cref="Category"/> property describes the tool or tool analysis category
-    /// for which a message suppression attribute applies.
-    /// </remarks>
-    public string Category { get; }
-
-    /// <summary>
-    /// Gets the identifier of the analysis tool rule to be suppressed.
-    /// </summary>
-    /// <remarks>
-    /// Concatenated together, the <see cref="Category"/> and <see cref="CheckId"/>
-    /// properties form a unique check identifier.
-    /// </remarks>
-    public string CheckId { get; }
-
-    /// <summary>
-    /// Gets or sets the scope of the code that is relevant for the attribute.
-    /// </summary>
-    /// <remarks>
-    /// The Scope property is an optional argument that specifies the metadata scope for which
-    /// the attribute is relevant.
-    /// </remarks>
-    public string? Scope { get; set; }
-
-    /// <summary>
-    /// Gets or sets a fully qualified path that represents the target of the attribute.
-    /// </summary>
-    /// <remarks>
-    /// The <see cref="Target"/> property is an optional argument identifying the analysis target
-    /// of the attribute. An example value is "System.IO.Stream.ctor():System.Void".
-    /// Because it is fully qualified, it can be long, particularly for targets such as parameters.
-    /// The analysis tool user interface should be capable of automatically formatting the parameter.
-    /// </remarks>
-    public string? Target { get; set; }
-
-    /// <summary>
-    /// Gets or sets an optional argument expanding on exclusion criteria.
-    /// </summary>
-    /// <remarks>
-    /// The <see cref="MessageId "/> property is an optional argument that specifies additional
-    /// exclusion where the literal metadata target is not sufficiently precise. For example,
-    /// the <see cref="UnconditionalSuppressMessageAttribute"/> cannot be applied within a method,
-    /// and it may be desirable to suppress a violation against a statement in the method that will
-    /// give a rule violation, but not against all statements in the method.
-    /// </remarks>
-    public string? MessageId { get; set; }
-
-    /// <summary>
-    /// Gets or sets the justification for suppressing the code analysis message.
-    /// </summary>
-    public string? Justification { get; set; }
-}