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<div class="titlepage"><div><div>
<h2 class="title"><a id="microsoft-build-engine-loading-windows-credential-libraries"></a>Microsoft Build Engine Loading Windows Credential Libraries<a class="edit_me" rel="nofollow" title="Edit this page on GitHub" href="https://github.com/elastic/stack-docs/edit/7.8/docs/en/siem/detections/prebuilt-rules/rule-details/microsoft-build-engine-loading-windows-credential-libraries.asciidoc">edit</a></h2>
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<p>An instance of MSBuild, the Microsoft Build Engine, loaded DLLs (dynamically
linked libraries) responsible for Windows credential management. This technique
is sometimes used for credential dumping.</p>
<p><span class="strong strong"><strong>Rule type</strong></span>: query</p>
<p><span class="strong strong"><strong>Rule indices</strong></span>:</p>
<div class="ulist itemizedlist">
<ul class="itemizedlist">
<li class="listitem">
winlogbeat-*
</li>
</ul>
</div>
<p><span class="strong strong"><strong>Severity</strong></span>: high</p>
<p><span class="strong strong"><strong>Risk score</strong></span>: 73</p>
<p><span class="strong strong"><strong>Runs every</strong></span>: 5 minutes</p>
<p><span class="strong strong"><strong>Searches indices from</strong></span>: now-6m (<a href="/guide/en/elasticsearch/reference/7.8/common-options.html#date-math" class="ulink" target="_top">Date Math format</a>, see also <a class="xref" href="rules-ui-create.html#rule-schedule"><code class="literal">Additional look-back time</code></a>)</p>
<p><span class="strong strong"><strong>Maximum signals per execution</strong></span>: 100</p>
<p><span class="strong strong"><strong>Tags</strong></span>:</p>
<div class="ulist itemizedlist">
<ul class="itemizedlist">
<li class="listitem">
Elastic
</li>
<li class="listitem">
Windows
</li>
</ul>
</div>
<p><span class="strong strong"><strong>Version</strong></span>: 1</p>
<p><span class="strong strong"><strong>Added (Elastic Stack release)</strong></span>: 7.7.0</p>
<div class="section">
<div class="titlepage"><div><div>
<h3 class="title"><a id="_potential_false_positives_20"></a>Potential false positives<a class="edit_me" rel="nofollow" title="Edit this page on GitHub" href="https://github.com/elastic/stack-docs/edit/7.8/docs/en/siem/detections/prebuilt-rules/rule-details/microsoft-build-engine-loading-windows-credential-libraries.asciidoc">edit</a></h3>
</div></div></div>
<p>The Build Engine is commonly used by Windows developers but use by non-engineers
is unusual.</p>
</div>
<div class="section">
<div class="titlepage"><div><div>
<h3 class="title"><a id="_rule_query_41"></a>Rule query<a class="edit_me" rel="nofollow" title="Edit this page on GitHub" href="https://github.com/elastic/stack-docs/edit/7.8/docs/en/siem/detections/prebuilt-rules/rule-details/microsoft-build-engine-loading-windows-credential-libraries.asciidoc">edit</a></h3>
</div></div></div>
<div class="pre_wrapper lang-js">
<pre class="programlisting prettyprint lang-js">(winlog.event_data.OriginalFileName: (vaultcli.dll or SAMLib.DLL) or
dll.name: (vaultcli.dll or SAMLib.DLL)) and process.name: MSBuild.exe
and event.action: "Image loaded (rule: ImageLoad)"</pre>
</div>
</div>
<div class="section">
<div class="titlepage"><div><div>
<h3 class="title"><a id="_threat_mapping_31"></a>Threat mapping<a class="edit_me" rel="nofollow" title="Edit this page on GitHub" href="https://github.com/elastic/stack-docs/edit/7.8/docs/en/siem/detections/prebuilt-rules/rule-details/microsoft-build-engine-loading-windows-credential-libraries.asciidoc">edit</a></h3>
</div></div></div>
<p><span class="strong strong"><strong>Framework</strong></span>: MITRE ATT&CK<sup>TM</sup></p>
<div class="ulist itemizedlist">
<ul class="itemizedlist">
<li class="listitem">
<p>Tactic:</p>
<div class="ulist itemizedlist">
<ul class="itemizedlist">
<li class="listitem">
Name: Credential Access
</li>
<li class="listitem">
ID: TA0006
</li>
<li class="listitem">
Reference URL: <a href="https://attack.mitre.org/tactics/TA0006/" class="ulink" target="_top">https://attack.mitre.org/tactics/TA0006/</a>
</li>
</ul>
</div>
</li>
<li class="listitem">
<p>Technique:</p>
<div class="ulist itemizedlist">
<ul class="itemizedlist">
<li class="listitem">
Name: Credential Dumping
</li>
<li class="listitem">
ID: T1003
</li>
<li class="listitem">
Reference URL: <a href="https://attack.mitre.org/techniques/T1003/" class="ulink" target="_top">https://attack.mitre.org/techniques/T1003/</a>
</li>
</ul>
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</li>
</ul>
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