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<p class="MsoNormal">FYSA<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><b><span style="color:#1F497D">Theresa A. Masse<o:p></o:p></span></b></p>
<p class="MsoNormal"><span style="font-size:10.0pt;color:#1F497D">Cyber Security Advisor, Region 10 (Oregon)
<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.0pt;color:#1F497D">Cybersecurity and Infrastructure Security Agency<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.0pt;color:#1F497D">Department of Homeland Security<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.0pt;color:#1F497D">Phone: (503) 930-5671
<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.0pt;color:#1F497D">Email:</span><span style="font-size:10.0pt;color:#777777">
</span><a href="mailto:theresa.masse@cisa.dhs.gov"><span style="font-size:10.0pt">theresa.masse@cisa.dhs.gov</span></a><u><span style="font-size:10.0pt;color:#0760C1"><o:p></o:p></span></u></p>
<p class="MsoNormal"><span style="color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><img border="0" width="97" height="97" style="width:1.0138in;height:1.0138in" id="Picture_x0020_3" src="cid:image001.png@01D87BE1.03024C90"><span style="color:#1F497D"><o:p></o:p></span></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<table class="MsoNormalTable" border="0" cellspacing="0" cellpadding="0" style="border-collapse:collapse">
<tbody>
<tr>
<td width="623" valign="top" style="width:467.5pt;padding:0in 5.4pt 0in 5.4pt">
<p class="MsoNormal"><span style="font-size:11.5pt;font-family:"Arial",sans-serif;color:#1D1C1D"><img border="0" width="602" height="153" style="width:6.2708in;height:1.5902in" id="Picture_x0020_4" src="cid:image002.png@01D87BE1.617BA1E0"></span><span style="font-size:11.5pt;font-family:"Arial",sans-serif;color:#1D1C1D"><o:p></o:p></span></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><span style="color:#1D1C1D">Due to ongoing exploitation of the Confluence RCE vulnerability (CVE-2022-26124), CISA would like to point to a few notable examples of TLP</span>:<span style="color:#1D1C1D">W</span>HITE<span style="color:#1D1C1D">
open source threat intel.<o:p></o:p></span></p>
<ul type="disc">
<li class="MsoListParagraph" style="color:#0563C1;mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;margin-left:-.25in;mso-list:l0 level1 lfo3">
<span class="MsoHyperlink"><a href="https://www.volexity.com/blog/2022/06/02/zero-day-exploitation-of-atlassian-confluence/">https://www.volexity.com/blog/2022/06/02/zero-day-exploitation-of-atlassian-confluence/</a><o:p></o:p></span></li><ul type="circle">
<li class="MsoListParagraph" style="mso-margin-top-alt:auto;margin-bottom:12.0pt;margin-left:-.25in;mso-list:l0 level2 lfo3">
<span style="color:#1D1C1D">CISA recommends reviewing the Yara rules at the bottom of the blog to detect webshell activity</span><o:p></o:p></li></ul>
<li class="MsoListParagraph" style="color:#500050;mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;margin-left:-.25in;mso-list:l0 level1 lfo3">
<span style="color:windowtext">S</span><span style="color:#1D1C1D">nort signatures (expected to be added to the public rule set</span><span style="color:windowtext">
</span><span style="color:#1D1C1D">on <a href="http://snort.org" target="_blank">snort.org</a> today) from Cisco Talos</span><o:p></o:p></li><ul type="circle">
<li class="MsoListParagraph" style="color:#500050;mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;margin-left:-.25in;mso-list:l0 level2 lfo3">
<span style="color:#1D1C1D">See attachment for full text of snort rules </span><o:p></o:p></li><li class="MsoListParagraph" style="color:#500050;mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;margin-left:-.25in;mso-list:l0 level2 lfo3">
<span style="color:#1D1C1D">CISA recommends periodically checking <a href="http://snort.org" target="_blank">
snort.org</a> in case there are updates to the rules.</span><o:p></o:p></li><li class="MsoListParagraph" style="color:#500050;mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;margin-left:-.25in;mso-list:l0 level2 lfo3">
<span style="color:#1D1C1D">SIDs:</span><o:p></o:p></li><ul type="square">
<li class="MsoListParagraph" style="color:#500050;mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;margin-left:-.25in;mso-list:l0 level3 lfo3">
<span style="color:#1D1C1D"><a href="https://snort.org/rule_docs/1-59927" target="_blank">sid 1:59927</a></span><o:p></o:p></li><li class="MsoListParagraph" style="color:#500050;mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;margin-left:-.25in;mso-list:l0 level3 lfo3">
<span style="color:#1D1C1D"><a href="https://snort.org/rule_docs/1-59928" target="_blank">sid 1:59928</a></span><o:p></o:p></li><li class="MsoListParagraph" style="color:#500050;mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;margin-left:-.25in;mso-list:l0 level3 lfo3">
<span style="color:#1D1C1D"><a href="https://snort.org/rule_docs/1-59929" target="_blank">sid 1:59929</a></span><o:p></o:p></li><li class="MsoListParagraph" style="color:#500050;mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;margin-left:-.25in;mso-list:l0 level3 lfo3">
<span style="color:#1D1C1D"><a href="https://snort.org/rule_docs/1-59930" target="_blank">sid 1:59930</a></span><o:p></o:p></li><li class="MsoListParagraph" style="color:#500050;mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;margin-left:-.25in;mso-list:l0 level3 lfo3">
<span style="color:#1D1C1D"><a href="https://snort.org/rule_docs/1-59931" target="_blank">sid 1:59931</a></span><o:p></o:p></li><li class="MsoListParagraph" style="color:#500050;mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;margin-left:-.25in;mso-list:l0 level3 lfo3">
<span style="color:#1D1C1D"><a href="https://snort.org/rule_docs/1-59932" target="_blank">sid 1:59932</a></span><o:p></o:p></li><li class="MsoListParagraph" style="color:#500050;mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;margin-left:-.25in;mso-list:l0 level3 lfo3">
<span style="color:#1D1C1D"><a href="https://snort.org/rule_docs/1-59933" target="_blank">sid 1:59933</a></span><o:p></o:p></li><li class="MsoListParagraph" style="color:#500050;mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;margin-left:-.25in;mso-list:l0 level3 lfo3">
<span style="color:#1D1C1D"><a href="https://snort.org/rule_docs/1-59934" target="_blank">sid 1:59934</a></span><o:p></o:p></li><li class="MsoListParagraph" style="color:#500050;mso-margin-top-alt:auto;margin-bottom:12.0pt;margin-left:-.25in;mso-list:l0 level3 lfo3">
<span style="color:#1D1C1D"><a href="https://snort.org/rule_docs/1-59941" target="_blank">sid 1:59941</a></span><o:p></o:p></li></ul>
</ul>
</ul>
<p style="margin:0in"><i>As a reminder, all organizations should report incidents and anomalous activity to CISA, via secure message through the
</i><a href="https://us-cert.cisa.gov/forms/report"><i>Incident Reporting System | CISA</i></a><i>. Questions and concerns may be directed to CISA Central at
</i><a href="mailto:Central@cisa.dhs.gov" target="_blank"><i>Central@cisa.dhs.gov</i></a><i> or at 1-888-282-0870.</i>
<o:p></o:p></p>
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