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<div class="WordSection1">
<p class="MsoNormal">FYSA<o:p></o:p></p>
<div>
<p class="MsoNormal"><span style="font-family:"Arial",sans-serif"> </span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-family:"Arial",sans-serif"><a href="https://urldefense.us/v3/__https:/software.broadcom.com/__;!!BClRuOV5cvtbuNI!UHEYGeccVKV16m2M8HtDroGyXyBzWaOnu7WmoetZaW5SXcMzQrQ6GTVttSy92-DCba0aEXQ$">Broadcom Software</a>—an industry
member of CISA’s <a href="https://www.cisa.gov/jcdc">Joint Cyber Defense Collaborative (JCDC)</a>— has released (TLP:WHITE) <a href="https://urldefense.us/v3/__https:/symantec-enterprise-blogs.security.com/blogs/threat-intelligence/daxin-backdoor-espionage__;!!BClRuOV5cvtbuNI!UHEYGeccVKV16m2M8HtDroGyXyBzWaOnu7WmoetZaW5SXcMzQrQ6GTVttSy92-DCIQ9sv3g$"><b>Daxin:
Stealthy Backdoor Designed for Attacks Against Hardened Networks</b></a> </span>
<o:p></o:p></p>
<p class="MsoNormal"><span style="font-family:"Arial",sans-serif"> </span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-family:"Arial",sans-serif">The publication uncovers an advanced persistent threat (APT) campaign against select international governments and other critical infrastructure targets. The Symantec Threat Hunter team, part
of Broadcom Software, worked with CISA to engage with multiple international governments targeted with Daxin malware and assisted in detection and remediation.</span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-family:"Arial",sans-serif"> </span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-family:"Arial",sans-serif">Daxin malware is a highly sophisticated rootkit backdoor with complex, stealthy command and control (C2) functionality that enables remote actors to communicate with secured devices not connected
directly to the internet. Daxin appears to be optimized for use against hardened targets, allowing the actors to deeply burrow into targeted networks and exfiltrate data without raising suspicions.
</span><o:p></o:p></p>
<p class="MsoNormal"><b><span style="font-family:"Arial",sans-serif"> </span></b><o:p></o:p></p>
<p class="MsoNormal"><b><span style="font-family:"Arial",sans-serif">CISA Recommendations:</span></b><o:p></o:p></p>
<ul style="margin-top:0in" type="disc">
<li class="MsoNormal" style="mso-list:l0 level1 lfo3"><u><span style="font-family:"Arial",sans-serif">CISA urges organizations</span></u><span style="font-family:"Arial",sans-serif"> to review <a href="https://urldefense.us/v3/__https:/symantec-enterprise-blogs.security.com/blogs/threat-intelligence/daxin-backdoor-espionage__;!!BClRuOV5cvtbuNI!UHEYGeccVKV16m2M8HtDroGyXyBzWaOnu7WmoetZaW5SXcMzQrQ6GTVttSy92-DCIQ9sv3g$">Daxin:
Stealthy Backdoor Designed for Attacks Against Hardened Networks</a> for more information and for a list of indicators of compromise that may aid in the detection of this activity</span><o:p></o:p></li></ul>
<p class="MsoNormal"><span style="font-family:"Arial",sans-serif"> </span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-family:"Arial",sans-serif">We kindly request any incidents or anomalous activity related to this message be reported to CISA at
<a href="https://us-cert.cisa.gov/report">https://us-cert.cisa.gov/report</a>, <a href="mailto:Central@cisa.dhs.gov">
Central@cisa.dhs.gov</a>, or (888) 282-0870 and/or to the FBI via your local FBI field office, the FBI’s 24/7 CyWatch at (855) 292-3937, or
<a href="mailto:CyWatch@fbi.gov">CyWatch@fbi.gov</a>.</span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-family:"Arial",sans-serif"> <o:p></o:p></span></p>
</div>
<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_1" src="cid:image007.png@01D82C8D.DBA84AC0"><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>
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