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<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">CISA, the Federal Bureau of Investigation (FBI), the Department of the Treasury (Treasury), and the Financial Crimes Enforcement Network (FinCEN) have released a (TLP:WHITE)
<b><a href="https://www.cisa.gov/uscert/ncas/alerts/aa22-152a">joint Cybersecurity Advisory: Karakurt Data Extortion Group</a>.</b></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">This advisory provides information on the Karakurt data extortion group, also known as the Karakurt Team and Karakurt Lair. Karakurt actors have employed a variety of tactics, techniques, and
procedures (TTPs), creating significant challenges for defense and mitigation. Karakurt victims have not reported encryption of compromised machines or files; rather, Karakurt actors have claimed to steal data and threatened to auction it off or release it
to the public unless they receive payment of the demanded ransom. Known ransom demands have ranged from $25,000 to $13,000,000 in Bitcoin, with payment deadlines typically set to expire within a week of first contact with the victim.</span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-family:"Arial",sans-serif"> </span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-family:"Arial",sans-serif">Karakurt actors have typically provided screenshots or copies of stolen file directories as proof of stolen data. Karakurt actors have contacted victims’ employees, business partners, and clients
with harassing emails and phone calls to pressure the victims to cooperate. The emails have contained examples of stolen data, such as social security numbers, payment accounts, private company emails, and sensitive business data belonging to employees or
clients. Upon payment of ransoms, Karakurt actors have provided some form of proof of deletion of files and, occasionally, a brief statement explaining how the initial intrusion occurred.</span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-family:"Arial",sans-serif"> </span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-family:"Arial",sans-serif">Prior to January 5, 2022, Karakurt operated a leaks and auction website found at
<a href="https://urldefense.us/v3/__https:/karakurt*.*group__;W10!!BClRuOV5cvtbuNI!U12ro38ppWpaeGqO9wqy8sve2TPSw-EFp6bqhaYEd70v0uSUITDrYJ6_eyIfHxx8GiYpCeU$">
https://karakurt[.]group</a>. The domain and IP address originally hosting the website went offline in the spring 2022. The website is no longer accessible on the open internet, but has been reported to be located elsewhere in the deep web and on the dark web.
As of May 2022, the website contained several terabytes of data purported to belong to victims across North America and Europe, along with several “press releases” naming victims who had not paid or cooperated, and instructions for participating in victim
data “auctions.”</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:l1 level1 lfo3"><span style="font-family:"Arial",sans-serif">Review the
<a href="https://www.cisa.gov/uscert/ncas/alerts/aa22-152a">joint CSA</a>, including technical details and indicators of compromise, and apply the mitigation recommendations</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 be reported to CISA at
<a href="https://us-cert.cisa.gov/report">https://us-cert.cisa.gov/report</a>, <u>
<a href="mailto:report@cisa.gov">report@cisa.gov</a></u>, or (888) 282-0870 and/or to the FBI via your local
<a href="https://urldefense.us/v3/__https:/www.fbi.gov/contact-us/field-offices__;!!BClRuOV5cvtbuNI!U12ro38ppWpaeGqO9wqy8sve2TPSw-EFp6bqhaYEd70v0uSUITDrYJ6_eyIfHxx8PaKQJNQ$">
FBI field office</a> or 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"> </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"><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@01D8759F.E08349E0"><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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