--===============1309461741163138589==
Content-Type: multipart/alternative; boundary="===============7241760500209710812=="
MIME-Version: 1.0

--===============7241760500209710812==
Content-Type: text/plain; charset="utf-8"
MIME-Version: 1.0
Content-Transfer-Encoding: quoted-printable

Cybersecurity and Infrastructure Security Agency (CISA)

You are subscribed to Cybersecurity Advisories for Cybersecurity and Infras= tructure Security Agency. This information has recently been updated and is=
now available.

CISA Releases Update to RESURGE Malware Analysis Report [ https://www.cisa.= gov/news-events/analysis-reports/ar25-087a ]

"02/26/2026 4:00 PM EST"

CISA released an update to its Malware Analysis Report (MAR) [ https://www.= cisa.gov/news-events/analysis-reports/ar25-087a ] involving RESURGE Malware=
, providing network defenders with deeper technical insights and enhanced t= ools to identify, mitigate and respond to this threat. CISA's updated analy= sis reveals that RESURGE can remain latent on systems until a remote actor = attempts to connect to the compromised device. As such, CISA assesses that = RESURGE may be dormant and undetected on Ivanti Connect Secure devices--con= tinuing to pose an active threat.=C2=A0

The original MAR highlighted RESURGE's capabilities to modify files, manipu= late integrity checks and deploy a web shell to the Ivanti boot disk. CISA'=
s updated analysis expands on RESURGE's sophisticated network-level evasion=
and authentication techniques, including the use of advanced cryptographic=
methods and forged Transport Layer Security certificates to enable covert = communications.=C2=A0

For more information, please visit MAR-25993211-r1.v1 Ivanti Connect Secure=
(RESURGE) | CISA [ https://www.cisa.gov/news-events/analysis-reports/ar25-= 087a ].

Please share your thoughts with us through this this anonymous survey [ htt= ps://cisasurvey.gov1.qualtrics.com/jfe/form/SV_9n4TtB8uttUPaM6?Source=3DGov= Deliveryhttps://www.cisa.gov/news-events/analysis-reports/ar25-087a ]. We a= ppreciate your feedback!

This product is provided subject to this=C2=A0Notification [ https://www.ci= sa.gov/notification ]=C2=A0and this=C2=A0Privacy & Use=C2=A0policy [ https:= //www.cisa.gov/privacy-policy ].

body { font-size: 1em; font-family: Arial, Verdana, sans-serif; font-weight=
: normal; font-style: normal; color: #333333; }=20

Having trouble viewing this message?=C2=A0View it as a webpage [ https://co= ntent.govdelivery.com/accounts/USDHSCISA/bulletins/40b929f ].=C2=A0 [ https= ://content.govdelivery.com/accounts/USDHS/bulletins/292141e ]

You are subscribed to updates from the Cybersecurity and Infrastructure Sec= urity Agency [ https://www.cisa.gov ] (CISA)
Manage Subscriptions [ https://public.govdelivery.com/accounts/USDHSCISA/su= bscriber/edit?preferences=3Dtrue#tab1 ]=C2=A0=C2=A0|=C2=A0=C2=A0Privacy Pol= icy [ https://www.cisa.gov/privacy-policy ]=C2=A0=C2=A0|=C2=A0 Help [ https= ://subscriberhelp.granicus.com/s/article/Subscriber-Help-Center ] [ https:/= /insights.govdelivery.com/Communications/Subscriber_Help_Center ]

Connect with CISA:=20
Facebook [ https://www.facebook.com/CISA ]=C2=A0 |=C2=A0 Twitter [ https://= twitter.com/CISAgov ]=C2=A0 |=C2=A0 Instagram [ https://Instagram.com/cisag=
ov ]=C2=A0 |=C2=A0 LinkedIn [ https://www.linkedin.com/company/cybersecurit= y-and-infrastructure-security-agency ]=C2=A0 |=C2=A0=C2=A0 YouTube [ https:= //www.youtube.com/channel/UCxyq9roe-npgzrVwbpoAy0A ]

________________________________________________________________________

This email was sent to cisa@toolazy.synchro.net using GovDelivery Communica= tions Cloud, on behalf of: Cybersecurity and Infrastructure Security Agency=
=C2=B7 707 17th St, Suite 4000 =C2=B7 Denver, CO 80202 GovDelivery logo [ = https://subscriberhelp.granicus.com/ ]=20
body .abe-column-block { min-height: 5px; } table.gd_combo_table img {margi= n-left:10px; margin-right:10px;} table.gd_combo_table div.govd_image_displa=
y img, table.gd_combo_table td.gd_combo_image_cell img {margin-left:0px; ma= rgin-right:0px;}

--===============7241760500209710812==
Content-Type: text/html; charset="utf-8"
MIME-Version: 1.0
Content-Transfer-Encoding: quoted-printable

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
"http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns=3D"http://www.w3.org/1999/xhtml" xml:lang=3D"en" lang=3D"en"> <head>
<title> CISA Releases Update to RESURGE Malware Analysis Report
</title>


</head>
<body style=3D"">

<table width=3D"700" border=3D"0" cellspacing=3D"0" cellpadding=3D"0"=
align=3D"center">
<tr>
<td>

<!--[if (gte mso 9)|(IE)]>
<table style=3D"display:none"><tr><td><a name=3D"gd_top" id=3D"gd_top"></= a></td></tr></table>
<![endif]-->
<a name=3D"gd_top" id=3D"gd_top"></a>

=20



<p><img src=3D"https://content.govdelivery.com/attachments/fancy_images/U= SDHSCISA/2020/06/3486054/05152023-gov-delivery-banner-copy_original.png" al= t=3D"Cybersecurity and Infrastructure Security Agency (CISA)" title=3D"" wi= dth=3D"600" height=3D"100"></p>
<p>You are subscribed to Cybersecurity Advisories for Cybersecurity and I= nfrastructure Security Agency. This information has recently been updated a=
nd is now available.</p>
<h2><a href=3D"https://www.cisa.gov/news-events/analysis-reports/ar25-087a"=
target=3D"_blank" title=3D"CISA Releases Update to RESURGE Malware Analysi=
s Report" rel=3D"noopener">CISA Releases Update to RESURGE Malware Analysis=
Report</a></h2>
<div class=3D"rss_item" style=3D"margin-bottom: 2em;">
<p><em>02/26/2026 4:00 PM EST</em></p>
<p>CISA released an update to its <a href=3D"https://www.cisa.gov/news-even= ts/analysis-reports/ar25-087a" target=3D"_blank" title=3D"Malware Analysis = Report (MAR)" rel=3D"noopener">Malware Analysis Report (MAR)</a> involving = RESURGE Malware, providing network defenders with deeper technical insights=
and enhanced tools to identify, mitigate and respond to this threat. CISA'=
s updated analysis reveals that RESURGE can remain latent on systems until =
a remote actor attempts to connect to the compromised device. As such, CISA=
assesses that RESURGE may be dormant and undetected on Ivanti Connect Secu=
re devices--continuing to pose an active threat.=C2=A0</p>
<p>The original MAR highlighted RESURGE's capabilities to modify files, man= ipulate integrity checks and deploy a web shell to the Ivanti boot disk. CI= SA's updated analysis expands on RESURGE's sophisticated network-level evas= ion and authentication techniques, including the use of advanced cryptograp= hic methods and forged Transport Layer Security certificates to enable cove=
rt communications.=C2=A0</p>
<p>For more information, please visit <a href=3D"https://www.cisa.gov/news-= events/analysis-reports/ar25-087a" target=3D"_blank" title=3D"MAR-25993211-= r1.v1 Ivanti Connect Secure (RESURGE) | CISA" rel=3D"noopener">MAR-25993211= -r1.v1 Ivanti Connect Secure (RESURGE) | CISA</a>.</p>
<p>Please share your thoughts with us through this this <a href=3D"https://= cisasurvey.gov1.qualtrics.com/jfe/form/SV_9n4TtB8uttUPaM6?Source=3DGovDeliv= eryhttps://www.cisa.gov/news-events/analysis-reports/ar25-087a" target=3D"_= blank" title=3D"product feedback survey" rel=3D"noopener">anonymous survey<= /a>. We appreciate your feedback!</p>
<p>This product is provided subject to this=C2=A0<a href=3D"https://www.cis= a.gov/notification" target=3D"_blank" title=3D"Notification" rel=3D"noopene= r">Notification</a>=C2=A0and this=C2=A0<a href=3D"https://www.cisa.gov/priv= acy-policy" target=3D"_blank" title=3D"Privacy &amp; Use=C2=A0policy" rel= =3D"noopener">Privacy &amp; Use=C2=A0policy</a>.</p>
</div>
<style>body {
font-size: 1em; font-family: Arial, Verdana, sans-serif; font-weight: norma=
l; font-style: normal; color: #333333;
}
</style>
=20


<div id=3D"mail_footer">
<p style=3D"text-align: center;"><span style=3D"font-size: 10.0pt; colo=
r: #757575;">Having trouble viewing this message?=C2=A0</span><a href=3D"ht= tps://content.govdelivery.com/accounts/USDHSCISA/bulletins/40b929f" target= =3D"_blank" rel=3D"noopener">View it as a webpage</a>.=C2=A0<a href=3D"http= s://content.govdelivery.com/accounts/USDHS/bulletins/292141e" target=3D"_bl= ank" rel=3D"noopener"></a><span style=3D"font-size: 10.0pt; color: #757575;= "></span></p>
<p style=3D"text-align: center;"><span style=3D"font-size: 10.0pt; color: #= 757575;">You are subscribed to updates from the </span><a href=3D"https://w= ww.cisa.gov"><span style=3D"font-size: 10.0pt;">Cybersecurity and Infrastru= cture Security Agency</span></a><span style=3D"font-size: 10.0pt; color: #7= 57575;"> (CISA)<br></span><a href=3D"https://public.govdelivery.com/account= s/USDHSCISA/subscriber/edit?preferences=3Dtrue#tab1" target=3D"_blank" rel= =3D"noopener"><span style=3D"font-size: 10.0pt; color: #00568c;">Manage Sub= scriptions</span></a>=C2=A0=C2=A0<span style=3D"font-size: 10.0pt; color: #= 757575;">|=C2=A0=C2=A0</span><a href=3D"https://www.cisa.gov/privacy-policy=
" target=3D"_blank" rel=3D"noopener"><span style=3D"font-size: 10.0pt; colo=
r: #00568c;">Privacy Policy</span></a><span style=3D"font-size: 10.0pt; col= or: #757575;">=C2=A0=C2=A0|=C2=A0 <a href=3D"https://subscriberhelp.granicu= s.com/s/article/Subscriber-Help-Center" target=3D"_blank" rel=3D"noopener">= Help</a><a href=3D"https://insights.govdelivery.com/Communications/Subscrib= er_Help_Center" target=3D"_blank" rel=3D"noopener"></a></span><span style= =3D"font-size: 10.0pt; color: #757575;"></span></p>
<p style=3D"text-align: center;"><span style=3D"font-size: 10.0pt; color: #= 757575;">Connect with CISA: <br></span><a href=3D"https://www.facebook.com/= CISA" target=3D"_blank" rel=3D"noopener"><span style=3D"font-size: 10.0pt; = color: #00568c;">Facebook</span></a><span style=3D"font-size: 10.0pt; color=
: #757575;">=C2=A0 |=C2=A0 </span><a href=3D"https://twitter.com/CISAgov" t= arget=3D"_blank" rel=3D"noopener"><span style=3D"font-size: 10.0pt; color: = #00568c;">Twitter</span></a><span style=3D"font-size: 10.0pt; color: #75757= 5;">=C2=A0 |=C2=A0 </span><a href=3D"https://Instagram.com/cisagov" target= =3D"_blank" rel=3D"noopener"><span style=3D"font-size: 10.0pt; color: #0056= 8c;">Instagram</span></a><span style=3D"font-size: 10.0pt; color: #757575;"= >=C2=A0 |=C2=A0 </span><a href=3D"https://www.linkedin.com/company/cybersec= urity-and-infrastructure-security-agency" target=3D"_blank" rel=3D"noopener= "><span style=3D"font-size: 10.0pt; color: #00568c;">LinkedIn</span></a><sp=
an style=3D"font-size: 10.0pt; color: #757575;">=C2=A0 |=C2=A0=C2=A0 </span= ><a href=3D"https://www.youtube.com/channel/UCxyq9roe-npgzrVwbpoAy0A" targe= t=3D"_self"><span style=3D"font-size: 10.0pt; color: #00568c;">YouTube</spa= n></a><span style=3D"font-size: 10.0pt; color: #757575;"></span></p>

</div>
<div id=3D"tagline">
<hr>
<table style=3D"width: 100%;" border=3D"0" cellspacing=3D"0" cellpadding=3D=

<tbody>

<td style=3D"color: #757575; font-size: 10px; font-family: Arial;" width=3D= "89%">This email was sent to cisa@toolazy.synchro.net using GovDelivery Com= munications Cloud, on behalf of: Cybersecurity and Infrastructure Security = Agency =C2=B7 707 17th St, Suite 4000 =C2=B7 Denver, CO 80202</td>
<td align=3D"right" width=3D"11%"><a href=3D"https://subscriberhelp.granicu= s.com/" target=3D"_blank" rel=3D"noopener"><img src=3D"https://content.govd= elivery.com/images/govd-logo-dark.png" border=3D"0" alt=3D"GovDelivery logo=
" width=3D"115"></a></td>
</tr>
</tbody>
</table>
<style type=3D"text/css">body .abe-column-block { min-height: 5px; } table.= gd_combo_table img {margin-left:10px; margin-right:10px;} table.gd_combo_ta= ble div.govd_image_display img, table.gd_combo_table td.gd_combo_image_cell=
img {margin-left:0px; margin-right:0px;}</style>

</div>
</td>
</tr>
</table>

<img alt=3D"" src=3D"https://links-2.govdelivery.com/CI0/0101019c9bc2f62b-2= a1c8bd2-a4c3-4891-a390-d2e6a327e2c5-000000/kdooDw6lolorenBFOSezUuGtjRRj4O39= -08gaGlrl7w=3D446" style=3D"display: none; width: 1px; height: 1px;">
</body>
</html>

--===============7241760500209710812==--

--===============1309461741163138589==--