DataBreaches.Net

Menu
  • About
  • Breach Notification Laws
  • Privacy Policy
  • Transparency Report
Menu

CISA Alert: Daixin Team

Posted on October 21, 2022 by Dissent

[Comment: I’ve been waiting for this since I first suspected that Daixin Team might be responsible for the CommonSpirit breach. And although it has not been confirmed by anyone, I still suspect them of that one. — Dissent]

Alert (AA22-294A)

#StopRansomware: Daixin Team

Download the PDF version of this report: pdf, 591 KB

Technical Details

Note: This advisory uses the MITRE ATT&CK® for Enterprise framework, version 11. See MITRE ATT&CK for Enterprise for all referenced tactics and techniques.

Cybercrime actors routinely target HPH Sector organizations with ransomware:

  • As of October 2022, per FBI Internet Crime Complaint Center (IC3) data, specifically victim reports across all 16 critical infrastructure sectors, the HPH Sector accounts for 25 percent of ransomware complaints.
  • According to an IC3 annual report in 2021, 649 ransomware reports were made across 14 critical infrastructure sectors; the HPH Sector accounted for the most reports at 148.

The Daixin Team is a ransomware and data extortion group that has targeted the HPH Sector with ransomware and data extortion operations since at least June 2022. Since then, Daixin Team cybercrime actors have caused ransomware incidents at multiple HPH Sector organizations where they have:

  • Deployed ransomware to encrypt servers responsible for healthcare services—including electronic health records services, diagnostics services, imaging services, and intranet services, and/or
  • Exfiltrated personal identifiable information (PII) and patient health information (PHI) and threatened to release the information if a ransom is not paid.

Daixin actors gain initial access to victims through virtual private network (VPN) servers. In one confirmed compromise, the actors likely exploited an unpatched vulnerability in the organization’s VPN server [T1190]. In another confirmed compromise, the actors used previously compromised credentials to access a legacy VPN server [T1078] that did not have multifactor authentication (MFA) enabled. The actors are believed to have acquired the VPN credentials through the use of a phishing email with a malicious attachment [T1598.002].

After obtaining access to the victim’s VPN server, Daixin actors move laterally via Secure Shell (SSH) [T1563.001] and Remote Desktop Protocol (RDP) [T1563.002]. Daixin actors have sought to gain privileged account access through credential dumping [T1003] and pass the hash [T1550.002]. The actors have leveraged privileged accounts to gain access to VMware vCenter Server and reset account passwords [T1098] for ESXi servers in the environment. The actors have then used SSH to connect to accessible ESXi servers and deploy ransomware [T1486] on those servers.

According to third-party reporting, the Daixin Team’s ransomware is based on leaked Babuk Locker source code. This third-party reporting as well as FBI analysis show that the ransomware targets ESXi servers and encrypts files located in /vmfs/volumes/ with the following extensions: .vmdk, .vmem, .vswp, .vmsd, .vmx, and .vmsn. A ransom note is also written to /vmfs/volumes/. See Figure 1 for targeted file system path and Figure 2 for targeted file extensions list. Figure 3 and Figure 4 include examples of ransom notes. Note that in the Figure 3 ransom note, Daixin actors misspell “Daixin” as “Daxin.”

Read more of the alert at CISA.gov.

But note that Daixin didn’t just accidentally misspell Daixin as Daxin. As this site has previously reported, DataBreaches had asked them about the similarity of their name, Daixin, to Daxin malware. They told me the similarity was not coincidental.

Category: Commentaries and AnalysesHealth DataMalwareU.S.

Post navigation

← Bits ‘n Pieces (Trozos y Piezas)
Computer hacker of famous musicians’ digital accounts is jailed →

Now more than ever

"Stand with Ukraine:" above raised hands. The illustration is in blue and yellow, the colors of Ukraine's flag.

Search

Browse by Categories

Recent Posts

  • Rajkot civic body’s GIS website hit by cyber attack, over 400 GB data feared stolen
  • Taiwan’s BitoPro hit by NT$345 million cryptocurrency hack
  • Texas gastroenterology and surgical practice victim of ransomware attack
  • Romanian Citizen Pleads Guilty to ‘Swatting’ Numerous Members of Congress, Churches, and Former U.S. President
  • North Dakota Enacts Financial Data Security and Data Breach Notification Requirements
  • Pro-Ukraine hacker group Black Owl poses ‘major threat’ to Russia, Kaspersky says
  • Vanta bug exposed customers’ data to other customers
  • Lyrix Ransomware Targets Windows Users with Advanced Evasion Techniques
  • Central Maine Healthcare tackles suspected cybersecurity issue; hospitals remain open
  • Cartier Data Breach: Luxury Retailer Warns Customers that Personal Data Was Exposed

No, You Can’t Buy a Post or an Interview

This site does not accept sponsored posts or link-back arrangements. Inquiries about either are ignored.

And despite what some trolls may try to claim: DataBreaches has never accepted even one dime to interview or report on anyone. Nor will DataBreaches ever pay anyone for data or to interview them.

Want to Get Our RSS Feed?

Grab it here:

https://databreaches.net/feed/

RSS Recent Posts on PogoWasRight.org

  • Florida ban on kids using social media likely unconstitutional, judge rules
  • State Data Minimization Laws Spark Compliance Uncertainty
  • Supreme Court Agrees to Clarify Emergency Situations Where Police Don’t Need Warrant
  • Stewart Baker vs. Orin Kerr on “The Digital Fourth Amendment”
  • Fears Grow Over ICE’s Reach Into Schools
  • Resource: HoganLovells Asia-Pacific Data, Privacy and Cybersecurity Guide 2025
  • She Got an Abortion. So A Texas Cop Used 83,000 Cameras to Track Her Down.

Have a News Tip?

Email: Tips[at]DataBreaches.net

Signal: +1 516-776-7756

Contact Me

Email: info[at]databreaches.net

Mastodon: Infosec.Exchange/@PogoWasRight

Signal: +1 516-776-7756

DMCA Concern: dmca[at]databreaches.net
© 2009 – 2025 DataBreaches.net and DataBreaches LLC. All rights reserved.