Security Magazine logo
  • Sign In
  • Create Account
  • Sign Out
  • My Account
  • NEWS
  • MANAGEMENT
  • PHYSICAL
  • CYBER
  • BLOG
  • COLUMNS
  • EXCLUSIVES
  • SECTORS
  • EVENTS
  • MEDIA
  • MORE
  • EMAG
  • SIGN UP!
cart
facebook twitter linkedin youtube
  • NEWS
  • Security Newswire
  • Technologies & Solutions
  • MANAGEMENT
  • Leadership Management
  • Enterprise Services
  • Security Education & Training
  • Logical Security
  • Security & Business Resilience
  • Profiles in Excellence
  • PHYSICAL
  • Access Management
  • Fire & Life Safety
  • Identity Management
  • Physical Security
  • Video Surveillance
  • Case Studies (Physical)
  • CYBER
  • Cybersecurity News
  • More
  • COLUMNS
  • Cyber Tactics
  • Leadership & Management
  • Security Talk
  • Career Intelligence
  • Leader to Leader
  • Cybersecurity Education & Training
  • EXCLUSIVES
  • Annual Guarding Report
  • Most Influential People in Security
  • The Security Benchmark Report
  • The Security Leadership Issue
  • Top Guard and Security Officer Companies
  • Top Cybersecurity Leaders
  • Women in Security
  • SECTORS
  • Arenas / Stadiums / Leagues / Entertainment
  • Banking/Finance/Insurance
  • Construction, Real Estate, Property Management
  • Education: K-12
  • Education: University
  • Government: Federal, State and Local
  • Hospitality & Casinos
  • Hospitals & Medical Centers
  • Infrastructure:Electric,Gas & Water
  • Ports: Sea, Land, & Air
  • Retail/Restaurants/Convenience
  • Transportation/Logistics/Supply Chain/Distribution/ Warehousing
  • EVENTS
  • Industry Events
  • Webinars
  • Solutions by Sector
  • Security 500 Conference
  • MEDIA
  • Videos
  • Podcasts
  • Polls
  • Photo Galleries
  • Videos
  • Cybersecurity & Geopolitical Discussion
  • Ask Me Anything (AMA) Series
  • MORE
  • Call for Entries
  • Classifieds & Job Listings
  • Continuing Education
  • Newsletter
  • Sponsor Insights
  • Store
  • White Papers
  • EMAG
  • eMagazine
  • This Month's Content
  • Advertise
Security Magazine logo
search
cart
facebook twitter linkedin youtube
  • Sign In
  • Create Account
  • Sign Out
  • My Account
Security Magazine logo
  • NEWS
    • Security Newswire
    • Technologies & Solutions
  • MANAGEMENT
    • Leadership Management
    • Enterprise Services
    • Security Education & Training
    • Logical Security
    • Security & Business Resilience
    • Profiles in Excellence
  • PHYSICAL
    • Access Management
    • Fire & Life Safety
    • Identity Management
    • Physical Security
    • Video Surveillance
    • Case Studies (Physical)
  • CYBER
    • Cybersecurity News
    • More
  • BLOG
  • COLUMNS
    • Cyber Tactics
    • Leadership & Management
    • Security Talk
    • Career Intelligence
    • Leader to Leader
    • Cybersecurity Education & Training
  • EXCLUSIVES
    • Annual Guarding Report
    • Most Influential People in Security
    • The Security Benchmark Report
    • The Security Leadership Issue
    • Top Guard and Security Officer Companies
    • Top Cybersecurity Leaders
    • Women in Security
  • SECTORS
    • Arenas / Stadiums / Leagues / Entertainment
    • Banking/Finance/Insurance
    • Construction, Real Estate, Property Management
    • Education: K-12
    • Education: University
    • Government: Federal, State and Local
    • Hospitality & Casinos
    • Hospitals & Medical Centers
    • Infrastructure:Electric,Gas & Water
    • Ports: Sea, Land, & Air
    • Retail/Restaurants/Convenience
    • Transportation/Logistics/Supply Chain/Distribution/ Warehousing
  • EVENTS
    • Industry Events
    • Webinars
    • Solutions by Sector
    • Security 500 Conference
  • MEDIA
    • Videos
      • Cybersecurity & Geopolitical Discussion
      • Ask Me Anything (AMA) Series
    • Podcasts
    • Polls
    • Photo Galleries
  • MORE
    • Call for Entries
    • Classifieds & Job Listings
    • Continuing Education
    • Newsletter
    • Sponsor Insights
    • Store
    • White Papers
  • EMAG
    • eMagazine
    • This Month's Content
    • Advertise
  • SIGN UP!
CybersecurityManagementSecurity Enterprise ServicesSecurity Leadership and ManagementLogical SecurityCybersecurity News

Malicious actors exploited Microsoft Exchange to hack US defense infrastructure

By Security Staff
defense-freepik1170x658.jpg

Image via Freepik

October 6, 2022

Multiple hacking groups exploited vulnerabilities in Microsoft Exchange to gain “long-term access” to the server of an unnamed defense company.


The attackers, who had been exploiting the vulnerability as early as January 2021, stole what Cybersecurity and Infrastructure Security Agency (CISA) Director Jen Easterly called sensitive data — the company’s email, meetings, contacts, and other records. 


In a Cybersecurity Advisory (CSA), CISA, the Federal Bureau of Investigation (FBI), and the National Security Agency (NSA) highlighted this advanced persistent threat (APT) activity observed on a Defense Industrial Base (DIB) sector organization’s enterprise network.


APT actors used the open-source toolkit, Impacket, to gain a foothold within the environment and data exfiltration tool, CovalentStealer, to steal the victim’s sensitive data.


According to CISA, the APT cyber actors used virtual private network (VPN) and virtual private server (VPS) providers, M247 and SurfShark, as part of their techniques to remotely access the Microsoft Exchange server. Use of these hosting providers, which serves to conceal interaction with victim networks, are common for these threat actors, CISA says.


According to CISA’s analysis of the victim’s Microsoft Exchange server Internet Information Services (IIS) logs, the actors used the account of a former employee to access the EWS, which enables access to mailbox items such as email messages, meetings, and contacts. The source IP address for these connections is mostly from the VPS hosting provider, M247.


Tom Kellermann, CISM, senior vice president of cyber strategy at Contrast Security, who served on the Commission on Cybersecurity for President Barack Obama’s administration which worked on assessing and improving U.S. cyber infrastructure, says that the national security implications of this espionage campaign are significant. “The Chinese threat actor behind this intrusion represents their “A team.” With tensions simmering over Taiwan, we presume more of these infiltrations are occurring. The likelihood of them island hopping through the victim organization into military networks is high. Expanded threat hunting across Microsoft exchange servers and their administrators’ endpoints are imperative. My biggest concern is whether the integrity of the data was manipulated post-exploitation.”


The joint CSA provides APT actors tactics, techniques, and procedures (TTPs) and indicators of compromise (IOCs) identified during the incident response activities by CISA and a third-party incident response organization. 


The CSA includes detection and mitigation actions to help organizations detect and prevent related APT activity. CISA, FBI, and the NSA recommend DIB sector and other critical infrastructure organizations implement the mitigations in this CSA to ensure they are managing and reducing the impact of cyber threats to their networks.

KEYWORDS: CISA cybersecurity incident response national security risk management

Share This Story

Looking for a reprint of this article?
From high-res PDFs to custom plaques, order your copy today!

Recommended Content

JOIN TODAY
To unlock your recommendations.

Already have an account? Sign In

  • Security's Top Cybersecurity Leaders 2024

    Security's Top Cybersecurity Leaders 2024

    Security magazine's Top Cybersecurity Leaders 2024 award...
    Security Leadership and Management
    By: Security Staff
  • cyber brain

    The intersection of cybersecurity and artificial intelligence

    Artificial intelligence (AI) is a valuable cybersecurity...
    Security Enterprise Services
    By: Pam Nigro
  • artificial intelligence AI graphic

    Assessing the pros and cons of AI for cybersecurity

    Artificial intelligence (AI) has significant implications...
    Cybersecurity
    By: Charles Denyer
Manage My Account
  • Security eNewsletter & Other eNews Alerts
  • eMagazine Subscriptions
  • Manage My Preferences
  • Online Registration
  • Mobile App
  • Subscription Customer Service

The Money Laundering Machine: Inside the global crime epidemic - Episode 24

The Money Laundering Machine: Inside the global crime epidemic - Episode 24

Security’s Top 5 – 2024 Year in Review

Security’s Top 5 – 2024 Year in Review

Middle East Escalation, Humanitarian Law and Disinformation – Episode 25

Middle East Escalation, Humanitarian Law and Disinformation – Episode 25

More Videos

Sponsored Content

Sponsored Content is a special paid section where industry companies provide high quality, objective, non-commercial content around topics of interest to the Security audience. All Sponsored Content is supplied by the advertising company and any opinions expressed in this article are those of the author and not necessarily reflect the views of Security or its parent company, BNP Media. Interested in participating in our Sponsored Content section? Contact your local rep!

close
  • Sureview screen
    Sponsored bySureView Systems

    The Evolution of Automation in the Command Center

  • Crisis Response Team
    Sponsored byEverbridge

    Automate or Fall Behind – Crisis Response at the Speed of Risk

  • Perimeter security
    Sponsored byAMAROK

    Why Property Security is the New Competitive Advantage

Popular Stories

Rendered computer with keyboard

16B Login Credentials Exposed in World’s Largest Data Breach

Verizon on phone screen

61M Records Listed for Sale Online, Allegedly Belong to Verizon

Security camera

40,000 IoT Security Cameras Are Exposed Online

Fountain pen

Trump Administration Executive Order Changes Cybersecurity Policy

Red spiderweb

From Retail to Insurance, Scattered Spider Changes Targets

2025 Security Benchmark banner

Events

July 17, 2025

Tech in the Jungle: Leveraging Surveillance, Access Control, and Technology in Unique Environments

What do zebras, school groups and high-tech surveillance have in common? They're all part of a day’s work for the security team at the Toledo Zoo.

August 7, 2025

Threats to the Energy Sector: Implications for Corporate and National Security

The energy sector has found itself in the crosshairs of virtually every bad actor on the global stage.

View All Submit An Event

Products

Security Culture: A How-to Guide for Improving Security Culture and Dealing with People Risk in Your Organisation

Security Culture: A How-to Guide for Improving Security Culture and Dealing with People Risk in Your Organisation

See More Products

Related Articles

  • US-China-freepik

    US formally accuses China of Microsoft hack

    See More
  • Russia and Cyberattacks

    US intelligence agencies say Russian threat actors are likely behind SolarWinds hack

    See More
  • half open laptop with pink and blue lights

    CISA warns that malicious actors are targeting cloud infrastructure

    See More

Related Products

See More Products
  • security culture.webp

    Security Culture: A How-to Guide for Improving Security Culture and Dealing with People Risk in Your Organisation

  • into to sec.jpg

    Introduction to Security, 10th Edition

  • physical security.webp

    Physical Security Assessment Handbook An Insider’s Guide to Securing a Business

See More Products
×

Sign-up to receive top management & result-driven techniques in the industry.

Join over 20,000+ industry leaders who receive our premium content.

SIGN UP TODAY!
  • RESOURCES
    • Advertise
    • Contact Us
    • Store
    • Want More
  • SIGN UP TODAY
    • Create Account
    • eMagazine
    • eNewsletter
    • Customer Service
    • Manage Preferences
  • SERVICES
    • Marketing Services
    • Reprints
    • Market Research
    • List Rental
    • Survey/Respondent Access
  • STAY CONNECTED
    • LinkedIn
    • Facebook
    • YouTube
    • X (Twitter)
  • PRIVACY
    • PRIVACY POLICY
    • TERMS & CONDITIONS
    • DO NOT SELL MY PERSONAL INFORMATION
    • PRIVACY REQUEST
    • ACCESSIBILITY

Copyright ©2025. All Rights Reserved BNP Media.

Design, CMS, Hosting & Web Development :: ePublishing

Security Magazine logo
search
cart
facebook twitter linkedin youtube
  • Sign In
  • Create Account
  • Sign Out
  • My Account
Security Magazine logo
  • NEWS
    • Security Newswire
    • Technologies & Solutions
  • MANAGEMENT
    • Leadership Management
    • Enterprise Services
    • Security Education & Training
    • Logical Security
    • Security & Business Resilience
    • Profiles in Excellence
  • PHYSICAL
    • Access Management
    • Fire & Life Safety
    • Identity Management
    • Physical Security
    • Video Surveillance
    • Case Studies (Physical)
  • CYBER
    • Cybersecurity News
    • More
  • BLOG
  • COLUMNS
    • Cyber Tactics
    • Leadership & Management
    • Security Talk
    • Career Intelligence
    • Leader to Leader
    • Cybersecurity Education & Training
  • EXCLUSIVES
    • Annual Guarding Report
    • Most Influential People in Security
    • The Security Benchmark Report
    • The Security Leadership Issue
    • Top Guard and Security Officer Companies
    • Top Cybersecurity Leaders
    • Women in Security
  • SECTORS
    • Arenas / Stadiums / Leagues / Entertainment
    • Banking/Finance/Insurance
    • Construction, Real Estate, Property Management
    • Education: K-12
    • Education: University
    • Government: Federal, State and Local
    • Hospitality & Casinos
    • Hospitals & Medical Centers
    • Infrastructure:Electric,Gas & Water
    • Ports: Sea, Land, & Air
    • Retail/Restaurants/Convenience
    • Transportation/Logistics/Supply Chain/Distribution/ Warehousing
  • EVENTS
    • Industry Events
    • Webinars
    • Solutions by Sector
    • Security 500 Conference
  • MEDIA
    • Videos
      • Cybersecurity & Geopolitical Discussion
      • Ask Me Anything (AMA) Series
    • Podcasts
    • Polls
    • Photo Galleries
  • MORE
    • Call for Entries
    • Classifieds & Job Listings
    • Continuing Education
    • Newsletter
    • Sponsor Insights
    • Store
    • White Papers
  • EMAG
    • eMagazine
    • This Month's Content
    • Advertise
  • SIGN UP!