Close
  • Latest News
  • Artificial Intelligence
  • Video
  • Big Data and Analytics
  • Cloud
  • Networking
  • Cybersecurity
  • Applications
  • IT Management
  • Storage
  • Sponsored
  • Mobile
  • Small Business
  • Development
  • Database
  • Servers
  • Android
  • Apple
  • Innovation
  • Blogs
  • PC Hardware
  • Reviews
  • Search Engines
  • Virtualization
Read Down
Sign in
Close
Welcome!Log into your account
Forgot your password?
Read Down
Password recovery
Recover your password
Close
Search
Logo
Subscribe
Logo
  • Latest News
  • Artificial Intelligence
  • Video
  • Big Data and Analytics
  • Cloud
  • Networking
  • Cybersecurity
  • Applications
  • IT Management
  • Storage
  • Sponsored
  • Mobile
  • Small Business
  • Development
  • Database
  • Servers
  • Android
  • Apple
  • Innovation
  • Blogs
  • PC Hardware
  • Reviews
  • Search Engines
  • Virtualization
More
    Subscribe
    Home Cloud
    • Cloud
    • Cybersecurity
    • Networking

    Duqu May Have Targeted Certificate Authorities for Encryption Keys

    Written by

    Fahmida Y. Rashid
    Published October 19, 2011
    Share
    Facebook
    Twitter
    Linkedin

      eWEEK content and product recommendations are editorially independent. We may make money when you click on links to our partners. Learn More.

      As Symantec continues its analysis of Duqu, the latest malware targeting industrial control firms and based on the Stuxnet worm, other security researchers believe that certificate authorities are among the affected victims.

      Symantec posted its preliminary analysis of the Duqu worm on Oct. 18. Duqu’s focus appears to be on industrial control systems, but unlike Stuxnet, its goal appears to be information gathering and not disabling hardware. However, a pair of researchers from McAfee noted that the team behind Duqu may have compromised certificate authorities along the way.

      McAfee researchers Guilherme Venere and Peter Szor believe that Duqu was created for espionage and to launch targeted attacks against certificate authorities. While Symantec had noted that several companies in Europe had been hit by Duqu, the Symantec Security Response team had not provided any details on the victims or the kind of information that had been obtained.

      Based on their own analysis, McAfee’s Venere and Szor claimed Duqu had been used in “professional, targeted attacks” against various certificate authorities in southern Europe, Middle East, parts of Asia and Africa.

      “It is highly likely that this key, just like the previous two known cases, was not really stolen from the actual companies, but instead directly generated in the name of such companies at a CA as part of a direct attack,” wrote Venere and Szor, noting that Stuxnet had used two digital certificates belonging to companies in Taiwan, as well.

      McAfee Labs advised Certificate Authorities to “carefully verify” their systems to ensure they weren’t compromised by Duqu or other “variations.” The digital certificate used by Duqu belonged to a Taiwanese company, C-Media Electronics, according to McAfee. It was most likely not stolen, but was legitimately issued by a compromised CA.

      The certificate in question was revoked on Oct. 14 by VeriSign, the certificate authority recently acquired by Symantec. However, based on its internal investigation, Symantec said the private key used for the certificates had been stolen from its customers. VeriSign had not been tricked into issuing certificates to attackers. The company used “correct processes” to authenticate and verify the certificate was being requested by a legitimate customer, according to Symantec.

      “At no time were Symantec’s roots and intermediate CAs at risk, nor were there any issues with any CA, intermediate, or other VeriSign or Thawte brands of certificates,” Symantec said.

      The rogue SSL certificate was used to authenticate itself and sign Duqu’s driver files, according to Symantec’s analysis. This allowed Duqu to act as a trusted application within the network and communicate with other systems and applications because its components had been signed by a “legitimate” certificate, Jeff Hudson, CEO of Venafi, told eWEEK.

      Organizations must maintain a complete inventory of all certificates issued by certificate authorities, monitor them, and know which ones are within policy. That way, administrators will know which ones aren’t compliant and revoke them, Hudson said.

      IT departments should be investing in a “solid logging infrastructure” to notice connections to unknown, foreign hosts, Bill Roth, CMO of LogLogic, told eWEEK. “People who do not monitor their networks with a log management infrastructure are like the homeowner who buys fake surveillance cameras for their house…and still gets ripped off,” Roth said.

      It’s not just logging, as organizations should have a “mix of tools” to detect and block suspicious activity, Jason Lewis, CTO of Lookingglass, told eWEEK. The mix can include a Web proxy to control what sites employees are accessing, a firewall and intrusion prevention system can block malicious traffic, and two-factor authentication is better at securing accounts and services than just passwords, said Lewis.

      “Using all of these elements together increases the likelihood of catching malicious activity quickly,” Lewis said.

      Fahmida Y. Rashid
      Fahmida Y. Rashid

      Get the Free Newsletter!

      Subscribe to Daily Tech Insider for top news, trends & analysis

      Get the Free Newsletter!

      Subscribe to Daily Tech Insider for top news, trends & analysis

      MOST POPULAR ARTICLES

      Artificial Intelligence

      9 Best AI 3D Generators You Need...

      Sam Rinko - June 25, 2024 0
      AI 3D Generators are powerful tools for many different industries. Discover the best AI 3D Generators, and learn which is best for your specific use case.
      Read more
      Cloud

      RingCentral Expands Its Collaboration Platform

      Zeus Kerravala - November 22, 2023 0
      RingCentral adds AI-enabled contact center and hybrid event products to its suite of collaboration services.
      Read more
      Artificial Intelligence

      8 Best AI Data Analytics Software &...

      Aminu Abdullahi - January 18, 2024 0
      Learn the top AI data analytics software to use. Compare AI data analytics solutions & features to make the best choice for your business.
      Read more
      Latest News

      Zeus Kerravala on Networking: Multicloud, 5G, and...

      James Maguire - December 16, 2022 0
      I spoke with Zeus Kerravala, industry analyst at ZK Research, about the rapid changes in enterprise networking, as tech advances and digital transformation prompt...
      Read more
      Video

      Datadog President Amit Agarwal on Trends in...

      James Maguire - November 11, 2022 0
      I spoke with Amit Agarwal, President of Datadog, about infrastructure observability, from current trends to key challenges to the future of this rapidly growing...
      Read more
      Logo

      eWeek has the latest technology news and analysis, buying guides, and product reviews for IT professionals and technology buyers. The site’s focus is on innovative solutions and covering in-depth technical content. eWeek stays on the cutting edge of technology news and IT trends through interviews and expert analysis. Gain insight from top innovators and thought leaders in the fields of IT, business, enterprise software, startups, and more.

      Facebook
      Linkedin
      RSS
      Twitter
      Youtube

      Advertisers

      Advertise with TechnologyAdvice on eWeek and our other IT-focused platforms.

      Advertise with Us

      Menu

      • About eWeek
      • Subscribe to our Newsletter
      • Latest News

      Our Brands

      • Privacy Policy
      • Terms
      • About
      • Contact
      • Advertise
      • Sitemap
      • California – Do Not Sell My Information

      Property of TechnologyAdvice.
      © 2024 TechnologyAdvice. All Rights Reserved

      Advertiser Disclosure: Some of the products that appear on this site are from companies from which TechnologyAdvice receives compensation. This compensation may impact how and where products appear on this site including, for example, the order in which they appear. TechnologyAdvice does not include all companies or all types of products available in the marketplace.