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  • https://www.theregister.com/2025/09/08/salt_typhoon_domains/

Salt Typhoon used dozens of domains, going back five years. Did you visit one?

The Register
·
Jessica Lyons
·
Published Sep 8, 2025
·
Updated

Security researchers have uncovered dozens of domains used by Chinese espionage crew Salt Typhoon to gain stealthy, long-term access to victim organizations going back as far as 2020. In a Monday report, threat intelligence firm Silent Push said it had found 45 domains, the majority of which were previously unreported, that it has linked to Salt Typhoon or UNC4841, a similar group. Salt Typhoon is the People's Republic of China spying gang that hacked America's major telecommunications firms and stole metadata and other information belonging to "nearly every American," according to a top FBI cyber official who spoke with The Register about the intrusions. UNC4841 is best known for a series of 2023 attacks that targeted CVE-2023-2868, a critical bug in some Barracuda Email Security Gateways, to deploy custom malware and maintain access to high-value networks, about a third of which belonged to government organizations. The threat researchers note that key domain registration patterns in Salt Typhoon's previously-reported command and control (C2) infrastructure helped them uncover the new domain names, several of which shared the same registrant - "almost certainly fake" personas including "Shawn Francis," "Monica Burch," and "Tommie Arnold," most using ProtonMail email addresses, and all of whom purportedly live in the US and have physical addresses that don't exist. Interestingly, one of the domains appears to be a Hong Kong newspaper: newhkdaily[.]com. "Whether this is an im...

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Affected Software

1 affected component
Barracuda Email Security Gateway

Frequently Asked Questions

1

What is the main topic of this article?

The article discusses the discovery of numerous domains used by the Chinese espionage group Salt Typhoon for long-term cyber espionage.

2

What security implications are discussed in the article?

The article highlights the risk of ongoing cyber espionage and the potential compromise of victim organizations due to Salt Typhoon's stealthy access methods.

3

What products or software are affected according to the article?

The article indicates that the Barracuda Email Security Gateway may be affected by the tactics used by Salt Typhoon.

4

How long has Salt Typhoon been operating according to the research?

Research shows that Salt Typhoon has been operational for at least five years, dating back to 2020.

5

What methods did Salt Typhoon use to remain undetected?

Salt Typhoon utilized a range of domains to maintain stealthy and persistent access to targeted organizations.

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