What We Do
How we do it
Jul 29, 2021
UPDATE: PetitPotam NTLM Relay Attack
THE THREAT PetitPotam is a variant of the NTLM Relay attack discovered by security researcher Gilles Lionel. It is tracked as an authentication bypass vulnerability in Active Directory (Certificate Services); currently no CVE identifier has been assigned to this vulnerability. Proof of Concept (PoC) code released last week [1] relies on the Encrypting File System Remote (EFSRPC) protocol to…
Read More
View all Advisories →
About Us
eSentire is The Authority in Managed Detection and Response Services, protecting the critical data and applications of 1000+ organizations in 70+ countries from known and unknown cyber threats. Founded in 2001, the company’s mission is to hunt, investigate and stop cyber threats before they become business disrupting events.
Read about how we got here
Leadership Work at eSentire
Jul 12, 2021
Tecala and eSentire Partner to Protect Enterprises across APAC from Business-Disrupting Cyber Attacks
Sydney, 12 July, 2021 - Tecala, Australia’s award-winning technology services and IT consulting provider, today announced it has chosen eSentire, the global Authority in Managed Detection and Response (MDR) cybersecurity services, as their exclusive MDR solution provider in Australia and New Zealand. This partnership will enable Tecala to augment its cybersecurity practice and offer enterprises…
Read More
Our award-winning partner program offers financial rewards, sales and marketing tools and personalized training. Accelerate your business and grow your revenue by offering our world-class Managed Detection and Response (MDR) services.
Learn about our Partner Program
Security advisories — Jan 09, 2020

Recent Media Reports on Operation Cloud Hopper

2 min read

The Threat

eSentire has been tracking operation Cloud Hopper since its emergence in 2014. Cloud Hopper is a campaign that is conducted by the Chinese hacking group known as APT10 (Stone Panda) and targets Managed Service Providers (MSPs). Recent reporting from the Wall Street Journal states that operation Cloud Hopper is significantly larger and has affected more companies than previously believed [1]. eSentire continues to monitor for this campaign and has not detected it against eSentire.

What we’re doing about it

What you should do about it

Additional information

Tactics, Techniques & Procedures (TTPS)

Known Affected Industries [2]:



[1] https://www.wsj.com/articles/ghosts-in-the-clouds-inside-chinas-major-corporate-hack-11577729061

[2] https://www.us-cert.gov/sites/default/files/publications/Chinese-Cyber-Activity-Targeting-Managed-Service-Providers.pdf

[3] https://www.reuters.com/investigates/special-report/china-cyber-cloudhopper/