What We Do
How we do it
Jan 13, 2022
GootLoader Hackers Are Compromising Employees of Law and Accounting Firms, Warns eSentire
GootLoader Gang Launches Wide-Spread Cyberattacks Enticing Legal and Accounting Employees to Download Malware eSentire, the industry’s leading Managed Detection and Response (MDR) cybersecurity provider, is warning law and accounting firms of a wide-spread GootLoader hacker campaign. In the past three weeks and as recently as January 6, eSentire’s threat hunters have intercepted and shut down…
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
Oct 28, 2021
Telarus and eSentire Expand Partnership to Safeguard Enterprises Globally Against Business Disrupting Ransomware and Zero-Day Attacks
London, UK and Sydney, Australia– Oct. 28, 2021 - eSentire, recognized globally as the Authority in Managed Detection and Response (MDR), today announces the expansion of its partnership with Telarus, the largest privately-held distributor of business cloud infrastructure and contact centre services. Building on their mutual success across North America, Telarus will bring eSentire’s Managed…
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
Apply today to partner with the Authority in Managed Detection and Response.
Login to the Partner Portal for resources and content for current partners.
Security advisories — Dec 03, 2021

Critical Zoho ManageEngine ServiceDesk Plus Vulnerability Exploited

Speak With A Security Expert Now


eSentire has observed active exploitation of the critical Zoho ManageEngine ServiceDesk Plus vulnerability CVE-2021-44077 (CVSS: 9.8). The vulnerability is classified as Remote Code Execution (RCE) and allows a remote and unauthenticated threat actor to upload executable files and deploy web shells on compromised assets.

Organizations making use of Zoho products are strongly recommended to ensure relevant security patches are deployed and run the available exploitation detection tool, provided by Zoho ManageEngine, to identify potential signs of compromise.

What we’re doing about it

What you should do about it

Additional information

eSentire discovered malicious activity while deploying detection for exploitation of CVE-2021-44077 and associated threats. CISA and the FBI have warned that Advanced Persistent Threat groups are actively exploiting CVE-2021-44077. Exploitation of this vulnerability may indicate that a wider intrusion has occurred, including the compromise of administrator credentials, lateral movements, and data exfiltration.


[1] https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-44077
[2] https://www.manageengine.com/products/service-desk/security-response-plan.html
[3] https://us-cert.cisa.gov/ncas/alerts/aa21-336a

View Most Recent Blogs