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SECURITY ADVISORIES
May 11, 2022
CVE-2022-26923 - Active Directory Domain Services Elevation of Privilege Vulnerability
THE THREAT Microsoft has disclosed a new vulnerability impacting Active Directory Certificate Services (ADCS) tracked as CVE-2022-26923 (Active Directory Domain Services Elevation of Privilege Vulnerability). If exploited successfully, an authenticated attacker can escalate privileges in environments where ADCS is running on the domain. eSentire is aware of technical details and tooling [2] for…
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eSentire is The Authority in Managed Detection and Response Services, protecting the critical data and applications of 1200+ organizations in 75+ 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.
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May 10, 2022
Cybersecurity Leader eSentire Introduces e3 Partner Ecosystem Transforming How Value Is Delivered to Business Leaders
Waterloo, ON, May 10, 2022— eSentire, the Authority in Managed Detection and Response (MDR), today announced the launch of its e3 partner ecosystem, representing experience, expertise, eSentire. The e3 ecosystem focuses on mapping partner engagement, productivity and overall experience to how business leaders are choosing to consume best-in-class cybersecurity services. Believing that we all have…
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Security advisories — Feb 26, 2019

Ransomware Variant (CryptoFortress) Advisory

Speak With A Security Expert Now

We have discovered a new ransomware (malware) variant referenced as CryptoFortress in the wild and would like to provide additional information as to what we have discovered at this time. Please find below a more detailed investigation into the behavior of and mitigation methods applicable to CryptoFortress ransomware.

What We Know

Behavior of CryptoFortress:

Additional Information:

eSentire Defenses

eSentire features that help protect you:

Further Protection

How to further protect yourself from this emerging threat:

User awareness (Infections are occurring from users clicking on a malicious payload that is being delivered via spam email attachments).

eSentire recommends blocking .zip and .exe file extensions on your SMTP server.

Back up important data offline.

If you are running Windows 7 Ultimate/Enterprise or Windows 8 Pro/Enterprise you have the ability to use AppLocker. AppLocker is able to defend against CryptoFortress infections because it can require all programs to be signed by a legitimate software publisher.

Alternatively, AppLocker has the ability to whitelist folders.

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