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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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Cybersecurity Leader eSentire Continues Its Commitment to Rigorous Security Standards Earning PCI DSS Certification
Waterloo, ON, May 17, 2022 — eSentire, the Authority in Managed Detection and Response (MDR), maintains one of the most secure and robust IT environments of any MDR provider in the industry. To that end, eSentire today announced that it has received the Payment Card Industry Data Security Standard (PCI DSS) certification, considered one of the most stringent and comprehensive payment card…
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Security advisories — Feb 26, 2019

WanaCrypt0r 2.0 Ransomware

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The Threat

It has come to our attention that multiple ransomware infections have surfaced and spread in Spain at the company Telefonica as reported by Reuters and at the National Health Service (NHS) of the United Kingdom, as reported by the Guardian.

This strain goes by the names WanaCrypt0r 2.0, WCry, WannaCrypt and Wana Decryptor. The ransomware spread appears to leverage an SMB exploit from the April 2017 Shadow Brokers dump. The purpose of the TOR client appears to send the infected machine's encryption key to the threat actor controlling the ransomware.

eSentire Response

Recommended Action

Additional Information

News outlets and online security sources are reporting that there have been more than 60,000 WannaCryptor infections across 50+ countries today.

Deployment of the MS17-010 patches is extremely important. The Microsoft SMB vulnerability is the primary means of the ransomware spreading while inside the network. eSentire does not recommend ransom payment, as there is no guarantee that the affected data will be recovered.

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