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Jul 26, 2021
PetitPotam NTLM Relay Attack
THE THREAT PetitPotam is a variant of NTLM Relay attacks discovered by security researcher Gilles Lionel. Proof of Concept code released last week [1] relies on the Encrypting File System Remote (EFSRPC) protocol to provoke a Windows host into performing an NTLM authentication request against an attacker-controlled server, exposing NTLM authentication details or authentication certificates.…
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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…
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Security advisories — Feb 26, 2019

WanaCrypt0r 2.0 Ransomware

1 min read

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.