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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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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.
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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…
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Security advisories — Jul 02, 2021

Kaseya Supply-Chain Attack Leads to Ransomware 

2 min read

THE THREAT

Time Sensitive: All Kaseya VSA clients need to immediately shut down their VSA Servers. This afternoon on July 2nd, 2021, it was discovered that the Kaseya VSA remote monitoring and management platform is being abused by cybercriminals in order to deliver the REvil (Sodinokibi) ransomware via an auto-update.

This ransomware campaign is ongoing at the time of writing. Until further details are released, again all organizations using Kaseya need to immediately shut down their VSA servers. The number of Kaseya clients impacted is still being assessed, but it is being reported that both cloud and on-premise customers are affected.

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Additional information

As this campaign is still occurring, details are currently limited. Huntress Labs has stated that at least 200 different organizations have been identified as impacted so far. According to security researcher Kevin Beaumont, the ransomware is delivered via an automated software update in Kaseya. Once on the system, the ransomware actors stop administrator access to the VSA platform and proceed to drop malicious files on the client system. Microsoft Defender is disabled or modified to prevent real-time monitoring. By design, Kaseya has wide-reaching access, meaning the REvil ransomware can be widely deployed at a rapid pace.

It appears that Kaseya has temporarily disabled their Cloud offering. As such, immediate action is required by users of on-premise installations of Kaseya to prevent the deployment of ransomware.

References:

[1] https://helpdesk.kaseya.com/hc/en-gb/articles/4403440684689
[2] https://www.bleepingcomputer.com/news/security/revil-ransomware-hits-200-companies-in-msp-supply-chain-attack/
[3] https://doublepulsar.com/kaseya-supply-chain-attack-delivers-mass-ransomware-event-to-us-companies-76e4ec6ec64b