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07/06/2021 A ransomware attack leveraging a zero-day vulnerability in Kaseya s VSA management solution may have affected about 60 managed service providers (MSPs) and almost 1,500 of their business customers. The so-called supply-chain attack, attributed to the REvil ransomware gang (a.k.a., Sodinokibi ), was acknowledged by Kaseya in this rolling series of posts, dating back to July 2. Kaseya provides its VSA solution as a service, hosted from its datacenters, but the management software also gets installed on local servers (on customer premises). VSA is typically used by MSPs to provide outsourced IT support to businesses. Early on, Kaseya shut down its VSA servers and urged its customers using VSA on local infrastructure to do the same. However, the vulnerability had already been leveraged by the attackers, affecting MSPs and businesses. ....
Microsoft this week described how to use PowerShell to better manage Windows 10 updates when using the Windows Update for Business new Deployment Service addition. ....
May 04, 2021 Microsoft has released an open source tool that lets organizations use attack-testing methods on their artificial intelligence (AI) software solutions. Counterfit is now available as as an open source project on GitHub, Microsoft announced on Monday. Microsoft enlisted testing support from partners, organizations and government agencies to build Counterfit, which is a command-line interface tool for conducting automated attacks at scale on AI systems. It works across AI models used on-premises, in the cloud or at the edge, regardless of the type of data used. Microsoft built it as part of its own red team attack-testing efforts. Organizations can use this tool to attempt to try to evade and steal AI models, Microsoft indicated. It has a logging capability that provides telemetry information, which can be used to understand AI model failures. ....
03/10/2021 The U.S. Cybersecurity and Infrastructure Security Agency (CISA) and the Federal Bureau of Investigation (FBI) announced a Microsoft Exchange Server joint advisory (AA-21-069) on Wednesday that offers consolidated advice for Exchange Server users on detecting Hafnium attacks. The advice, which offers practical measures for IT pros to take, is based on republished materials, and was partially derived from multiple open source reports. Organizations using Exchange Server products currently are under active attack by a supposed nation-state attacker, dubbed Hafnium, via zero-day vulnerabilities in those products. Microsoft s Exchange Online serviced isn t considered to be vulnerable, though. In general, CISA and the FBI are advising organizations running Exchange Server to look for indicators of compromise using various tools and logs. If indicators of compromise are detected and organizations lack forensic skills for further investigation, the ....