![]() ![]() Malwarebytes does not use the SolarWinds Orion network monitoring tool that was compromised in the supply chain attack discovered last year. This allowed the attacker to authenticate with the digital key generated and to make application programming interface calls to request emails via the Microsoft Graph application. In Malwarebytes' case, the attacker added a self-signed digital certificate with credentials to the service principal account. Threat actors may have obtained initial access with sufficient administrative privileges through password guessing and spraying. Security company Malwarebytes says it has been targeted by a SolarWinds-related attack coming from Microsoft. The announcement makes Malwarebytes the third major cybersecurity firm targeted by the SolarWinds hackers. The attacker is believed to have abused applications with privileged access to Microsoft Office 365 and the Azure cloud computing environment to breach Malwarebytes, Kieczynski said.Ī flaw in Azure Active Directory discovered in 2019 allows attackers to abuse third-party applications to get access to tenants, Kieczynski said. Malwarebytes Confirms SolarWinds-Related Attack Through Microsoft 365 and Azure. The internet security software developer Malwarebytes announced on Tuesday that it suffered a security breach after SolarWinds hackers accessed the company’s internal email communication. The security vendor has joined CrowdStrike and CISA in releasing a new tool which will help organizations spot if their Microsoft 365 tenants have been subject to the same techniques used by the group."Our internal systems showed no evidence of unauthorised access or compromise in any on-premises and production environments," he wrote. This enabled them to use the legitimate permissions assigned to the application, such as reading emails, FireEye said. The attackers also backdoored existing Microsoft 365 apps by adding a new application or service principal credential. The SolarWinds hack exposed government and enterprise networks to hackers through a routine maintenance update to the companys Orion IT management. ![]() They include: stealing an Active Directory Federation Services (AD FS) token-signing certificate and using it to forge tokens for arbitrary users, compromising credentials of highly privileged on-premises accounts synced to Microsoft 365 and modifying/adding trusted domains in Azure AD to add a new federated Identity Provider (IdP) that the attacker controls. The news comes as FireEye released a new report detailing the various ways the SolarWinds attackers moved laterally to the Microsoft 365 cloud after gaining an initial foothold in networks. With our IT Operations Management solutions, SolarWinds is here to help you bridge your journey to Azure, and help provide end-to-end visibility and control of your Azure environment as part of your hybrid and multi-cloud IT strategy. Since last year, the state-backed breach has targeted users. Malwarebytes clarified that it found no evidence of unauthorized access or compromise in any of its on-premises or production environments. Major security and antivirus firm Malwarebytes says it was a victim of the recent SolarWinds breach through the Solarigate malware. We do not use Azure cloud services in our production environments.” “The investigation indicates the attackers leveraged a dormant email protection product within our Office 365 tenant that allowed access to a limited subset of internal company emails. “We received information from the Microsoft Security Response Center on December 15 about suspicious activity from a third-party application in our Microsoft Office 365 tenant consistent with the tactics, techniques and procedures (TTPs) of the same advanced threat actor involved in the SolarWinds attacks,” the vendor explained. The security vendor said attackers abused applications with privileged access to Microsoft Office 365 and Azure environments. ![]() While many of the organizations caught up in the suspected Russian cyber-espionage campaign were compromised via a malicious SolarWinds Orion update, US government agency CISA had previously pointed to a second threat vector. This involved use of password guessing or spraying and/or exploiting inappropriately secured admin or service credentials. Malwarebytes has confirmed that the SolarWinds attackers managed to access internal emails, although via a different intrusion vector to many victims. ![]()
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