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Malwarebytes said it was hacked by the same group who breached SolarWinds

Image: Malwarebytes

US cyber-security firm Malwarebytes today said it was hacked by the same group which breached IT software company SolarWinds last year.

Malwarebytes said its intrusion is not related to the SolarWinds supply chain incident since the company doesn’t use any of SolarWinds software in its internal network.

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Instead, the security firm said the hackers breached its internal systems by exploiting an Azure Active Directory weakness and abusing malicious Office 365 applications.

Malwarebytes said it learned of the intrusion from the Microsoft Security Response Center (MSRC) on December 15.

At the time, Microsoft was auditing its Office 365 and Azure infrastructures for signs of malicious apps created by the SolarWinds hackers, also known in cyber-security circles as UNC2452 or Dark Halo.

Malwarebytes said that once it learned of the breach, it began an internal investigation to determine what hackers accessed.

“After an extensive investigation, we determined the attacker only gained access to a limited subset of internal company emails,” said today Marcin Kleczynski, Malwarebytes co-founder and current CEO.

Malwarebytes products are not affected

Since the same threat actor breached SolarWinds and then moved to poison the company’s software by inserting the Sunburst malware into some updates for the SolarWinds Orion app, Kleczynski said they also performed a very thorough audit of all its products and their source code, searching for any signs of a similar compromise or past supply chain attack.

“Our internal systems showed no evidence of unauthorized access or compromise in any on-premises and production environments.

“Our software remains safe to use,” Kleczynski added.

After today’s disclosure, Malwarebytes becomes the fourth major security vendor targeted by the UNC2452/Dark Halo threat actor, which US officials have linked to a Russian government cyber-espionage operation.

Previously targeted companies include FireEye, Microsoft, and CrowdStrike.

SolarWinds Updates


Source: Information Technologies - zdnet.com

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