The US Federal Bureau of Investigation (FBI) and CISA published a flash alert to warn that the Ragnar Locker ransomware gang has breached the networks of at least 52 organizations across 10 critical infrastructure sectors. The ransomware operation has been active since late December 2019, this is the second time that the FBI first shares IoC related to RagnarLocker operation, the FBI first became aware of this threat in April 2020.“As of January 2022, the FBI has identified at least 52 entities across 10 critical infrastructure sectors affected by RagnarLocker ransomware, including entities in the critical manufacturing, energy, financial services, government, and information technology sectors,” reads the FBI’s flash alert. “RagnarLocker ransomware actors work as part of a ransomware family, frequently changing obfuscation techniques to avoid detection and prevention.”
The flash alert provides details on attack infrastructure, Bitcoin addresses used by the gang to receive the payments of the ransom from the victims, and email addresses used by the gang’s operators.
The flash alert includes a series of mitigations to neutralize such attacks:
Users who identify any suspicious activity within their enterprise or have related information,
are recommended to contact their local FBI Cyber Squad immediately with respect to the procedures outlined in the Reporting Notice section of this message.
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This post was last modified on 8 March 2022 4:20 PM
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