Spear Fishing: The Key to the Garmin Ransomware Attack

August 11, 2020

DarkCyber is not too keen on widely disseminated explanations of criminal procedures. “How to’s” may provide the equivalent of a jail house education to some. The article “Crypto-Ransomware in Action: A Closer Look at the WastedLocker Hijack of Garmin” explains the attack on the an outfit specializing geo-technology. Think GPS in consumer gizmos, aircraft, and vehicle. The write up quotes Kaspersky, a security outfit with some interesting allegations clinging to its shirt tails, as noting:

“This incident only highlights that there is a growing trend of targeted crypto-ransomware attacks against large corporations—in contrast to the more widespread and popular ransomware campaigns of the past, like WannaCry and NotPetya. While there are fewer victims, these targeted attacks are typically more sophisticated and destructive. And there is no evidence to suggest that they will decline in the near future. Therefore, it’s critical that organizations stay on alert and take steps to protect themselves.” [Fedor Sinitsyn, security expert at Kaspersky]

Additional details on the attack are available in the technical analysis on the Kaspersky Web site at this link. The write up includes screenshots and code samples. The details include this statement:

It uses a “classic” AES+RSA cryptographic scheme which is strong and properly implemented, and therefore the files encrypted by this sample cannot be decrypted without the threat actors’ private RSA key. The Garmin incident is the next in a series of targeted attacks on large organizations involving crypto-ransomware. Unfortunately, there is no reason to believe that this trend will decline in the near future.

DarkCyber agrees. Jail house learning?

Stephen E Arnold, August 11, 2020

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