Ragnar Locker Ransomware Targets MSP Enterprise Support Tools
A ransomware called Ragnar Locker is specifically targeting software commonly used by managed service providers to prevent their attack from being detected and stopped.
Attackers first began using the Ragnar Locker ransomware towards the end of December 2019 as part of attacks against compromised networks.
When the attackers first compromise a network, they will perform reconnaissance and pre-deployment tasks before executing the ransomware.
According to the attackers, one of these pre-deployment tasks is to first steal a victim’s files and upload it to their servers. They then tell the victim that they will release the files publicly if a ransom is not paid.
“Also, all of your sensitive and private information were gathered and if you decide NOT to pay, we will upload it for public view !,” the attackers state in the Ragnar Locker ransom note.
When ready, the attackers build a highly targeted ransomware executable that contains a specific extension to use for encrypted files, an embedded RSA-2048 key, and a custom ransom note that includes the victim’s company name and ransom amount.
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