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Executive Summary
Netskope Threat Research Labs recently detected several strains of encrypted files across several cloud instances with the infamous LockerGoga Ransomware. The Ransomware was shared among users in multiple cloud instances of Microsoft OneDrive and Box, enabling the ransomware to fan-out within the organizations.
This blog provides an overview of the LockerGoga ransomware samples we discovered, including some key differences between these new samples and the ones that were discovered earlier this year. We also reiterate the two different levels at which we can prevent the LockerGoga ransomware from spreading within an organization.
Netskope Detection
Netskope detects LockerGoga at two levels: Our threat protection engine detects the delivery vehicles and payloads, and our ransomware encrypted file detection and recovery engine detects and enables the rapid recovery of files encrypted by ransomware.
Netskope threat protection detects the samples LockerGoga Ransomware as “Win32.Trojan.Lockergoga” and the encrypted files as “Gen.Ransom.Encrypted.File.ns”. The screenshot in Figure 1 shows two files, shared via Box, that were encrypted by the LockerGoga Ransomware. The encrypted files can be automatically restored to their original, unencrypted state.
