Emerging Threats
Malware2021

BlackByte

2Rules
3References
1Folders
2025-10-21Latest
Summary

BlackByte is tracked here as a malware family or toolset with 2 Sigma detections spanning 2021. Coverage centers on windows / process_creation, windows / registry_set.

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hightestEmerging Threat

Blackbyte Ransomware Registry

Detects specific windows registry modifications made by BlackByte ransomware variants. BlackByte set three different registry values to escalate privileges and begin setting the stage for lateral movement and encryption. This rule triggers when any of the following registry keys are set to DWORD 1, however all three should be investigated as part of a larger BlackByte ransomware detection and response effort.

windowsregistry_set2 samples
2025-10-21
References