blackbyte
Hecamede
Ransomware. Uses dropper written in JavaScript to deploy a .NET payload.
techniques · ATT&CK
blackbyte
BlackByte (Hecamede) is a financially motivated ransomware group targeting critical infrastructure.
Analyst brief
BlackByte (also known as Hecamede) is a financially motivated ransomware group. It targets a broad range of organizations, with a focus on critical infrastructure sectors. The actor gains initial access by exploiting vulnerabilities in public-facing applications, then leverages Mimikatz for credential dumping and uses Cobalt Strike with RDP for lateral movement. Defenders should prioritize timely patching of internet-facing systems, implement endpoint and email rules against JavaScript-based droppers, and actively monitor for the use of tools like PsExec, AdFind, and Mimikatz.
crime
Kill-chain playbook14
Monitor network traffic for Virtual Private Server (VPS) usage and investigate unusual activity.
Use web application firewalls and ingress monitoring systems to detect exploit attempts on public-facing applications.
Monitor Scheduled Task creation and modification, especially those with suspicious or unknown origins.
Regularly monitor service logs and configurations to detect new or modified Windows services.
Monitor system logs and process behavior related to privilege escalation to detect exploitation attempts.
Monitor file extensions and types, detecting and analyzing suspicious or masqueraded files.
Monitor process behavior and system logs to detect OS Credential Dumping from the system.
Monitor system logs and process behavior to detect System Network Configuration Discovery and System Information Discovery operations.
Monitor RDP connections and authentication attempts, detecting suspicious or unauthorized RDP activity.
Monitor file system and process behavior to detect archiving of collected data.
Monitor network traffic and process behavior to detect suspicious Web Protocols and Ingress Tool Transfer.
Monitor network traffic and process behavior to detect Exfiltration Over C2 Channel.
Monitor system configurations and logs to detect Disable or Modify System Firewall.
Regularly inspect web application and server configurations to detect Internal Defacement operations.
FAQ2
How does the BlackByte ransomware group gain initial access?
The group gains initial access by exploiting vulnerabilities in public-facing applications.
What recommendations are given to defenders against BlackByte?
It is recommended to patch internet-facing systems, implement endpoint and email rules against JavaScript-based droppers, and actively monitor for the use of tools like PsExec, AdFind, and Mimikatz.
See also3
Every claim on this page is drawn from the cited source (MISP Galaxy, MITRE ATT&CK, ransomware.live) — no attribution is invented.