Threat Actor
UMBRAL BISON
- First Reported
- Oct 21, 2026
- Latest Reported
- Oct 21, 2026
Reported Context (1)
- Belarus-nexus adversary observed exploiting CopyFail at a Ukrainian government entity just over 20 hours after disclosure, then deploying a Mythic C2 Poseidon agent. CrowdStrike 2026 Threat Hunting Report Highlights Faster Exploitation and Rising Identity Attacks
CVE (3)
Malware (9)
Threat Actors (10)
MITRE ATT&CK (15)
Vendors (4)
Products (10)
Tools (10)
Industries (10)
Countries (9)
Note: Related entities, including threat actors, malware, CVEs, MITRE ATT&CK techniques, vendors, products, tools, countries, and industries, are shown when they appear in the same reporting. Their presence does not necessarily mean they were targeted, compromised, vulnerable, responsible for the activity, or directly involved in the incident.