UnclassifiedUnknown
Syshack
Syshack is a threat actor group, tracked by Brandefense. It targets 14 sectors, including Government and Technology, in 10 countries, including the United States and France. It uses 1 MITRE ATT&CK technique.
- Techniques
- 1
- Exploited CVEs
- No CVE data
- First seen
- Nov 11, 2026
- Last seen
- Nov 11, 2026
- Record updated
Who They Target.
Sectors · 14
How They Operate · MITRE ATT&CK.
1 techniques across 1 of 14 tacticsReconnaissance·
Resource Development·
Initial Access1
T1491.002
Defacement: External Defacement
Defacement: External Defacement
Execution·
Persistence·
Privilege Escalation·
Defense Evasion·
Credential Access·
Discovery·
Lateral Movement·
Collection·
Command and Control·
Exfiltration·
Impact·
About Syshack.
Hacking group with which Antonkill is affiliated and under whose team numerous website defacements were carried out on November 11, 2026.
Last updated Nov 12, 2026. Compiled by Brandefense technologies from structured threat intelligence and reviewed by Brandefense analysts. Techniques follow the MITRE ATT&CK framework.