MUT-4831
MUT-4831 is a cybercrime syndicate with a financial motive, tracked by Brandefense. It uses 1 MITRE ATT&CK technique.
Also known as
- Aartje
- Saliii229911
- Techniques
- 1
- Exploited CVEs
- No CVE data
- Record updated
How They Operate · MITRE ATT&CK.
1 techniques across 1 of 14 tacticsReconnaissance·
Resource Development·
Initial Access·
Execution1
T1059.001
Command and Scripting Interpreter: PowerShell
Command and Scripting Interpreter: PowerShell
Persistence·
Privilege Escalation·
Defense Evasion·
Credential Access·
Discovery·
Lateral Movement·
Collection·
Command and Control·
Exfiltration·
Impact·
Arsenal · Malware And Tools.
- Vidarmalware
About MUT-4831.
A threat actor cluster responsible for a sophisticated supply chain attack targeting the npm ecosystem, distributing Vidar infostealer malware. They operated under npm accounts 'aartje' and 'saliii229911'.
Last updated Jul 24, 2026. Compiled by Brandefense technologies from structured threat intelligence and reviewed by Brandefense analysts. Techniques follow the MITRE ATT&CK framework.