XORIndex Loader
- ID
- S1248
- Type
- Malware
- Platforms
- Windows
- Source
- attack.mitre.org
- MITRE last modified
- 24 Oct 2025
XORIndex Loader is a XOR-encoded loader that collects host data, decodes follow-on scripts and acts as a downloader for the BeaverTail malware. XORIndex Loader was first reported in June 2025. XORIndex Loader has been leveraged by North Korea-affiliated threat actors identified as Contagious Interview. XORIndex Loader has been delivered to victims through code repository sites utilizing typo squatting naming conventions of various npm packages.[1]
Techniques used (12)
- T1016 System Network Configuration Discovery
- T1027.010 Command Obfuscation
- T1027.013 Encrypted/Encoded File
- T1033 System Owner/User Discovery
- T1036.005 Match Legitimate Resource Name or Location
- T1041 Exfiltration Over C2 Channel
- T1059.007 JavaScript
- T1071.001 Web Protocols
- T1082 System Information Discovery
- T1105 Ingress Tool Transfer
- T1140 Deobfuscate/Decode Files or Information
- T1614 System Location Discovery