## Context
After the suspicious OAuth token requests, evidence suggests APT29 is establishing persistence through the installation of backdoors.

## Key Findings
- **Backdoor Variants**: Several novel backdoor variants have been detected, designed to evade common detection mechanisms.
- **Persistence Mechanisms**: Techniques such as registry manipulation and scheduled tasks have been employed to maintain access.

## Next Steps
- Conduct a thorough forensic analysis of affected systems.
- Develop and deploy updated detection signatures for identified backdoor variants.