TerraStealerV2 Data Staging in Bay0NsQIzx Package Directory (via file_event)

PremiumReviewedSigma · High · v1
Product
windows
Category
file_event
Author
HuntRule
Published
2026-09-01
Updated
2026-09-01

ATT&CK techniques

Collection
  1. Recon

  2. Resource Dev

  3. Initial Access

  4. Execution

  5. Persistence

  6. Priv Esc

  7. Defense Evasion

  8. Cred Access

  9. Discovery

  10. Lateral Movement

  11. C2

  12. Exfiltration

  13. Impact

What it detects

This rule detects TerraStealerV2 staging collected browser and wallet data inside the hardcoded Bay0NsQIzx package directory under LocalAppData before archiving it for exfiltration. Adversaries leverage a fixed staging folder to consolidate stolen artifacts, making file writes into this named directory a high-confidence collection indicator.

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TerraStealerV2 Data Staging in Bay0NsQIzx Package Directory (via file_event)
Pivot detection · T1074.001 · 9 related

Detection content is published as a reviewed draft. Tune thresholds and exclusions against your own telemetry before enabling this rule for alerting.