Malicious Zhong Stealer Loader and Log Artifacts

PremiumReviewedSigma · High · v1
Product
windows
Category
file_event
Author
HuntRule
Published
2026-05-04
Updated
2026-08-28

ATT&CK techniques

C2
  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. Collection

  12. Exfiltration

  13. Impact

What it detects

This rule detects creation of TASLoginBase.dll or TASLogin.log, host artifacts written by the Zhong Stealer during execution and inventory logging. These filenames are unique to the Zhong Stealer toolkit targeting fintech support channels.

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Malicious Zhong Stealer Loader and Log Artifacts
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Detection content is published as a reviewed draft. Tune thresholds and exclusions against your own telemetry before enabling this rule for alerting.