Suspicious SoftEther VPN Hamcore Config Written to ProgramData (via file_event)

PremiumReviewedSigma · Medium · v1
Product
windows
Category
file_event
Author
HuntRule
Published
2026-08-21
Updated
2026-08-28

ATT&CK techniques

Initial Access → Persistence
  1. Recon

  2. Resource Dev

  3. Execution

  4. Priv Esc

  5. Defense Evasion

  6. Cred Access

  7. Discovery

  8. Lateral Movement

  9. Collection

  10. C2

  11. Exfiltration

  12. Impact

What it detects

This rule detects the creation of the SoftEther VPN hamcore.se2 archive or vpn_server.config under ProgramData as used by the Larva-26010 campaign to install a covert VPN tunnel on compromised web servers. These SoftEther artifacts in ProgramData indicate unauthorized remote access setup.

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Windows Process Creation: GoAnywhere child command execution indicating possible MFT exploitation
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Suspicious SoftEther VPN Hamcore Config Written to ProgramData (via file_event)
Pivot detection · T1133 · 9 related

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