Suspicious SQL Server Payload Staging via bcp queryout (via process_creation)

ATT&CK techniques

Execution

Recon
Resource Dev
Initial Access
Execution
- T1059.003Windows Command Shell
Persistence
Priv Esc
Defense Evasion
Cred Access
Discovery
Lateral Movement
Collection
C2
Exfiltration
Impact

What it detects

This rule detects the SQL Server bulk copy program launched from the sqlservr process to export binary data from a database table to a file using the queryout parameter. The STAC6451 cluster abused exposed SQL Server instances and xp_cmdshell to stage Mimic ransomware and supporting tools on disk through bcp queryout.

Reporting behind it

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Suspicious SQL Server Payload Staging via bcp queryout (via process_creation)

Pivot detection · T1059.003 · 9 related

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

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