Potential Secure File Deletion via SDelete Utilityedit

Detects file name patterns generated by the use of Sysinternals SDelete utility to securely delete a file via multiple file overwrite and rename operations.

Rule type: query

Rule indices:

  • winlogbeat-*
  • logs-endpoint.events.*

Severity: low

Risk score: 21

Runs every: 5 minutes

Searches indices from: now-9m (Date Math format, see also Additional look-back time)

Maximum alerts per execution: 100

Tags:

  • Elastic
  • Host
  • Windows
  • Threat Detection
  • Defense Evasion

Version: 1

Added (Elastic Stack release): 7.10.0

Rule authors: Elastic

Rule license: Elastic License

Investigation guideedit

Verify process details such as command line and hash to confirm this activity legitimacy.

Rule queryedit

event.category:file AND event.type:change AND file.name:/.+A+\.AAA/

Threat mappingedit

Framework: MITRE ATT&CKTM