Transferring Files with Credential Data via Network Shares — Sigma Rule

Rule metadata and linked tags

Author: Teymur Kheirkhabarov, oscd.community. Source status: test; severity: medium. Source dates: 2019-10-22 / 2025-07-11.

{
  "product": "windows",
  "service": "security"
}

Pinned original Sigma rule · Detection Rule License 1.1

Source SHA-256: 6bcb7e9790af728075c2a41e8e498c92ed863c0e302a9cc2dc5fc7fb23a5d22e

Detection logic

Original source YAML. Source-tag agreement is not proof of complete semantic coverage. This rule has not been compiled for a SIEM backend or validated against live telemetry here.

title: Transferring Files with Credential Data via Network Shares
id: 910ab938-668b-401b-b08c-b596e80fdca5
related:
    - id: 2e69f167-47b5-4ae7-a390-47764529eff5
      type: similar
status: test
description: Transferring files with well-known filenames (sensitive files with credential data) using network shares
references:
    - https://www.slideshare.net/heirhabarov/hunting-for-credentials-dumping-in-windows-environment
author: Teymur Kheirkhabarov, oscd.community
date: 2019-10-22
modified: 2025-07-11
tags:
    - attack.credential-access
    - attack.t1003.002
    - attack.t1003.001
    - attack.t1003.003
logsource:
    product: windows
    service: security
detection:
    selection_eid:
        EventID: 5145
    selection_object:
        - RelativeTargetName|contains:
              - '\mimidrv'
              - '\lsass'
              - '\windows\minidump\'
              - '\hiberfil'
              - '\sqldmpr'
        - RelativeTargetName:
              - 'Windows\NTDS\ntds.dit'
              - 'Windows\System32\config\SAM'
              - 'Windows\System32\config\SECURITY'
              - 'Windows\System32\config\SYSTEM'
    condition: all of selection_*
falsepositives:
    - Transferring sensitive files for legitimate administration work by legitimate administrator
level: medium

Original YAML and metadata in JSON

False positives

• Transferring sensitive files for legitimate administration work by legitimate administrator

Source references

• https://www.slideshare.net/heirhabarov/hunting-for-credentials-dumping-in-windows-environment