Sigma rule: Writing Local Admin Share

Rule

Title

Writing Local Admin Share

Status

test

Level

medium

Author

frack113

Date

2022-01-01

Modified

2022-08-13

File

rules/windows/file/file_event/file_event_win_writing_local_admin_share.yml

Commit

ccbb0369507f796db0b0ae6854c8a2be471b9d84

Aversaries may use to interact with a remote network share using Server Message Block (SMB).
This technique is used by post-exploitation frameworks.

Log source

product

windows

category

file_event

Detection

selection:
    TargetFilename|contains|all:
        - '\\\\127.0.0'
        - '\ADMIN$\'
condition: selection

False positives (as the rule lists them)

• Unknown

Tags

• attack.privilege-escalation
• attack.persistence
• attack.lateral-movement
• attack.t1546.002

MITRE ATT&CK ids this rule names

• T1546.002

References

• https://github.com/redcanaryco/atomic-red-team/blob/f339e7da7d05f6057fdfcdd3742bfcf365fee2a9/atomics/T1021.002/T1021.002.md#atomic-test-4---execute-command-writing-output-to-local-admin-share

Read on 2026-11-03T00:58:21.399Z under licence sigma-drl-1.1@d5f4c36a from https://github.com/SigmaHQ/sigma/blob/ccbb0369507f796db0b0ae6854c8a2be471b9d84/rules/windows/file/file_event/file_event_win_writing_local_admin_share.yml