Sigma rule: Share And Session Enumeration Using Net.EXE

Rule

Title

Share And Session Enumeration Using Net.EXE

Status

stable

Level

low

Author

Endgame, JHasenbusch (ported for oscd.community)

Date

2018-10-30

Modified

2023-02-21

File

rules/windows/process_creation/proc_creation_win_net_view_share_and_sessions_enum.yml

Commit

ccbb0369507f796db0b0ae6854c8a2be471b9d84

Detects attempts to enumerate file shares, printer shares and sessions using "net.exe" with the "view" flag.

Log source

product

windows

category

process_creation

Detection

selection_img:
    - Image|endswith:
          - '\net.exe'
          - '\net1.exe'
    - OriginalFileName:
          - 'net.exe'
          - 'net1.exe'
selection_cli:
    CommandLine|contains: 'view'
filter:
    CommandLine|contains: '\\\\'
condition: all of selection_* and not filter

False positives (as the rule lists them)

• Legitimate use of net.exe utility by legitimate user

Tags

• attack.discovery
• attack.t1018

MITRE ATT&CK ids this rule names

• T1018

References

• https://eqllib.readthedocs.io/en/latest/analytics/b8a94d2f-dc75-4630-9d73-1edc6bd26fff.html
• https://github.com/redcanaryco/atomic-red-team/blob/f339e7da7d05f6057fdfcdd3742bfcf365fee2a9/atomics/T1018/T1018.md

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/process_creation/proc_creation_win_net_view_share_and_sessions_enum.yml