Sigma rule: System Network Connections Discovery Via Net.EXE

Rule

Title

System Network Connections Discovery Via Net.EXE

Status

test

Level

low

Author

frack113

Date

2021-12-10

Modified

2023-02-21

File

rules/windows/process_creation/proc_creation_win_net_use_network_connections_discovery.yml

Commit

ccbb0369507f796db0b0ae6854c8a2be471b9d84

Adversaries may attempt to get a listing of network connections to or from the compromised system they are currently accessing or from remote systems by querying for information over the network.

Log source

product

windows

category

process_creation

Detection

selection_img:
    - Image|endswith:
          - '\net.exe'
          - '\net1.exe'
    - OriginalFileName:
          - 'net.exe'
          - 'net1.exe'
selection_cli:
    - CommandLine|endswith:
          - ' use'
          - ' sessions'
    - CommandLine|contains:
          - ' use '
          - ' sessions '
condition: all of selection_*

False positives (as the rule lists them)

• Unknown

Tags

• attack.discovery
• attack.t1049

MITRE ATT&CK ids this rule names

• T1049

References

• https://github.com/redcanaryco/atomic-red-team/blob/f339e7da7d05f6057fdfcdd3742bfcf365fee2a9/atomics/T1049/T1049.md#atomic-test-1---system-network-connections-discovery

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_use_network_connections_discovery.yml