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sigmalowHunting

System Network Connections Discovery Via Net.EXE

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.

MITRE ATT&CK

T1049
discovery

Detection Query

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_*

Author

frack113

Created

2021-12-10

Data Sources

windowsProcess Creation Events

Platforms

windows

References

Tags

attack.discoveryattack.t1049
Raw Content
title: System Network Connections Discovery Via Net.EXE
id: 1c67a717-32ba-409b-a45d-0fb704a73a81
status: test
description: 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.
references:
    - https://github.com/redcanaryco/atomic-red-team/blob/f339e7da7d05f6057fdfcdd3742bfcf365fee2a9/atomics/T1049/T1049.md#atomic-test-1---system-network-connections-discovery
author: frack113
date: 2021-12-10
modified: 2023-02-21
tags:
    - attack.discovery
    - attack.t1049
logsource:
    category: process_creation
    product: windows
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_*
falsepositives:
    - Unknown
level: low