Detectionmediumexperimental
Potential Lateral Movement via Windows Remote Shell
Detects a child process spawned by 'winrshost.exe', which suggests remote command execution through Windows Remote Shell (WinRs) and may indicate potential lateral movement activity.
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Log Source
WindowsProcess Creation
ProductWindows← raw: windows
CategoryProcess Creation← raw: process_creation
Events generated when a new process is spawned on the system. Covers command-line arguments, parent/child relationships, and process metadata.
Detection Logic
Detection Logic2 selectors
detection:
selection:
# Note: Example of command to simulate (winrm needs to be enabled): "c:\Windows\System32\winrs.exe" powershell
ParentImage|endswith: '\winrshost.exe'
filter_main_conhost:
Image: 'C:\Windows\System32\conhost.exe'
condition: selection and not 1 of filter_main_*False Positives
Legitimate use of WinRM within the organization
MITRE ATT&CK
Tactics
Sub-techniques
Rule Metadata
Rule ID
79df3f68-dccb-48e9-9171-b75cbc37c51d
Status
experimental
Level
medium
Type
Detection
Created
Wed Oct 22
Author
Path
rules/windows/process_creation/proc_creation_win_winrshost_command_execution.yml
Raw Tags
attack.lateral-movementattack.t1021.006