Detectionmediumexperimental
Windows Recovery Environment Disabled Via Reagentc
Detects attempts to disable windows recovery environment using Reagentc. ReAgentc.exe is a command-line tool in Windows used to manage the Windows Recovery Environment (WinRE). It allows users to enable, disable, and configure WinRE, which is used for troubleshooting and repairing common boot issues.
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Launch
Daniel Koifman (KoifSec), Michael VilshinCreated Thu Jul 31db1c21e4-cd66-4b4e-85ca-590f0780529cwindows
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_img: # Example command simulated: reagentc /disable
- Image|endswith: '\reagentc.exe'
- OriginalFileName: 'reagentc.exe'
selection_cli:
CommandLine|contains|windash: '/disable'
condition: all of selection_*False Positives
Legitimate administrative activity
MITRE ATT&CK
Tactics
Techniques
Rule Metadata
Rule ID
db1c21e4-cd66-4b4e-85ca-590f0780529c
Status
experimental
Level
medium
Type
Detection
Created
Thu Jul 31
Path
rules/windows/process_creation/proc_creation_win_reagentc_disable_windows_recovery_environment.yml
Raw Tags
attack.impactattack.t1490