Threat Huntmediumtest
Potential Password Reconnaissance Via Findstr.EXE
Detects command line usage of "findstr" to search for the "passwords" keyword in a variety of different languages
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Hunting Hypothesis
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:
- Image|endswith: '\findstr.exe'
- OriginalFileName: 'FINDSTR.EXE'
selection_cli:
CommandLine|contains:
- 'contraseña' # Spanish
- 'hasło' # Polish
- 'heslo' # Czech
- 'parola' # Italian
- 'passe' # French
- 'passw' # German, English
- 'senha' # Portuguese
- 'senord' # Swedish
- '密碼' # Cantonese
condition: all of selection_*False Positives
Unknown
False positive likelihood has not been assessed. Additional context may be needed during triage.
MITRE ATT&CK
Tactics
Sub-techniques
Other
detection.threat-hunting
Rule Metadata
Rule ID
1a0f6f16-2099-4753-9a02-43b6ac7a1fa5
Status
test
Level
medium
Type
Threat Hunt
Created
Thu May 18
Author
Path
rules-threat-hunting/windows/process_creation/proc_creation_win_findstr_password_recon.yml
Raw Tags
attack.credential-accessattack.t1552.001detection.threat-hunting