Detectionmediumtest
Credential Manager Access By Uncommon Applications
Detects suspicious processes based on name and location that access the windows credential manager and vault. Which can be a sign of credential stealing. Example case would be usage of mimikatz "dpapi::cred" function
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Nasreddine Bencherchali (Nextron Systems)Created Tue Oct 11Updated Mon Jul 29407aecb1-e762-4acf-8c7b-d087bcff3bb6windows
Log Source
Windowsfile_access
ProductWindows← raw: windows
Categoryfile_access← raw: file_access
Definition
Requirements: Microsoft-Windows-Kernel-File ETW provider
Detection Logic
Detection Logic2 selectors
detection:
selection:
FileName|contains:
- '\AppData\Local\Microsoft\Credentials\'
- '\AppData\Roaming\Microsoft\Credentials\'
- '\AppData\Local\Microsoft\Vault\'
- '\ProgramData\Microsoft\Vault\'
filter_system_folders:
Image|startswith:
- 'C:\Program Files\'
- 'C:\Program Files (x86)\'
- 'C:\Windows\system32\'
- 'C:\Windows\SysWOW64\'
condition: selection and not 1 of filter_*False Positives
Legitimate software installed by the users for example in the "AppData" directory may access these files (for any reason).
MITRE ATT&CK
Tactics
Techniques
Rule Metadata
Rule ID
407aecb1-e762-4acf-8c7b-d087bcff3bb6
Status
test
Level
medium
Type
Detection
Created
Tue Oct 11
Modified
Mon Jul 29
Path
rules/windows/file/file_access/file_access_win_susp_credential_manager_access.yml
Raw Tags
attack.t1003attack.credential-access