Detection rules › Sigma
Findstr GPP Passwords
Look for the encrypted cpassword value within Group Policy Preference files on the Domain Controller. This value can be decrypted with gpp-decrypt.
MITRE ATT&CK coverage
| Tactic | Techniques |
|---|---|
| Credential Access | T1552.006 Unsecured Credentials: Group Policy Preferences |
Event coverage
| Provider | Event ID | Title |
|---|---|---|
| Sysmon | 1 | Process creation |
Stages and Predicates
Stage 1: all of selection_img
or:
Image|endswith: '\find.exe'
Image|endswith: '\findstr.exe'
OriginalFileName: FIND.EXE
OriginalFileName: FINDSTR.EXE
Stage 2: all of selection_cli
CommandLine|contains: .xml
CommandLine|contains: '\sysvol\'
CommandLine|contains: cpassword
Indicators
Each row is a field, operator, and value that the rule matches. The corpus column counts how many other rules in the catalog look for the same combination: high numbers point to widely-used, community-vetted indicators. Blank or 1 shows that the indicator is specific to this rule.
| Field | Kind | Values |
|---|---|---|
CommandLine | match |
|
Image | ends_with |
|
OriginalFileName | eq |
|