Detection rules › Sigma
Process Execution From A Potentially Suspicious Folder
Detects a potentially suspicious execution from an uncommon folder.
MITRE ATT&CK coverage
| Tactic | Techniques |
|---|---|
| Defense Evasion | T1036 Masquerading |
Event coverage
| Provider | Event ID | Title |
|---|---|---|
| Sysmon | 1 | Process creation |
| Security-Auditing | 4688 | A new process has been created. |
Stages and Predicates
Stage 1: selection
or:
Image|contains: '$Recycle.bin'
Image|contains: ':\Perflogs\'
Image|contains: ':\Users\All Users\'
Image|contains: ':\Users\Default\'
Image|contains: ':\Users\NetworkService\'
Image|contains: ':\Windows\Fonts\'
Image|contains: ':\Windows\Help\'
Image|contains: ':\Windows\IME\'
Image|contains: ':\Windows\Media\'
Image|contains: ':\Windows\System32\Tasks\'
Image|contains: ':\Windows\Tasks\'
Image|contains: ':\Windows\addins\'
Image|contains: ':\Windows\debug\'
Image|contains: ':\Windows\repair\'
Image|contains: ':\Windows\security\'
Image|contains: '\Intel\Logs\'
Image|contains: '\RSA\MachineKeys\'
Image|contains: '\config\systemprofile\'
Stage 2: not 1 of filter_optional_*
or:
Image|endswith: '\CitrixReceiverUpdater.exe'
Image|startswith: 'C:\Windows\SysWOW64\config\systemprofile\Citrix\UpdaterBinaries\'
Image|startswith: 'C:\Users\Public\IBM\ClientSolutions\Start_Programs\'
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 |
|---|---|---|
Image | ends_with |
|
Image | match |
|
Image | starts_with |
|