Detection rules › Kusto Query Language
Dev-0228 File Path Hashes November 2021
'This hunting query looks for file paths/hashes related to observed activity by Dev-0228. The actor is known to use custom version of popular tool like PsExec, Procdump etc. to carry its activity. The risk score associated with each result is based on a number of factors, hosts with higher risk events should be investigated first.'
MITRE ATT&CK coverage
| Tactic | Techniques |
|---|---|
| Execution | T1569 System Services |
| Credential Access | T1003 OS Credential Dumping |
Event coverage
| Provider | Event ID | Title |
|---|---|---|
| Sysmon | 1 | Process creation |
| Security-Auditing | 4688 | A new process has been created. |
| Defender-DeviceProcessEvents | 9001000 | Process activity (any) |
Stages and Predicates
Stage 1: source
DeviceProcessEvents
Stage 2: where
or
and
FolderPath match "files1"
SHA256 match "FileHash1"
and
FolderPath match "files2"
SHA256 match "FileHash2"
Stage 3: extend
Stage 4: join
Stage 5: extend
Stage 6: extend
Stage 7: extend
Stage 8: extend
Stage 9: extend
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 |
|---|---|---|
FolderPath | match |
|
SHA256 | match |
|