Detection rules › Sigma
Prefetch File Deleted
Detects the deletion of a prefetch file which may indicate an attempt to destroy forensic evidence
MITRE ATT&CK coverage
| Tactic | Techniques |
|---|---|
| Defense Evasion | T1070.004 Indicator Removal: File Deletion |
Event coverage
| Provider | Event ID | Title |
|---|---|---|
| Sysmon | 23 | FileDelete (File Delete archived) |
| Sysmon | 26 | FileDeleteDetected (File Delete logged) |
Stages and Predicates
Stage 1: selection
TargetFilename|endswith: .pf
TargetFilename|contains: ':\Windows\Prefetch\'
Stage 2: not 1 of filter_main_svchost
or:
User|contains: AUTHORI
User|contains: AUTORI
Image|endswith: ':\windows\system32\svchost.exe'
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 |
|
TargetFilename | ends_with |
|
TargetFilename | match |
|
User | match |
|