Detectionhightest
Execution Of Non-Existing File
Checks whether the image specified in a process creation event is not a full, absolute path (caused by process ghosting or other unorthodox methods to start a process)
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Max Altgelt (Nextron Systems)Created Thu Dec 09Updated Wed Dec 1471158e3f-df67-472b-930e-7d287acaa3e1windows
Log Source
WindowsProcess Creation
ProductWindows← raw: windows
CategoryProcess Creation← raw: process_creation
Events generated when a new process is spawned on the system. Covers command-line arguments, parent/child relationships, and process metadata.
Detection Logic
Detection Logic4 selectors
detection:
image_absolute_path:
Image|contains: '\'
filter_null:
Image: null
filter_empty:
Image:
- '-'
- ''
filter_4688:
- Image:
- 'System'
- 'Registry'
- 'MemCompression'
- 'vmmem'
- CommandLine:
- 'Registry'
- 'MemCompression'
- 'vmmem'
condition: not image_absolute_path and not 1 of filter*False Positives
Unknown
False positive likelihood has not been assessed. Additional context may be needed during triage.
References
MITRE ATT&CK
Tactics
Rule Metadata
Rule ID
71158e3f-df67-472b-930e-7d287acaa3e1
Status
test
Level
high
Type
Detection
Created
Thu Dec 09
Modified
Wed Dec 14
Path
rules/windows/process_creation/proc_creation_win_susp_image_missing.yml
Raw Tags
attack.defense-evasion