Detectionmediumtest
Uncommon Svchost Parent Process
Detects an uncommon svchost parent process
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Florian Roth (Nextron Systems)Created Tue Aug 15Updated Tue Jun 2801d2e2a1-5f09-44f7-9fc1-24faa7479b6dwindows
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:
selection:
Image|endswith: '\svchost.exe'
filter_main_generic:
ParentImage|endswith:
- '\Mrt.exe'
- '\MsMpEng.exe'
- '\ngen.exe'
- '\rpcnet.exe'
- '\services.exe'
- '\TiWorker.exe'
filter_main_parent_null:
ParentImage: null
filter_main_parent_empty:
ParentImage:
- '-'
- ''
condition: selection and not 1 of filter_main_*False Positives
Unknown
False positive likelihood has not been assessed. Additional context may be needed during triage.
References
1
Resolving title…
Internal ResearchMITRE ATT&CK
Tactics
Sub-techniques
Rule Metadata
Rule ID
01d2e2a1-5f09-44f7-9fc1-24faa7479b6d
Status
test
Level
medium
Type
Detection
Created
Tue Aug 15
Modified
Tue Jun 28
Path
rules/windows/process_creation/proc_creation_win_svchost_uncommon_parent_process.yml
Raw Tags
attack.defense-evasionattack.t1036.005