Detectionhightest
Dllhost.EXE Execution Anomaly
Detects a "dllhost" process spawning with no commandline arguments which is very rare to happen and could indicate process injection activity or malware mimicking similar system processes.
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Launch
Nasreddine Bencherchali (Nextron Systems)Created Mon Jun 27Updated Mon May 15e7888eb1-13b0-4616-bd99-4bc0c2b054b9windows
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 Logic2 selectors
detection:
selection:
Image|endswith: '\dllhost.exe'
CommandLine:
- 'dllhost.exe'
- 'dllhost'
filter_main_null:
CommandLine: null
condition: selection and not 1 of filter_main_*False Positives
Unlikely
False positives are unlikely for most environments. High confidence detection.
MITRE ATT&CK
Rule Metadata
Rule ID
e7888eb1-13b0-4616-bd99-4bc0c2b054b9
Status
test
Level
high
Type
Detection
Created
Mon Jun 27
Modified
Mon May 15
Path
rules/windows/process_creation/proc_creation_win_dllhost_no_cli_execution.yml
Raw Tags
attack.privilege-escalationattack.defense-evasionattack.t1055