Detectionhightest
Suspicious Regsvr32 Execution From Remote Share
Detects REGSVR32.exe to execute DLL hosted on remote shares
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Launch
Nasreddine Bencherchali (Nextron Systems)Created Mon Oct 3188a87a10-384b-4ad7-8871-2f9bf9259ce5windows
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_img:
- Image|endswith: '\regsvr32.exe'
- OriginalFileName: '\REGSVR32.EXE'
selection_cli:
CommandLine|contains: ' \\\\'
condition: all of selection_*False Positives
Unknown
False positive likelihood has not been assessed. Additional context may be needed during triage.
References
MITRE ATT&CK
Tactics
Sub-techniques
Rule Metadata
Rule ID
88a87a10-384b-4ad7-8871-2f9bf9259ce5
Status
test
Level
high
Type
Detection
Created
Mon Oct 31
Path
rules/windows/process_creation/proc_creation_win_regsvr32_remote_share.yml
Raw Tags
attack.defense-evasionattack.t1218.010