Detectionmediumtest
Regsvr32 Execution From Potential Suspicious Location
Detects execution of regsvr32 where the DLL is located in a potentially suspicious location.
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Florian Roth (Nextron Systems), Nasreddine Bencherchali (Nextron Systems)Created Fri May 269525dc73-0327-438c-8c04-13c0e037e9dawindows
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:
- ':\ProgramData\'
- ':\Temp\'
- ':\Users\Public\'
- ':\Windows\Temp\'
- '\AppData\Local\Temp\'
- '\AppData\Roaming\'
condition: all of selection_*False Positives
Some installers might execute "regsvr32" with DLLs located in %TEMP% or in %PROGRAMDATA%. Apply additional filters if necessary.
MITRE ATT&CK
Tactics
Sub-techniques
Related Rules
Similar
Rule not found8e2b24c9-4add-46a0-b4bb-0057b4e6187d
Rule Metadata
Rule ID
9525dc73-0327-438c-8c04-13c0e037e9da
Status
test
Level
medium
Type
Detection
Created
Fri May 26
Path
rules/windows/process_creation/proc_creation_win_regsvr32_susp_exec_path_1.yml
Raw Tags
attack.defense-evasionattack.t1218.010