Detectionhightest
Security Service Disabled Via Reg.EXE
Detects execution of "reg.exe" to disable security services such as Windows Defender.
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Launch
Florian Roth (Nextron Systems), John Lambert, elhoimCreated Wed Jul 14Updated Mon Jun 055e95028c-5229-4214-afae-d653d573d0ecwindows
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_reg_add:
CommandLine|contains|all:
- 'reg'
- 'add'
selection_cli_reg_start:
CommandLine|contains|all:
- 'd 4'
- 'v Start'
CommandLine|contains:
- '\AppIDSvc'
- '\MsMpSvc'
- '\NisSrv'
- '\SecurityHealthService'
- '\Sense'
- '\UsoSvc'
- '\WdBoot'
- '\WdFilter'
- '\WdNisDrv'
- '\WdNisSvc'
- '\WinDefend'
- '\wscsvc'
- '\wuauserv'
condition: all of selection_*False Positives
Unlikely
False positives are unlikely for most environments. High confidence detection.
MITRE ATT&CK
Tactics
Sub-techniques
Rule Metadata
Rule ID
5e95028c-5229-4214-afae-d653d573d0ec
Status
test
Level
high
Type
Detection
Created
Wed Jul 14
Modified
Mon Jun 05
Path
rules/windows/process_creation/proc_creation_win_reg_disable_sec_services.yml
Raw Tags
attack.defense-evasionattack.t1562.001