Emerging Threathightest
Suspicious RazerInstaller Explorer Subprocess
Detects a explorer.exe sub process of the RazerInstaller software which can be invoked from the installer to select a different installation folder but can also be exploited to escalate privileges to LOCAL SYSTEM
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Launch
Florian Roth (Nextron Systems), Maxime ThiebautCreated Mon Aug 23Updated Sun Dec 01a4eaf250-7dc1-4842-862a-5e71cd59a1672021
Emerging Threat
Active Threat
Developed to detect an active or emerging threat. Prioritize investigation of any alerts and correlate with threat intelligence.
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:
ParentImage|endswith: '\RazerInstaller.exe'
IntegrityLevel:
- 'System'
- 'S-1-16-16384' # System
filter_main_razer:
Image|startswith: 'C:\Windows\Installer\Razer\Installer\'
condition: selection and not 1 of filter_main_*False Positives
User selecting a different installation folder (check for other sub processes of this explorer.exe process)
MITRE ATT&CK
Techniques
Other
detection.emerging-threats
Rule Metadata
Rule ID
a4eaf250-7dc1-4842-862a-5e71cd59a167
Status
test
Level
high
Type
Emerging Threat
Created
Mon Aug 23
Modified
Sun Dec 01
Path
rules-emerging-threats/2021/Exploits/RazerInstaller-LPE-Exploit/proc_creation_win_exploit_other_razorinstaller_lpe.yml
Raw Tags
attack.defense-evasionattack.privilege-escalationattack.t1553detection.emerging-threats