Detectionmediumtest
Root Certificate Installed - PowerShell
Adversaries may install a root certificate on a compromised system to avoid warnings when connecting to adversary controlled web servers.
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oscd.community, Zach StanfordCreated Sat Oct 10Updated Fri Dec 0242821614-9264-4761-acfc-5772c3286f76windows
Log Source
WindowsPowerShell Script
ProductWindows← raw: windows
CategoryPowerShell Script← raw: ps_script
Definition
Requirements: Script Block Logging must be enabled
Detection Logic
Detection Logic2 selectors
detection:
selection1:
ScriptBlockText|contains|all:
- 'Move-Item'
- 'Cert:\LocalMachine\Root'
selection2:
ScriptBlockText|contains|all:
- 'Import-Certificate'
- 'Cert:\LocalMachine\Root'
condition: 1 of selection*False Positives
Help Desk or IT may need to manually add a corporate Root CA on occasion. Need to test if GPO push doesn't trigger FP
References
MITRE ATT&CK
Tactics
Sub-techniques
Rule Metadata
Rule ID
42821614-9264-4761-acfc-5772c3286f76
Status
test
Level
medium
Type
Detection
Created
Sat Oct 10
Modified
Fri Dec 02
Author
Path
rules/windows/powershell/powershell_script/posh_ps_root_certificate_installed.yml
Raw Tags
attack.defense-evasionattack.t1553.004