splunk-security_content/docs/_stories/windows_persistence_techniques.md

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title	last_modified_at	toc	toc_label	tags
Windows Persistence Techniques	2018-05-31	true		Splunk Enterprise Splunk Enterprise Security Splunk Cloud Endpoint

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Description

Monitor for activities and techniques associated with maintaining persistence on a Windows system--a sign that an adversary may have compromised your environment.

• Product: Splunk Enterprise, Splunk Enterprise Security, Splunk Cloud
• Datamodel: Endpoint
• Last Updated: 2018-05-31
• Author: Bhavin Patel, Splunk
• ID: 30874d4f-20a1-488f-85ec-5d52ef74e3f9

Narrative

Maintaining persistence is one of the first steps taken by attackers after the initial compromise. Attackers leverage various custom and built-in tools to ensure survivability and persistent access within a compromised enterprise. This Analytic Story provides searches to help you identify various behaviors used by attackers to maintain persistent access to a Windows environment.

Detections

Name	Technique	Type
Active Setup Registry Autostart	Active Setup, Boot or Logon Autostart Execution	TTP
Certutil exe certificate extraction		TTP
Change Default File Association	Change Default File Association, Event Triggered Execution	TTP
Detect Path Interception By Creation Of program exe	Path Interception by Unquoted Path, Hijack Execution Flow	TTP
ETW Registry Disabled	Indicator Blocking, Trusted Developer Utilities Proxy Execution, Impair Defenses	TTP
Hiding Files And Directories With Attrib exe	File and Directory Permissions Modification, Windows File and Directory Permissions Modification	TTP
Logon Script Event Trigger Execution	Boot or Logon Initialization Scripts, Logon Script (Windows)	TTP
Monitor Registry Keys for Print Monitors	Port Monitors, Boot or Logon Autostart Execution	TTP
Print Processor Registry Autostart	Print Processors, Boot or Logon Autostart Execution	TTP
Reg exe Manipulating Windows Services Registry Keys	Services Registry Permissions Weakness, Hijack Execution Flow	TTP
Registry Keys Used For Persistence	Registry Run Keys / Startup Folder, Boot or Logon Autostart Execution	TTP
Registry Keys for Creating SHIM Databases	Application Shimming, Event Triggered Execution	TTP
Sc exe Manipulating Windows Services	Windows Service, Create or Modify System Process	TTP
Schedule Task with HTTP Command Arguments	Scheduled Task/Job	TTP
Schedule Task with Rundll32 Command Trigger	Scheduled Task/Job	TTP
Schtasks used for forcing a reboot	Scheduled Task, Scheduled Task/Job	TTP
Screensaver Event Trigger Execution	Event Triggered Execution, Screensaver	TTP
Shim Database File Creation	Application Shimming, Event Triggered Execution	TTP
Shim Database Installation With Suspicious Parameters	Application Shimming, Event Triggered Execution	TTP
Suspicious Scheduled Task from Public Directory	Scheduled Task, Scheduled Task/Job	Anomaly
Time Provider Persistence Registry	Time Providers, Boot or Logon Autostart Execution	TTP
WinEvent Scheduled Task Created Within Public Path	Scheduled Task, Scheduled Task/Job	TTP
WinEvent Scheduled Task Created to Spawn Shell	Scheduled Task, Scheduled Task/Job	TTP
WinEvent Windows Task Scheduler Event Action Started	Scheduled Task	Hunting

Reference

• http://www.fuzzysecurity.com/tutorials/19.html
• https://www.fireeye.com/blog/threat-research/2010/07/malware-persistence-windows-registry.html
• http://resources.infosecinstitute.com/common-malware-persistence-mechanisms/
• https://www.fireeye.com/blog/threat-research/2017/05/fin7-shim-databases-persistence.html
• https://www.youtube.com/watch?v=dq2Hv7J9fvk

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