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Description

Detect tactics used by malware to evade defenses on Windows endpoints. A few of these include suspicious reg.exe processes, files hidden with attrib.exe and disabling user-account control, among many others

  • Product: Splunk Enterprise, Splunk Enterprise Security, Splunk Cloud
  • Datamodel: Endpoint
  • Last Updated: 2018-05-31
  • Author: David Dorsey, Splunk
  • ID: 56e24a28-5003-4047-b2db-e8f3c4618064

Narrative

Defense evasion is a tactic–identified in the MITRE ATT&CK framework–that adversaries employ in a variety of ways to bypass or defeat defensive security measures. There are many techniques enumerated by the MITRE ATT&CK framework that are applicable in this context. This Analytic Story includes searches designed to identify the use of such techniques on Windows platforms.

Detections

Name Technique Type
Reg exe used to hide files directories via registry keys Hidden Files and Directories TTP
Remote Registry Key modifications None TTP
Add or Set Windows Defender Exclusion Disable or Modify Tools, Impair Defenses TTP
CSC Net On The Fly Compilation Compile After Delivery, Obfuscated Files or Information Hunting
Disable Registry Tool Disable or Modify Tools, Impair Defenses TTP
Disable Security Logs Using MiniNt Registry Modify Registry TTP
Disable Show Hidden Files Hidden Files and Directories, Disable or Modify Tools, Hide Artifacts, Impair Defenses TTP
Disable UAC Remote Restriction Bypass User Account Control, Abuse Elevation Control Mechanism TTP
Disable Windows Behavior Monitoring Disable or Modify Tools, Impair Defenses TTP
Disable Windows SmartScreen Protection Disable or Modify Tools, Impair Defenses TTP
Disabling CMD Application Disable or Modify Tools, Impair Defenses TTP
Disabling ControlPanel Disable or Modify Tools, Impair Defenses TTP
Disabling Firewall with Netsh Disable or Modify Tools, Impair Defenses TTP
Disabling FolderOptions Windows Feature Disable or Modify Tools, Impair Defenses TTP
Disabling NoRun Windows App Disable or Modify Tools, Impair Defenses TTP
Disabling Remote User Account Control Bypass User Account Control, Abuse Elevation Control Mechanism TTP
Disabling SystemRestore In Registry Inhibit System Recovery TTP
Disabling Task Manager Disable or Modify Tools, Impair Defenses TTP
Eventvwr UAC Bypass Bypass User Account Control, Abuse Elevation Control Mechanism TTP
Excessive number of service control start as disabled Disable or Modify Tools, Impair Defenses Anomaly
Firewall Allowed Program Enable Disable or Modify System Firewall, Impair Defenses Anomaly
FodHelper UAC Bypass Modify Registry, Bypass User Account Control, Abuse Elevation Control Mechanism TTP
Hiding Files And Directories With Attrib exe File and Directory Permissions Modification, Windows File and Directory Permissions Modification TTP
NET Profiler UAC bypass Bypass User Account Control, Abuse Elevation Control Mechanism TTP
Powershell Windows Defender Exclusion Commands Disable or Modify Tools, Impair Defenses TTP
Sdclt UAC Bypass Bypass User Account Control, Abuse Elevation Control Mechanism TTP
SilentCleanup UAC Bypass Bypass User Account Control, Abuse Elevation Control Mechanism TTP
SLUI RunAs Elevated Bypass User Account Control, Abuse Elevation Control Mechanism TTP
SLUI Spawning a Process Bypass User Account Control, Abuse Elevation Control Mechanism TTP
Suspicious Reg exe Process Modify Registry TTP
UAC Bypass MMC Load Unsigned Dll Bypass User Account Control, Abuse Elevation Control Mechanism TTP
Windows Defender Exclusion Registry Entry Disable or Modify Tools, Impair Defenses TTP
Windows Disable Change Password Through Registry Modify Registry Anomaly
Windows Disable Lock Workstation Feature Through Registry Modify Registry Anomaly
Windows Disable Notification Center Modify Registry Anomaly
Windows Disable Windows Group Policy Features Through Registry Modify Registry Anomaly
Windows DisableAntiSpyware Registry Disable or Modify Tools, Impair Defenses TTP
Windows DISM Remove Defender Disable or Modify Tools, Impair Defenses TTP
Windows Event For Service Disabled Disable or Modify Tools, Impair Defenses Hunting
Windows Excessive Disabled Services Event Disable or Modify Tools, Impair Defenses TTP
Windows Hide Notification Features Through Registry Modify Registry Anomaly
Windows Modify Show Compress Color And Info Tip Registry Modify Registry TTP
Windows Process With NamedPipe CommandLine Process Injection Anomaly
Windows Rasautou DLL Execution Dynamic-link Library Injection, Signed Binary Proxy Execution, Process Injection TTP
WSReset UAC Bypass Bypass User Account Control, Abuse Elevation Control Mechanism TTP

Reference

source | version: 1