Potential Evasion via Filter Manager

Last updated 7 days ago on 2025-02-24
Created 5 years ago on 2020-02-18

About

The Filter Manager Control Program (fltMC.exe) binary may be abused by adversaries to unload a filter driver and evade defenses.
Tags
Domain: EndpointOS: WindowsUse Case: Threat DetectionTactic: Defense EvasionData Source: Elastic EndgameData Source: Elastic DefendData Source: Microsoft Defender for EndpointData Source: Windows Security Event LogsData Source: SysmonLanguage: eql
Severity
medium
Risk Score
47
MITRE ATT&CK™

Defense Evasion (TA0005)(opens in a new tab or window)

License
Elastic License v2(opens in a new tab or window)

Definition

Rule Type
Event Correlation Rule
Integration Pack
Prebuilt Security Detection Rules
Index Patterns
endgame-*logs-endpoint.events.process-*logs-m365_defender.event-*logs-system.security*logs-windows.forwarded*logs-windows.sysmon_operational-*winlogbeat-*
Related Integrations

endpoint(opens in a new tab or window)

windows(opens in a new tab or window)

m365_defender(opens in a new tab or window)

system(opens in a new tab or window)

Query
process where host.os.type == "windows" and event.type == "start" and
  process.name : "fltMC.exe" and process.args : "unload" and
  not process.parent.executable : 
                   ("?:\\Program Files (x86)\\ManageEngine\\UEMS_Agent\\bin\\DCFAService64.exe", 
                    "?:\\Windows\\SysWOW64\\msiexec.exe", 
                    "?:\\Program Files\\Bitdefender\\Endpoint Security\\installer\\installer.exe", 
                    "?:\\Program Files\\Bitdefender\\Endpoint Security\\EPSecurityService.exe", 
                    "?:\\Program Files\\Bitdefender\\Bitdefender Security\\productcfg.exe", 
                    "?:\\Program Files\\Bitdefender\\Bitdefender Security\\bdservicehost.exe", 
                    "?:\\Program Files\\Bitdefender\\EndpointSetupInformation\\{*}\\Installer.exe")

Install detection rules in Elastic Security

Detect Potential Evasion via Filter Manager in the Elastic Security detection engine by installing this rule into your Elastic Stack.

To setup this rule, check out the installation guide for Prebuilt Security Detection Rules(opens in a new tab or window).