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Detectionhightest

Sysmon Driver Unloaded Via Fltmc.EXE

Detects possible Sysmon filter driver unloaded via fltmc.exe

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Launch
Kirill Kiryanov, oscd.communityCreated Wed Oct 23Updated Mon Feb 134d7cda18-1b12-4e52-b45c-d28653210df8windows
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_img:
        - Image|endswith: '\fltMC.exe'
        - OriginalFileName: 'fltMC.exe'
    selection_cli:
        CommandLine|contains|all:
            - 'unload'
            - 'sysmon'
    condition: all of selection_*
False Positives
Unlikely

False positives are unlikely for most environments. High confidence detection.

References
1
Resolving title…
darkoperator.com
MITRE ATT&CK
Related Rules
SimilarDetectionmedium

Filter Driver Unloaded Via Fltmc.EXE

Detect filter driver unloading activity via fltmc.exe

Detects similar activity. Both rules may fire on overlapping events.

Rule Metadata
Rule ID
4d7cda18-1b12-4e52-b45c-d28653210df8
Status
test
Level
high
Type
Detection
Created
Wed Oct 23
Modified
Mon Feb 13
Author
Kirill Kiryanov, oscd.community
Path
rules/windows/process_creation/proc_creation_win_fltmc_unload_driver_sysmon.yml
Raw Tags
attack.defense-evasionattack.t1070attack.t1562attack.t1562.002
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