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Detectionmediumtest

Suspicious X509Enrollment - Process Creation

Detect use of X509Enrollment

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Launch
François HubautCreated Fri Dec 23114de787-4eb2-48cc-abdb-c0b449f93ea4windows
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 Logic1 selector
detection:
    selection:
        CommandLine|contains:
            - 'X509Enrollment.CBinaryConverter'
            - '884e2002-217d-11da-b2a4-000e7bbb2b09'
    condition: selection
False Positives

Legitimate administrative script

References
1
Resolving title…
speakerdeck.com
2
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speakerdeck.com
3
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learn.microsoft.com
MITRE ATT&CK
Related Rules
SimilarDetectionmedium

Suspicious X509Enrollment - Ps Script

Detect use of X509Enrollment

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

Rule Metadata
Rule ID
114de787-4eb2-48cc-abdb-c0b449f93ea4
Status
test
Level
medium
Type
Detection
Created
Fri Dec 23
Author
François Hubaut
Path
rules/windows/process_creation/proc_creation_win_powershell_x509enrollment.yml
Raw Tags
attack.defense-evasionattack.t1553.004
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