Detectionhighstable

CMSTP Execution Process Access

Detects various indicators of Microsoft Connection Manager Profile Installer execution

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Nik SeetharamanCreated Mon Jul 16Updated Sun Jun 273b4b232a-af90-427c-a22f-30b0c0837b95windows

Log Source

WindowsProcess Access

ProductWindows← raw: windows

CategoryProcess Access← raw: process_access

Events when a process opens a handle to another process, commonly used for credential dumping via LSASS.

Detection Logic

detection:
    # Process Access Call Trace
    selection:
        CallTrace|contains: 'cmlua.dll'
    condition: selection

False Positives

Legitimate CMSTP use (unlikely in modern enterprise environments)

References

MITRE ATT&CK

Tactics

Sub-techniques

Groups

CAR Analytics

2019-04-001 · CAR 2019-04-001

Rule Metadata

Rule ID

3b4b232a-af90-427c-a22f-30b0c0837b95

Status

stable

Level

high

Type

Detection

Created

Mon Jul 16

Modified

Sun Jun 27

Author

Path

rules/windows/process_access/proc_access_win_cmstp_execution_by_access.yml

Raw Tags

attack.defense-evasionattack.t1218.003attack.executionattack.t1559.001attack.g0069attack.g0080car.2019-04-001