sigmamediumHunting

Suspicious Remote Logon with Explicit Credentials

Detects suspicious processes logging on with explicit credentials

MITRE ATT&CK

privilege-escalationpersistenceinitial-accessdefense-evasionlateral-movement

Detection Query

selection:
  EventID: 4648
  ProcessName|endswith:
    - \cmd.exe
    - \powershell.exe
    - \pwsh.exe
    - \winrs.exe
    - \wmic.exe
    - \net.exe
    - \net1.exe
    - \reg.exe
filter1:
  TargetServerName: localhost
filter2:
  SubjectUserName|endswith: $
  TargetUserName|endswith: $
condition: selection and not 1 of filter*

Author

oscd.community, Teymur Kheirkhabarov @HeirhabarovT, Zach Stanford @svch0st, Tim Shelton

Created

2020-10-05

Data Sources

windowssecurity

Platforms

windows

References

https://drive.google.com/file/d/1lKya3_mLnR3UQuCoiYruO3qgu052_iS_/view

Tags

attack.privilege-escalationattack.persistenceattack.initial-accessattack.defense-evasionattack.t1078attack.lateral-movement

Raw Content

title: Suspicious Remote Logon with Explicit Credentials
id: 941e5c45-cda7-4864-8cea-bbb7458d194a
status: test
description: Detects suspicious processes logging on with explicit credentials
references:
    - https://drive.google.com/file/d/1lKya3_mLnR3UQuCoiYruO3qgu052_iS_/view
author: oscd.community, Teymur Kheirkhabarov @HeirhabarovT, Zach Stanford @svch0st, Tim Shelton
date: 2020-10-05
modified: 2022-08-03
tags:
    - attack.privilege-escalation
    - attack.persistence
    - attack.initial-access
    - attack.defense-evasion
    - attack.t1078
    - attack.lateral-movement
logsource:
    product: windows
    service: security
detection:
    selection:
        EventID: 4648
        ProcessName|endswith:
            - '\cmd.exe'
            - '\powershell.exe'
            - '\pwsh.exe'
            - '\winrs.exe'
            - '\wmic.exe'
            - '\net.exe'
            - '\net1.exe'
            - '\reg.exe'
    filter1:
        TargetServerName: 'localhost'
    filter2:
        SubjectUserName|endswith: '$'
        TargetUserName|endswith: '$'
    condition: selection and not 1 of filter*
falsepositives:
    - Administrators that use the RunAS command or scheduled tasks
level: medium