Massive remote schedule task creation via named pipes (CrackMapExec with ATexec)

title: Massive remote schedule task creation via named pipes (CrackMapExec with ATexec)
description: Detects scenarios where an attacker remotely creates a scheduled task on multiple hosts over named pipes to execute commands or elevate privileges.
references:
- https://github.com/mdecrevoisier/EVTX-to-MITRE-Attack/tree/master/TA0002-Execution/T1053.005-Scheduled%20Task
- https://github.com/SecureAuthCorp/impacket/blob/master/examples/atexec.py
- https://u0041.co/blog/post/1
- https://blog.menasec.net/2019/03/threat-hunting-25-scheduled-tasks-for.html
tags:
- attack.execution
- attack.t1053.005
author: mdecrevoisier
status: experimental
logsource:
  product: windows
  service: security
detection:
  selection:
    EventID: 5145
    ShareName: '\\*\IPC$'
    RelativeTargetName: atsvc
    AccessList|contains: '%%4417' # WriteData
  condition: selection | count(Computer) by IpAddress > 20
falsepositives:
- Administrator activity, backup solutions
level: medium