frack113
27 lines
1.3 KiB
YAML
27 lines
1.3 KiB
YAML
title: EfsPotato Named Pipe
|
|
id: 637f689e-b4a5-4a86-be0e-0100a0a33ba2
|
|
status: experimental
|
|
description: Detects the pattern of a pipe name as used by the tool EfsPotato
|
|
references:
|
|
- https://twitter.com/SBousseaden/status/1429530155291193354?s=20
|
|
- https://github.com/zcgonvh/EfsPotato
|
|
date: 2021/08/23
|
|
author: Florian Roth
|
|
logsource:
|
|
product: windows
|
|
category: pipe_created
|
|
definition: 'Note that you have to configure logging for Named Pipe Events in Sysmon config (Event ID 17 and Event ID 18). The basic configuration is in popular sysmon configuration (https://github.com/SwiftOnSecurity/sysmon-config), but it is worth verifying. You can also use other repo, e.g. https://github.com/Neo23x0/sysmon-config, https://github.com/olafhartong/sysmon-modular. How to test detection? You can check powershell script from this site https://svch0st.medium.com/guide-to-named-pipes-and-hunting-for-cobalt-strike-pipes-dc46b2c5f575'
|
|
detection:
|
|
selection:
|
|
PipeName|contains:
|
|
- '\pipe\'
|
|
- '\pipe\srvsvc' # more specific version (use only this one of the other causes too many false positives)
|
|
condition: selection
|
|
tags:
|
|
- attack.defense_evasion
|
|
- attack.privilege_escalation
|
|
- attack.t1055
|
|
falsepositives:
|
|
- Unknown
|
|
level: critical
|