SigmaHQ/rules/windows/builtin/win_susp_ldap_dataexchange.yml
2020-03-26 17:03:33 +01:00

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YAML

title: Suspicious LDAP-Attributes Used
id: d00a9a72-2c09-4459-ad03-5e0a23351e36
description: detects the usage of particular AttributeLDAPDisplayNames, which are known for data exchange via LDAP by the tool LDAPFragger and are additionally not commonly used in companies.
status: experimental
date: 2019/03/24
author: xknow @xknow_infosec
references:
- https://medium.com/@ivecodoe/detecting-ldapfragger-a-newly-released-cobalt-strike-beacon-using-ldap-for-c2-communication-c274a7f00961
- https://blog.fox-it.com/2020/03/19/ldapfragger-command-and-control-over-ldap-attributes/
- https://github.com/fox-it/LDAPFragger
tags:
- attack.t1041
- attack.persistence
logsource:
product: windows
service: security
detection:
selection:
EventID: 5136
AttributeValue: '*'
AttributeLDAPDisplayName:
- 'primaryInternationalISDNNumber'
- 'otherFacsimileTelephoneNumber'
- 'primaryTelexNumber'
condition: selection
falsepositives:
- Companies, who may use these default LDAP-Attributes for personal information
level: high