SigmaHQ/rules/windows/file_event/sysmon_susp_adsi_cache_usage.yml
2020-10-15 16:01:46 -03:00

33 lines
1.3 KiB
YAML
Executable File

title: Suspicious ADSI-Cache Usage By Unknown Tool
id: 75bf09fa-1dd7-4d18-9af9-dd9e492562eb
description: Detects the usage of ADSI (LDAP) operations by tools. This may also detect tools like LDAPFragger.
status: experimental
date: 2019/03/24
modified: 2020/08/23
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.t1071 # an old one
- attack.t1001.003
- attack.command_and_control
logsource:
product: windows
category: file_event
detection:
selection_1:
TargetFilename|endswith: '\Local\Microsoft\Windows\SchCache\\*.sch'
selection_2:
Image:
- 'C:\windows\system32\svchost.exe'
- 'C:\windows\system32\dllhost.exe'
- 'C:\windows\system32\mmc.exe'
- 'C:\windows\system32\WindowsPowerShell\v1.0\powershell.exe'
- 'C:\Windows\CCM\CcmExec.exe'
condition: selection_1 and not selection_2
falsepositives:
- Other legimate tools, which do ADSI (LDAP) operations, e.g. any remoting activity by MMC, Powershell, Windows etc.
level: high