46 lines
1.6 KiB
YAML
46 lines
1.6 KiB
YAML
title: Suspicious ADSI-Cache Usage By Unknown Tool
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author: xknow @xknow_infosec
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date: 2019/03/24
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description: Detects the usage of ADSI (LDAP) operations by tools. This may also detect
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tools like LDAPFragger.
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detection:
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SELECTION_1:
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EventID: 11
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SELECTION_2:
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TargetFilename: '*\Local\Microsoft\Windows\SchCache\\*'
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SELECTION_3:
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TargetFilename: '*.sch'
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SELECTION_4:
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Image: C:\windows\system32\svchost.exe
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SELECTION_5:
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Image: C:\windows\system32\dllhost.exe
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SELECTION_6:
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Image: C:\windows\system32\mmc.exe
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SELECTION_7:
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Image: C:\windows\system32\WindowsPowerShell\v1.0\powershell.exe
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SELECTION_8:
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Image: C:\Windows\CCM\CcmExec.exe
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condition: (SELECTION_1 and (SELECTION_2 and SELECTION_3) and not ((SELECTION_4
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or SELECTION_5 or SELECTION_6 or SELECTION_7 or SELECTION_8)))
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falsepositives:
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- Other legimate tools, which do ADSI (LDAP) operations, e.g. any remoting activity
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by MMC, Powershell, Windows etc.
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id: 75bf09fa-1dd7-4d18-9af9-dd9e492562eb
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level: high
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logsource:
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category: file_event
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product: windows
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modified: 2020/08/23
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references:
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- https://medium.com/@ivecodoe/detecting-ldapfragger-a-newly-released-cobalt-strike-beacon-using-ldap-for-c2-communication-c274a7f00961
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- https://blog.fox-it.com/2020/03/19/ldapfragger-command-and-control-over-ldap-attributes/
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- https://github.com/fox-it/LDAPFragger
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status: experimental
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tags:
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- attack.t1071
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- attack.t1001.003
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- attack.command_and_control
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yml_filename: sysmon_susp_adsi_cache_usage.yml
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yml_path: /Users/user/Documents/YamatoSecurity/sigma/rules/windows/file_event
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