{"id":"214e8f95-100a-4e04-bb31-ef6cba8ce07e","title":"DCERPC SMB Spoolss Named Pipe","description":"Detects the use of the spoolss named pipe over SMB. This can be used to trigger the authentication via NTLM of any machine that has the spoolservice enabled.","author":"OTR (Open Threat Research)","status":"test","level":"medium","date":"2018-11-28","modified":"2022-08-11","tags":["attack.lateral-movement","attack.t1021.002"],"technique_ids":["T1021.002"],"logsource":{"product":"windows","service":"security"},"falsepositives":["Domain Controllers acting as printer servers too? :)"],"references":["https://posts.specterops.io/hunting-in-active-directory-unconstrained-delegation-forests-trusts-71f2b33688e1","https://dirkjanm.io/a-different-way-of-abusing-zerologon/","https://twitter.com/_dirkjan/status/1309214379003588608"],"source_path":"rules/windows/builtin/security/win_security_dce_rpc_smb_spoolss_named_pipe.yml","source_sha256":"03b86f4282d6432a63de5ab772a8bb37547c964a1b1cfe67d5b5af046d08dd40","source_url":"https://github.com/anpa1200/sigma/blob/b249e9683190cffdcaf188ccbfb90bf4759844e1/rules/windows/builtin/security/win_security_dce_rpc_smb_spoolss_named_pipe.yml","license":"Detection Rule License 1.1","license_url":"https://github.com/SigmaHQ/Detection-Rule-License/blob/main/LICENSE.Detection.Rules.md","yaml":"title: DCERPC SMB Spoolss Named Pipe\nid: 214e8f95-100a-4e04-bb31-ef6cba8ce07e\nstatus: test\ndescription: Detects the use of the spoolss named pipe over SMB. This can be used to trigger the authentication via NTLM of any machine that has the spoolservice enabled.\nreferences:\n    - https://posts.specterops.io/hunting-in-active-directory-unconstrained-delegation-forests-trusts-71f2b33688e1\n    - https://dirkjanm.io/a-different-way-of-abusing-zerologon/\n    - https://twitter.com/_dirkjan/status/1309214379003588608\nauthor: OTR (Open Threat Research)\ndate: 2018-11-28\nmodified: 2022-08-11\ntags:\n    - attack.lateral-movement\n    - attack.t1021.002\nlogsource:\n    product: windows\n    service: security\ndetection:\n    selection:\n        EventID: 5145\n        ShareName: '\\\\\\\\\\*\\\\IPC$' # looking for the string \\\\*\\IPC$\n        RelativeTargetName: spoolss\n    condition: selection\nfalsepositives:\n    - 'Domain Controllers acting as printer servers too? :)'\nlevel: medium\n","validation":"yaml_parsed_not_backend_compiled_or_live_validated","techniques":[{"key":"enterprise/T1021.002","id":"T1021.002","name":"SMB/Windows Admin Shares","page":"techniques/enterprise/T1021.002/"}],"data_path":"data/detection-rules/214e8f95-100a-4e04-bb31-ef6cba8ce07e.json","kind":"sigma"}