{"id":"bae2865c-5565-470d-b505-9496c87d0c30","title":"SMB Spoolss Name Piped Usage","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), @neu5ron","status":"test","level":"medium","date":"2018-11-28","modified":"2022-10-09","tags":["attack.lateral-movement","attack.t1021.002"],"technique_ids":["T1021.002"],"logsource":{"product":"zeek","service":"smb_files"},"falsepositives":["Domain Controllers that are sometimes, commonly although should not be, 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/network/zeek/zeek_dce_rpc_smb_spoolss_named_pipe.yml","source_sha256":"2228d3e118fcb8d634052c8e99db1ff3a136aa9c17d48c76e3b78d2200e40ee3","source_url":"https://github.com/anpa1200/sigma/blob/b249e9683190cffdcaf188ccbfb90bf4759844e1/rules/network/zeek/zeek_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: SMB Spoolss Name Piped Usage\nid: bae2865c-5565-470d-b505-9496c87d0c30\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), @neu5ron\ndate: 2018-11-28\nmodified: 2022-10-09\ntags:\n    - attack.lateral-movement\n    - attack.t1021.002\nlogsource:\n    product: zeek\n    service: smb_files\ndetection:\n    selection:\n        path|endswith: 'IPC$'\n        name: spoolss\n    condition: selection\nfalsepositives:\n    - Domain Controllers that are sometimes, commonly although should not be, 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/bae2865c-5565-470d-b505-9496c87d0c30.json","kind":"sigma"}