{"id":"ba1f7802-adc7-48b4-9ecb-81e227fddfd5","title":"Potential Network Sniffing Activity Using Network Tools","description":"Detects potential network sniffing via use of network tools such as \"tshark\", \"windump\".\nNetwork sniffing refers to using the network interface on a system to monitor or capture information sent over a wired or wireless connection.\nAn adversary may place a network interface into promiscuous mode to passively access data in transit over the network, or use span ports to capture a larger amount of data.\n","author":"Timur Zinniatullin, oscd.community, Nasreddine Bencherchali (Nextron Systems)","status":"test","level":"medium","date":"2019-10-21","modified":"2023-02-20","tags":["attack.credential-access","attack.discovery","attack.t1040"],"technique_ids":["T1040"],"logsource":{"category":"process_creation","product":"windows"},"falsepositives":["Legitimate administration activity to troubleshoot network issues"],"references":["https://github.com/redcanaryco/atomic-red-team/blob/f339e7da7d05f6057fdfcdd3742bfcf365fee2a9/atomics/T1040/T1040.md"],"source_path":"rules/windows/process_creation/proc_creation_win_susp_network_sniffing.yml","source_sha256":"81a639feaf1368f9115c5932a85848c8cfe9279dd4a7efe1011c1eb14421d5d4","source_url":"https://github.com/anpa1200/sigma/blob/b249e9683190cffdcaf188ccbfb90bf4759844e1/rules/windows/process_creation/proc_creation_win_susp_network_sniffing.yml","license":"Detection Rule License 1.1","license_url":"https://github.com/SigmaHQ/Detection-Rule-License/blob/main/LICENSE.Detection.Rules.md","yaml":"title: Potential Network Sniffing Activity Using Network Tools\nid: ba1f7802-adc7-48b4-9ecb-81e227fddfd5\nstatus: test\ndescription: |\n    Detects potential network sniffing via use of network tools such as \"tshark\", \"windump\".\n    Network sniffing refers to using the network interface on a system to monitor or capture information sent over a wired or wireless connection.\n    An adversary may place a network interface into promiscuous mode to passively access data in transit over the network, or use span ports to capture a larger amount of data.\nreferences:\n    - https://github.com/redcanaryco/atomic-red-team/blob/f339e7da7d05f6057fdfcdd3742bfcf365fee2a9/atomics/T1040/T1040.md\nauthor: Timur Zinniatullin, oscd.community, Nasreddine Bencherchali (Nextron Systems)\ndate: 2019-10-21\nmodified: 2023-02-20\ntags:\n    - attack.credential-access\n    - attack.discovery\n    - attack.t1040\nlogsource:\n    category: process_creation\n    product: windows\ndetection:\n    selection_tshark:\n        Image|endswith: '\\tshark.exe'\n        CommandLine|contains: '-i'\n    selection_windump:\n        Image|endswith: '\\windump.exe'\n    condition: 1 of selection_*\nfalsepositives:\n    - Legitimate administration activity to troubleshoot network issues\nlevel: medium\n","validation":"yaml_parsed_not_backend_compiled_or_live_validated","techniques":[{"key":"enterprise/T1040","id":"T1040","name":"Network Sniffing","page":"techniques/enterprise/T1040/"}],"data_path":"data/detection-rules/ba1f7802-adc7-48b4-9ecb-81e227fddfd5.json","kind":"sigma"}