{"id":"214641c2-c579-4ecb-8427-0cf19df6842e","title":"Remote File Download Via Desktopimgdownldr Utility","description":"Detects the desktopimgdownldr utility being used to download a remote file. An adversary may use desktopimgdownldr to download arbitrary files as an alternative to certutil.","author":"Tim Rauch, Elastic (idea)","status":"test","level":"medium","date":"2022-09-27","modified":"","tags":["attack.command-and-control","attack.t1105"],"technique_ids":["T1105"],"logsource":{"category":"process_creation","product":"windows"},"falsepositives":["Unknown"],"references":["https://www.elastic.co/guide/en/security/current/remote-file-download-via-desktopimgdownldr-utility.html"],"source_path":"rules/windows/process_creation/proc_creation_win_desktopimgdownldr_remote_file_download.yml","source_sha256":"e94c5d4fd053ac15551bbf14aae878c0be5f1c96a422b114e68164f0c87df824","source_url":"https://github.com/anpa1200/sigma/blob/b249e9683190cffdcaf188ccbfb90bf4759844e1/rules/windows/process_creation/proc_creation_win_desktopimgdownldr_remote_file_download.yml","license":"Detection Rule License 1.1","license_url":"https://github.com/SigmaHQ/Detection-Rule-License/blob/main/LICENSE.Detection.Rules.md","yaml":"title: Remote File Download Via Desktopimgdownldr Utility\nid: 214641c2-c579-4ecb-8427-0cf19df6842e\nstatus: test\ndescription: Detects the desktopimgdownldr utility being used to download a remote file. An adversary may use desktopimgdownldr to download arbitrary files as an alternative to certutil.\nreferences:\n    - https://www.elastic.co/guide/en/security/current/remote-file-download-via-desktopimgdownldr-utility.html\nauthor: Tim Rauch, Elastic (idea)\ndate: 2022-09-27\ntags:\n    - attack.command-and-control\n    - attack.t1105\nlogsource:\n    category: process_creation\n    product: windows\ndetection:\n    selection:\n        Image|endswith: '\\desktopimgdownldr.exe'\n        ParentImage|endswith: '\\desktopimgdownldr.exe'\n        CommandLine|contains: '/lockscreenurl:http'\n    condition: selection\nfalsepositives:\n    - Unknown\nlevel: medium\n","validation":"yaml_parsed_not_backend_compiled_or_live_validated","techniques":[{"key":"enterprise/T1105","id":"T1105","name":"Ingress Tool Transfer","page":"techniques/enterprise/T1105/"}],"data_path":"data/detection-rules/214641c2-c579-4ecb-8427-0cf19df6842e.json","kind":"sigma"}