{"id":"340a090b-c4e9-412e-bb36-b4b16fe96f9b","title":"Renamed ZOHO Dctask64 Execution","description":"Detects a renamed \"dctask64.exe\" execution, a signed binary by ZOHO Corporation part of ManageEngine Endpoint Central.\nThis binary can be abused for DLL injection, arbitrary command and process execution.\n","author":"Florian Roth (Nextron Systems), Nasreddine Bencherchali (Nextron Systems)","status":"test","level":"high","date":"2020-01-28","modified":"2025-01-22","tags":["attack.privilege-escalation","attack.stealth","attack.t1036","attack.t1055.001","attack.t1202","attack.t1218"],"technique_ids":["T1036","T1055.001","T1202","T1218"],"logsource":{"category":"process_creation","product":"windows"},"falsepositives":["Unknown"],"references":["https://twitter.com/gN3mes1s/status/1222088214581825540","https://twitter.com/gN3mes1s/status/1222095963789111296","https://twitter.com/gN3mes1s/status/1222095371175911424"],"source_path":"rules/windows/process_creation/proc_creation_win_renamed_dctask64.yml","source_sha256":"68ac85d0eb535b82980b0c82945e46f95e875a0191068f1a3fbc146e4d2aca56","source_url":"https://github.com/anpa1200/sigma/blob/b249e9683190cffdcaf188ccbfb90bf4759844e1/rules/windows/process_creation/proc_creation_win_renamed_dctask64.yml","license":"Detection Rule License 1.1","license_url":"https://github.com/SigmaHQ/Detection-Rule-License/blob/main/LICENSE.Detection.Rules.md","yaml":"title: Renamed ZOHO Dctask64 Execution\nid: 340a090b-c4e9-412e-bb36-b4b16fe96f9b\nstatus: test\ndescription: |\n    Detects a renamed \"dctask64.exe\" execution, a signed binary by ZOHO Corporation part of ManageEngine Endpoint Central.\n    This binary can be abused for DLL injection, arbitrary command and process execution.\nreferences:\n    - https://twitter.com/gN3mes1s/status/1222088214581825540\n    - https://twitter.com/gN3mes1s/status/1222095963789111296\n    - https://twitter.com/gN3mes1s/status/1222095371175911424\nauthor: Florian Roth (Nextron Systems), Nasreddine Bencherchali (Nextron Systems)\ndate: 2020-01-28\nmodified: 2025-01-22\ntags:\n    - attack.privilege-escalation\n    - attack.stealth\n    - attack.t1036\n    - attack.t1055.001\n    - attack.t1202\n    - attack.t1218\nlogsource:\n    category: process_creation\n    product: windows\ndetection:\n    selection:\n        Hashes|contains:\n            - 'IMPHASH=6834B1B94E49701D77CCB3C0895E1AFD'\n            - 'IMPHASH=1BB6F93B129F398C7C4A76BB97450BBA'\n            - 'IMPHASH=FAA2AC19875FADE461C8D89DCF2710A3'\n            - 'IMPHASH=F1039CED4B91572AB7847D26032E6BBF'\n    filter_main_legit_name:\n        Image|endswith: '\\dctask64.exe'\n    condition: selection and not 1 of filter_main_*\nfalsepositives:\n    - Unknown\nlevel: high\n","validation":"yaml_parsed_not_backend_compiled_or_live_validated","techniques":[{"key":"enterprise/T1036","id":"T1036","name":"Masquerading","page":"techniques/enterprise/T1036/"},{"key":"enterprise/T1055.001","id":"T1055.001","name":"Dynamic-link Library Injection","page":"techniques/enterprise/T1055.001/"},{"key":"enterprise/T1202","id":"T1202","name":"Indirect Command Execution","page":"techniques/enterprise/T1202/"},{"key":"enterprise/T1218","id":"T1218","name":"System Binary Proxy Execution","page":"techniques/enterprise/T1218/"}],"data_path":"data/detection-rules/340a090b-c4e9-412e-bb36-b4b16fe96f9b.json","kind":"sigma"}