Query: detect Detects LOLBINs executing from an abnormal or uncommon drive such as a mounted ISO. in logs
Matching passage: Sigma rule: Detects LOLBINs executing from an abnormal or uncommon drive such as a mounted ISO.. Logsource: windows / process_creation. Rule: title: LOLBIN Execution From Abnormal Drive id: d4ca7c59-e9e4-42d8-bf57-91a776efcb87 related: - id: 5b80cf53-3a46-4adc-960b-05ec19348d74 type: similar status: test description: Detects LOLBINs executing from an abnormal or uncommon drive such as a mounted ISO. references: - https://thedfirreport.com/2021/12/13/diavol-ransomware/ - https://www.scythe.io/library/threat-emulation-qakbot - https://sec-consult.com/blog/detail/bumblebee-hunting-with-a-velociraptor/ author: Christopher Peacock '@securepeacock', SCYTHE '@scythe_io', Angelo Violetti - SEC Consult '@angelo_violetti', Aaron Herman date: 2022-01-25 modified: 2023-08-29 tags: - attack.stealth logsource: category: process_creation product: windows detection: selection: - Image|endswith: - \calc.exe - \certutil.exe - \cmstp.exe - \cscript.exe - \installutil.exe - \mshta.exe - \regsvr32.exe - \rundll32.exe - \wscript.exe - OriginalFileName: - CALC.EXE - CertUtil.exe - CMSTP.EXE - cscript.exe - installutil.exe - MSHTA.EXE - REGSVR32.EXE - RUNDLL32.EXE - wscript.exe filter_main_currentdirectory: CurrentDirectory|contains: C:\ filter_main_empty: CurrentDirectory: '' filter_main_null: CurrentDirectory: null condition: selection and not 1 of filter_main_* falsepositives: - Rare false positives could occur on servers with multiple drives. level: medium
Near-miss passage: Sigma rule: Detects the use of the Windows Update Client binary (wuauclt.exe) for proxy execution.. Logsource: windows / process_creation. Rule: title: Proxy Execution Via Wuauclt.EXE id: af77cf95-c469-471c-b6a0-946c685c4798 related: - id: ba1bb0cb-73da-42de-ad3a-de10c643a5d0 type: obsolete - id: d7825193-b70a-48a4-b992-8b5b3015cc11 type: obsolete status: test description: Detects the use of the Windows Update Client binary (wuauclt.exe) for proxy execution. references: - https://dtm.uk/wuauclt/ - https://blog.malwarebytes.com/threat-intelligence/2022/01/north-koreas-lazarus-apt-leverages-windows-update-client-github-in-latest-campaign/ author: Roberto Rodriguez (Cyb3rWard0g), OTR (Open Threat Research), Florian Roth (Nextron Systems), Sreeman, FPT.EagleEye Team date: 2020-10-12 modified: 2023-11-11 tags: - attack.stealth - attack.t1218 - attack.execution logsource: category: process_creation product: windows detection: selection_img: - Image|endswith: \wuauclt.exe - OriginalFileName: wuauclt.exe selection_cli: CommandLine|contains|all: - UpdateDeploymentProvider - RunHandlerComServer filter_main_generic: CommandLine|contains: ' /UpdateDeploymentProvider UpdateDeploymentProvider.dll ' filter_main_wuaueng: CommandLine|contains: ' wuaueng.dll ' filter_main_uus: CommandLine|contains: - :\Windows\UUS\Packages\Preview\amd64\updatedeploy.dll /ClassId - :\Windows\UUS\amd64\UpdateDeploy.dll /ClassId filter_main_winsxs: CommandLine|contains|all: - :\Windows\WinSxS\ - '\UpdateDeploy.dll /ClassId ' condition: all of selection_* and not 1 of filter_main_* falsepositives: - Unknown level: high