Query: Sigma YAML for windows / image_load
Matching passage: Sigma rule: Detects potential DLL side-loading of jli.dll. JLI.dll has been observed being side-loaded by Java processes by various. Logsource: windows / image_load. Rule: title: Potential JLI.dll Side-Loading id: 7a3b6d1f-4a2b-4f8c-9d7e-e9f8cbf21a35 status: experimental description: 'Detects potential DLL side-loading of jli.dll. JLI.dll has been observed being side-loaded by Java processes by various threat actors, including APT41, XWorm, and others in order to load malicious payloads in context of legitimate Java processes. ' references: - https://securelist.com/apt41-in-africa/116986/ - https://lab52.io/blog/snake-keylogger-in-geopolitical-affairs-abuse-of-trusted-java-utilities-in-cybercrime-operations/ - https://hijacklibs.net/entries/3rd_party/oracle/jli.html - https://www.proofpoint.com/us/blog/threat-insight/phish-china-aligned-espionage-actors-ramp-up-taiwan-semiconductor-targeting author: Swachchhanda Shrawan Poudel (Nextron Systems) date: 2025-07-25 modified: 2025-10-06 tags: - attack.persistence - attack.privilege-escalation - attack.execution - attack.stealth - attack.t1574.001 logsource: category: image_load product: windows detection: selection: ImageLoaded|endswith: \jli.dll filter_main_legitimate_install_paths: ImageLoaded|startswith: - C:\Program Files\ - C:\Program Files (x86)\ Description: OpenJDK Platform binary OriginalFileName: jli.dll Product|startswith: OpenJDK Platform Signed: 'true' filter_optional_eclipse: ImageLoaded|startswith: C:\eclipse\plugins\ condition: selection and not 1 of filter_main_* and not 1 of filter_optional_* falsepositives: - Unknown level: high
Near-miss passage: Sigma rule: Detects an appx package that was added to the pipeline of the "to be processed" packages that is located in uncommon loc. Logsource: windows / appxdeployment-server. Rule: title: AppX Located in Uncommon Directory Added to Deployment Pipeline id: c977cb50-3dff-4a9f-b873-9290f56132f1 status: test description: 'Detects an appx package that was added to the pipeline of the "to be processed" packages that is located in uncommon locations. ' references: - Internal Research - https://www.sentinelone.com/labs/inside-malicious-windows-apps-for-malware-deployment/ - https://learn.microsoft.com/en-us/windows/win32/appxpkg/troubleshooting - https://news.sophos.com/en-us/2021/11/11/bazarloader-call-me-back-attack-abuses-windows-10-apps-mechanism/ author: Nasreddine Bencherchali (Nextron Systems) date: 2023-01-11 modified: 2025-12-03 tags: - attack.stealth logsource: product: windows service: appxdeployment-server detection: selection: EventID: 854 filter_main_generic: Path|contains: - :/Program%20Files - :/Windows/System32/ - :\Program Files (x86)\ - :\Program Files\ - :\Windows\ImmersiveControlPanel\ - :\Windows\PrintDialog\ - :\Windows\SystemApps\ - AppData/Local/Temp/WinGet/Microsoft.Winget.Source - x-windowsupdate:// filter_main_specific: Path|contains: - https://installer.teams.static.microsoft/ - https://res.cdn.office.net - https://statics.teams.cdn.live.net/ - https://statics.teams.cdn.office.net/ - microsoft.com filter_optional_onedrive: Path|contains: AppData\Local\Microsoft\OneDrive\ filter_optional_winget: Path|contains: - AppData/Local/Temp/WinGet/Microsoft.Winget.Source - AppData\Local\Temp\WinGet\Microsoft.Winget.Source filter_optional_x_windowsupdate: Path|contains: x-windowsupdate:// condition: selection and not 1 of filter_main_* and not 1 of filter_optional_* falsepositives: - Unknown level: medium