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MediumElastic detection rulesElastic

ESXi Attempt to Force Install a VMware VIB Package

Detects an attempt to install a VMware VIB with `--force`. A VIB is how ESXi adds drivers and host software, and signature checks normally block an unsigned package. `--force` skips that validation, so an untrusted…

Description

Detects an attempt to install a VMware VIB with `--force`. A VIB is how ESXi adds drivers and host software, and signature checks normally block an unsigned package. `--force` skips that validation, so an untrusted package can be written onto the hypervisor and affect every virtual machine it runs.

Detection logic

Its licence does not clear it for publishing here

Sunturai publishes a detection's own text where the licence it arrived under has been reviewed and permits it, and Elastic License 2.0 has not. The query as its source wrote it, its canonical form and the hash that pins this revision are in the workspace record.

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Detection requirements

Platform
LinuxmacOSWindows

The rule states no platform. This is derived from the ATT&CK technique it maps to.

Log source category
event_index

Known benign triggers

  • Administrators sometimes force a vendor VIB during a documented recovery or upgrade when the acceptance level would otherwise reject it. Confirm the VIB name against the change ticket.

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