Windows: Flag VMwareXferlogs.exe loading glib-2.0.dll from non-default path
Alerts on VMwareXferlogs.exe loading glib-2.0.dll from outside the default VMware directory.
FreeUnreviewedSigmahighv1
windows-flag-vmwarexferlogs-exe-loading-glib-2-0-dll-from-non-default-path-9313dc13
title: "Windows: Flag VMwareXferlogs.exe loading glib-2.0.dll from non-default path"
id: 6a772100-64a2-4f2f-82d3-683c29580bfc
status: test
description: This rule identifies when the VMware Xfer logs utility (VMwareXferlogs.exe) loads a specific DLL (glib-2.0.dll) from a directory outside the expected default VMware installation path. Adversaries may abuse DLL search/path behavior by placing a malicious library in a non-standard location so it is loaded by a legitimate binary. The detection relies on Windows image load telemetry that records the calling image and the loaded DLL path.
references:
- https://www.sentinelone.com/labs/lockbit-ransomware-side-loads-cobalt-strike-beacon-with-legitimate-vmware-utility/
- https://github.com/SigmaHQ/sigma/blob/master/rules/windows/image_load/image_load_side_load_vmware_xfer.yml
author: Nasreddine Bencherchali (Nextron Systems), Huntrule Team
date: 2022-08-02
modified: 2023-02-17
tags:
- attack.privilege-escalation
- attack.persistence
- attack.execution
- attack.stealth
- attack.t1574.001
logsource:
product: windows
category: image_load
detection:
selection:
Image|endswith: \VMwareXferlogs.exe
ImageLoaded|endswith: \glib-2.0.dll
filter:
ImageLoaded|startswith: C:\Program Files\VMware\
condition: selection and not filter
falsepositives:
- Unlikely
level: high
license: DRL-1.1
related:
- id: 9313dc13-d04c-46d8-af4a-a930cc55d93b
type: derived
What it detects
This rule identifies when the VMware Xfer logs utility (VMwareXferlogs.exe) loads a specific DLL (glib-2.0.dll) from a directory outside the expected default VMware installation path. Adversaries may abuse DLL search/path behavior by placing a malicious library in a non-standard location so it is loaded by a legitimate binary. The detection relies on Windows image load telemetry that records the calling image and the loaded DLL path.
Known false positives
- Unlikely
Detection content is published as a reviewed draft. Tune thresholds and exclusions against your own telemetry before enabling this rule for alerting.