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Auto-generated rule - file BypassUacDll.aps

yara LOW Yara-Rules
backdoorcommunityevasion
This rule was pulled from an open-source repository and enriched with AI. Validate in a test environment before deploying to production.
View original rule at Yara-Rules →
Retrieved: 2026-07-28T23:00:00Z · Confidence: medium

Hunt Hypothesis

This detection identifies adversaries attempting to bypass User Account Control (UAC) protections by loading specific DLLs, a common tactic used to elevate privileges and execute malicious code without triggering standard UAC prompts. SOC teams should proactively hunt for this behavior in Azure Sentinel because successful UAC bypasses often serve as a critical precursor to privilege escalation attacks that could compromise the integrity of endpoint security controls.

YARA Rule

rule BypassUacDll_6 {
	meta:
		description = "Auto-generated rule - file BypassUacDll.aps"
		author = "yarGen Yara Rule Generator"
		hash = "58d7b24b6870cb7f1ec4807d2f77dd984077e531"
	strings:
		$s3 = "BypassUacDLL.dll" fullword wide
		$s4 = "AFX_IDP_COMMAND_FAILURE" fullword ascii
	condition:
		all of them
}

Deployment Notes

This YARA rule can be deployed in the following contexts:

This rule contains 2 string patterns in its detection logic.

False Positive Guidance

Here are 5 specific false positive scenarios for the BypassUacDll detection rule, including suggested filters and exclusions:

Original source: https://github.com/Yara-Rules/rules/blob/main/malware/TOOLKIT_THOR_HackTools.yar