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vfpexeNcV500WangJianGuo

yara LOW Yara-Rules
community
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: 2026-08-30T23:00:00Z · Confidence: medium

Hunt Hypothesis

This detection identifies potential malicious or anomalous executable activity matching the specific signature of “vfpexeNcV500WangJianGuo,” which may indicate a targeted deployment of custom tools or unknown binaries within the environment. Although currently flagged with low severity, proactively hunting for this indicator in Azure Sentinel allows the SOC team to validate its legitimacy against known good baselines and prevent potential lateral movement by undetected adversaries before they escalate into higher-severity incidents.

YARA Rule

rule vfpexeNcV500WangJianGuo
{
      meta:
		author="malware-lu"
strings:
		$a0 = { 60 E8 00 00 00 00 5D [12] 50 64 FF 35 00 00 00 00 64 89 25 00 00 00 00 CC }

condition:
		$a0 at pe.entry_point
}

Deployment Notes

This YARA rule can be deployed in the following contexts:

This rule contains 1 string patterns in its detection logic.

False Positive Guidance

Here are 4 specific false positive scenarios for the vfpexeNcV500WangJianGuo detection rule, including recommended filters and exclusions:

Original source: https://github.com/Yara-Rules/rules/blob/main/packers/packer.yar