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JDPack

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: 2026-09-10T11:00:00Z · Confidence: medium

Hunt Hypothesis

This rule identifies the presence of JDPack, a Java-based packer often used by adversaries to obfuscate malicious code and evade static analysis in Java applications. Proactively hunting for this indicator in Azure Sentinel helps SOC teams uncover hidden threats in Java workloads that may be leveraging packing techniques to bypass traditional signature-based detections.

YARA Rule

rule JDPack: Packer PEiD
{
      meta:
		author="malware-lu"
strings:
		$a0 = { 60 E8 [4] 5D 8B D5 81 ED [4] 2B 95 [4] 81 EA 06 [3] 89 95 [4] 83 BD 45 }

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

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