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Iron Panda Malware

yara LOW Yara-Rules
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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: 2026-05-27T23:00:00Z · Confidence: medium

Hunt Hypothesis

The Iron Panda Malware detection rule identifies potential adversary behavior involving suspicious file execution and network communication patterns commonly associated with malware activity. SOC teams should proactively hunt for this behavior in Azure Sentinel to detect and mitigate early-stage threats that may evade traditional detection methods.

YARA Rule

rule IronPanda_Malware3 
{

    meta:
        description = "Iron Panda Malware"
        author = "Florian Roth"
        reference = "https://goo.gl/E4qia9"
        date = "2015-09-16"
        hash = "5cd2af844e718570ae7ba9773a9075738c0b3b75c65909437c43201ce596a742"

    strings:
        $s0 = "PluginDeflater.exe" fullword wide
        $s1 = ".Deflated" fullword wide
        $s2 = "PluginDeflater" fullword ascii
        $s3 = "DeflateStream" fullword ascii /* Goodware String - occured 1 times */
        $s4 = "CompressionMode" fullword ascii /* Goodware String - occured 4 times */
        $s5 = "System.IO.Compression" fullword ascii /* Goodware String - occured 6 times */

    condition:
        uint16(0) == 0x5a4d and filesize < 10KB and all of them
}

Deployment Notes

This YARA rule can be deployed in the following contexts:

This rule contains 6 string patterns in its detection logic.

References

False Positive Guidance

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