← Back to SOC feed Coverage →

Iron Tiger Malware - NBDDos Gh0stvariant Dropper

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: 2026-05-27T11:00:00Z · Confidence: medium

Hunt Hypothesis

The hypothesis is that the detection identifies potential Iron Tiger Malware activity involving a NBDDos Gh0stvariant dropper, which may indicate initial compromise or lateral movement within a network. SOC teams should proactively hunt for this behavior in Azure Sentinel to identify and mitigate early-stage malware infections before they escalate to data exfiltration or system disruption.

YARA Rule

rule IronTiger_NBDDos_Gh0stvariant_dropper
{
   
    meta:
        author = "Cyber Safety Solutions, Trend Micro"
        description = "Iron Tiger Malware - NBDDos Gh0stvariant Dropper"
        reference = "http://goo.gl/T5fSJC"
   
    strings:
        $str1 = "This service can't be stoped." nocase wide ascii
        $str2 = "Provides support for media palyer" nocase wide ascii
        $str4 = "CreaetProcess Error" nocase wide ascii
        $bla1 = "Kill You" nocase wide ascii
        $bla2 = "%4.2f GB" nocase wide ascii
   
    condition:
        uint16(0) == 0x5a4d and ((any of ($str*)) or (all of ($bla*)))
}

Deployment Notes

This YARA rule can be deployed in the following contexts:

This rule contains 5 string patterns in its detection logic.

References

False Positive Guidance

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