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EQGRP Toolset Firewall - Unique strings

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: 2026-05-23T11:00:00Z · Confidence: medium

Hunt Hypothesis

The detection identifies potential use of the EQGRP toolset by capturing unique string patterns associated with its firewall components, which may indicate initial compromise or lateral movement. SOC teams should proactively hunt for this behavior to detect early-stage adversarial activity and prevent further network infiltration in Azure Sentinel.

YARA Rule

rule EQGRP_Unique_Strings 
{

    meta:
        description = "EQGRP Toolset Firewall - Unique strings"
        author = "Florian Roth"
        reference = "Research"
        date = "2016-08-16"

    strings:
        $s1 = "/BananaGlee/ELIGIBLEBOMB" ascii
        $s2 = "Protocol must be either http or https (Ex: https://1.2.3.4:1234)"

    condition:
        1 of them
}

Deployment Notes

This YARA rule can be deployed in the following contexts:

This rule contains 2 string patterns in its detection logic.

References

False Positive Guidance

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