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Detects a specific config file used by malware in RUAG APT case

yara HIGH Yara-Rules
aptcommunity
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: 2026-06-05T11:00:00Z · Confidence: medium

Hunt Hypothesis

The presence of a specific configuration file associated with RUAG APT malware indicates potential adversary persistence and command-and-control communication. SOC teams should proactively hunt for this behavior in Azure Sentinel to identify and mitigate advanced persistent threats before they exfiltrate data or escalate within the network.

YARA Rule

rule RUAG_Bot_Config_File 
{

  meta:
    description = "Detects a specific config file used by malware in RUAG APT case"
    author = "Florian Roth"
    reference = "https://goo.gl/N5MEj0"
    score = 60
  
  strings:
    $s1 = "[CONFIG]" ascii
    $s2 = "name = " ascii
    $s3 = "exe = cmd.exe" ascii
  
  condition:
    $s1 at 0 and $s2 and $s3 and filesize < 160 
}

Deployment Notes

This YARA rule can be deployed in the following contexts:

This rule contains 3 string patterns in its detection logic.

References

False Positive Guidance

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