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YARA · Signature Base (Florian Roth / Nextron)

SIGNATURE_BASE_APT_Equation_Group_Op_Triangulation_Triangledb_Implant_Jun23_1

Detects TriangleDB implant found being used in Operation Triangulation on iOS devices (maybe also used on macOS systems)

APT / threat actorSignature Base (Florian Roth / Nextron)Detection Rule License 1.1Compiles with YARA-X
Author
Florian Roth
Date
2023-06-21
Modified
2023-12-05
Score / Quality
80 / 85

What this rule detects

Detects TriangleDB implant found being used in Operation Triangulation on iOS devices (maybe also used on macOS systems)

It defines 4 patterns (4 text, 0 hex, 0 regex).

Summary generated from the rule's metadata and condition.

Rule source

Download .yar
apt-equation-group-op-triangulation-triangledb-implant-jun23-1.yarDetection Rule License 1.1
rule SIGNATURE_BASE_APT_Equation_Group_Op_Triangulation_Triangledb_Implant_Jun23_1 : FILE
{
	meta:
		description = "Detects TriangleDB implant found being used in Operation Triangulation on iOS devices (maybe also used on macOS systems)"
		author = "Florian Roth"
		id = "d81a5103-41c8-5dba-a560-8fb5514f6c0a"
		date = "2023-06-21"
		modified = "2023-12-05"
		reference = "https://securelist.com/triangledb-triangulation-implant/110050/"
		source_url = "https://github.com/Neo23x0/signature-base/blob/94a1c48d7ab499879287ff611dfe7f9c56376030/yara/apt_eqgrp_triangulation_jun23.yar#L2-L18"
		license_url = "https://github.com/Neo23x0/signature-base/blob/94a1c48d7ab499879287ff611dfe7f9c56376030/LICENSE"
		logic_hash = "486b19ddb8b182dbba882359f7eb416735e76f9cda5aea1b290fb5c6b44960c5"
		score = 80
		quality = 85
		tags = "FILE"

	strings:
		$s1 = "unmungeHexString" ascii fullword
		$s2 = "CRPwrInfo" ascii fullword
		$s3 = "CRConfig" ascii fullword
		$s4 = "CRXConfigureDBServer" ascii fullword

	condition:
		( uint16( 0 ) == 0xfacf and filesize < 30MB and $s1 and 2 of them ) or all of them
}

Strings (4 patterns)

IdentifierTypeValueModifiers
$s1text"unmungeHexString"ascii fullword
$s2text"CRPwrInfo"ascii fullword
$s3text"CRConfig"ascii fullword
$s4text"CRXConfigureDBServer"ascii fullword

Condition

( uint16( 0 ) == 0xfacf and filesize < 30MB and $s1 and 2 of them ) or all of them

In plain words (Heuristic)

  • The file must be smaller than 30MB (a cheap guard that skips large files).
  • All patterns in the rule must match.
  • At least 2 patterns in the rule must match.
  • Pattern $s1 must be present.

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References

Licence & attribution

Author: Florian Roth

Source repository: Signature Base (Florian Roth / Nextron) @ 94a1c48d7a

Licence: Detection Rule License 1.1 (repository licence)

Original rule

Mirrored via YARA Forge 20260927, which prefixes rule names with the source and adds normalised meta fields.

Rule id: d81a5103-41c8-5dba-a560-8fb5514f6c0a

Tags:FILE

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