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DITEKSHEN_INDICATOR_RMM_Fleetdeck_Commander_SVC

Detects FleetDeck Commander SVC. Review RMM Inventory

Suspicious / huntingditekSHen detectionBSD 2-Clause LicenseCompiles with YARA-X
Author
ditekSHen
Date
2023-08-22
Modified
2024-10-04
Score / Quality
75 / 75

What this rule detects

Detects FleetDeck Commander SVC. Review RMM Inventory

Targets: Windows PE.

It defines 5 patterns (5 text, 0 hex, 0 regex).

Summary generated from the rule's metadata and condition.

Rule source

Download .yar
indicator-rmm-fleetdeck-commander-svc.yarBSD 2-Clause License
rule DITEKSHEN_INDICATOR_RMM_Fleetdeck_Commander_SVC : FILE
{
	meta:
		description = "Detects FleetDeck Commander SVC. Review RMM Inventory"
		author = "ditekSHen"
		id = "c03b61b4-36d0-5d38-9af8-e78b9930231f"
		date = "2023-08-22"
		modified = "2024-10-04"
		reference = "https://www.cisa.gov/sites/default/files/2023-08/JCDC_RMM_Cyber_Defense_Plan_TLP_CLEAR_508c_1.pdf"
		source_url = "https://github.com/ditekshen/detection/blob/e76c93dcdedff04076380ffc60ea54e45b313635/yara/indicator_rmm.yar#L145-L162"
		license_url = "https://github.com/ditekshen/detection/blob/e76c93dcdedff04076380ffc60ea54e45b313635/LICENSE.txt"
		logic_hash = "20bd69df3d058c24f83af312671cf249a3f26f54ef2e60f6b5b48a5bdb21b68b"
		score = 75
		quality = 75
		tags = "FILE"
		clamav1 = "INDICATOR.Win.RMM.FleetDeckCommander-SVC"

	strings:
		$s1 = "fleetdeckfork/execfuncargs(" ascii
		$s2 = "REG ADD HKEY_CLASSES_ROOT\\%s /V \"URL Protocol\" /T REG_SZ /F" ascii
		$s3 = "proceed: *.fleetdeck.io" ascii
		$s4 = "fleetdeck.io/prototype3/commander_svc" ascii
		$s5 = "commanderupdate.fleetdeck.io" ascii

	condition:
		uint16( 0 ) == 0x5a4d and 4 of them
}

Strings (5 patterns)

IdentifierTypeValueModifiers
$s1text"fleetdeckfork/execfuncargs("ascii
$s2text"REG ADD HKEY_CLASSES_ROOT\\%s /V \"URL Protocol\" /T REG_SZ /F"ascii
$s3text"proceed: *.fleetdeck.io"ascii
$s4text"fleetdeck.io/prototype3/commander_svc"ascii
$s5text"commanderupdate.fleetdeck.io"ascii

Condition

uint16( 0 ) == 0x5a4d and 4 of them

In plain words (Heuristic)

  • The file must start with “MZ” — a Windows executable (PE).
  • At least 4 patterns in the rule must match.

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References

Licence & attribution

Author: ditekSHen

Source repository: ditekSHen detection @ e76c93dcde

Licence: BSD 2-Clause License (repository licence)

Copyright notice: Copyright 2021 by ditekSHen (https://github.com/ditekshen/detection).

Original rule

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

Rule id: c03b61b4-36d0-5d38-9af8-e78b9930231f

Metadata

clamav1INDICATOR.Win.RMM.FleetDeckCommander-SVC

Tags:FILE

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