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DITEKSHEN_INDICATOR_RMM_Fleetdeck_Agent

Detects FleetDeck Agent. 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 Agent. Review RMM Inventory

Targets: Windows PE.

It defines 10 patterns (10 text, 0 hex, 0 regex).

Summary generated from the rule's metadata and condition.

Rule source

Download .yar
indicator-rmm-fleetdeck-agent.yarBSD 2-Clause License
rule DITEKSHEN_INDICATOR_RMM_Fleetdeck_Agent : FILE
{
	meta:
		description = "Detects FleetDeck Agent. Review RMM Inventory"
		author = "ditekSHen"
		id = "342a196c-1c5c-5951-85e4-d288311b4980"
		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#L101-L123"
		license_url = "https://github.com/ditekshen/detection/blob/e76c93dcdedff04076380ffc60ea54e45b313635/LICENSE.txt"
		logic_hash = "121e59ea0088c519b618e740b57c560d60cced4a48c9d468e6bf1ab22fa8c8ff"
		score = 75
		quality = 75
		tags = "FILE"
		clamav1 = "INDICATOR.Win.RMM.FleetDeckAgent"

	strings:
		$s1 = "fleetdeck.io/" ascii
		$s2 = "load FleetDeck agent" ascii
		$s3 = ".dev1.fleetdeck.io" ascii
		$s4 = "remoteDesktopSessionMutex" ascii
		$s5 = "main.remoteDesktopWatchdog" fullword ascii
		$s6 = "main.virtualTerminalWatchdog" fullword ascii
		$s7 = "main.meetRemoteDesktop" fullword ascii
		$s8 = "repo.senri.se/prototype3/" ascii
		$s9 = "main.svcIpcClient" fullword ascii
		$s10 = "main.hookMqttLogging" fullword ascii

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

Strings (10 patterns)

IdentifierTypeValueModifiers
$s1text"fleetdeck.io/"ascii
$s2text"load FleetDeck agent"ascii
$s3text".dev1.fleetdeck.io"ascii
$s4text"remoteDesktopSessionMutex"ascii
$s5text"main.remoteDesktopWatchdog"fullword ascii
$s6text"main.virtualTerminalWatchdog"fullword ascii
$s7text"main.meetRemoteDesktop"fullword ascii
$s8text"repo.senri.se/prototype3/"ascii
$s9text"main.svcIpcClient"fullword ascii
$s10text"main.hookMqttLogging"fullword 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: 342a196c-1c5c-5951-85e4-d288311b4980

Metadata

clamav1INDICATOR.Win.RMM.FleetDeckAgent

Tags:FILE

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