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DITEKSHEN_INDICATOR_RMM_Splashtopstreamer

Detects Splashtop Streamer. 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 Splashtop Streamer. Review RMM Inventory

Targets: Windows PE.

It defines 6 patterns (6 text, 0 hex, 0 regex).

Summary generated from the rule's metadata and condition.

Rule source

Download .yar
indicator-rmm-splashtopstreamer.yarBSD 2-Clause License
rule DITEKSHEN_INDICATOR_RMM_Splashtopstreamer : FILE
{
	meta:
		description = "Detects Splashtop Streamer. Review RMM Inventory"
		author = "ditekSHen"
		id = "317f2be4-983f-5528-b629-75a13de7b411"
		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#L385-L403"
		license_url = "https://github.com/ditekshen/detection/blob/e76c93dcdedff04076380ffc60ea54e45b313635/LICENSE.txt"
		logic_hash = "67181cd6ae071074c6bf35f44963c11c9ee9b7df242027c15b1e165d108f7b98"
		score = 75
		quality = 75
		tags = "FILE"
		clamav1 = "INDICATOR.Win.RMM.SplashtopStreamer"

	strings:
		$s1 = "\\slave\\workspace\\GIT_WIN_SRS_Formal\\Source\\irisserver\\" ascii
		$s2 = ".api.splashtop.com" wide
		$s3 = "Software\\Splashtop Inc.\\Splashtop" wide
		$s4 = "restarted the streamer.%nApp version: %1" wide
		$s5 = "Splashtop-Splashtop Streamer-" wide
		$s6 = "[RemoveStreamer] Send msg 2 cloud(%d:%d:%d)" wide

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

Strings (6 patterns)

IdentifierTypeValueModifiers
$s1text"\\slave\\workspace\\GIT_WIN_SRS_Formal\\Source\\irisserver\\"ascii
$s2text".api.splashtop.com"wide
$s3text"Software\\Splashtop Inc.\\Splashtop"wide
$s4text"restarted the streamer.%nApp version: %1"wide
$s5text"Splashtop-Splashtop Streamer-"wide
$s6text"[RemoveStreamer] Send msg 2 cloud(%d:%d:%d)"wide

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: 317f2be4-983f-5528-b629-75a13de7b411

Metadata

clamav1INDICATOR.Win.RMM.SplashtopStreamer

Tags:FILE

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