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YARA · ditekSHen detection

DITEKSHEN_MALWARE_Win_Sunshuttle

Detects SunShuttle / GoldMax

MalwareSunshuttleditekSHen detectionBSD 2-Clause LicenseCompiles with YARA-X
Author
ditekSHen
Date
2020-11-06
Modified
2024-11-01
Score / Quality
75 / 75

What this rule detects

Detects SunShuttle / GoldMax

Associated malware family: Sunshuttle.

Targets: Windows PE.

It defines 15 patterns (15 text, 0 hex, 0 regex).

Summary generated from the rule's metadata and condition.

Rule source

malware-win-sunshuttle.yarBSD 2-Clause License
rule DITEKSHEN_MALWARE_Win_Sunshuttle : FILE
{
	meta:
		description = "Detects SunShuttle / GoldMax"
		author = "ditekSHen"
		id = "1618d0bc-6e72-5f1e-81e7-56611bfd7f8b"
		date = "2020-11-06"
		modified = "2024-11-01"
		reference = "https://github.com/ditekshen/detection"
		source_url = "https://github.com/ditekshen/detection/blob/e76c93dcdedff04076380ffc60ea54e45b313635/yara/malware.yar#L4995-L5017"
		license_url = "https://github.com/ditekshen/detection/blob/e76c93dcdedff04076380ffc60ea54e45b313635/LICENSE.txt"
		logic_hash = "fa8feb069e73aa0a7fcb4daecc1fdf8edeff65e5aeefef161626647fe989e5c0"
		score = 75
		quality = 75
		tags = "FILE"

	strings:
		$s1 = "main.beaconing" fullword ascii
		$s2 = "main.clean_file" fullword ascii
		$s3 = "main.decrypt" fullword ascii
		$s4 = "main.define_internal_settings" fullword ascii
		$s5 = "main.delete_empty" fullword ascii
		$s6 = "main.encrypt" fullword ascii
		$s7 = "main.false_requesting" fullword ascii
		$s8 = "main.removeBase64Padding" fullword ascii
		$s9 = "main.resolve_command" fullword ascii
		$s10 = "main.retrieve_session_key" fullword ascii
		$s11 = "main.save_internal_settings" fullword ascii
		$s12 = "main.send_command_result" fullword ascii
		$s13 = "main.send_file_part" fullword ascii
		$s14 = "main.wget_file" fullword ascii
		$s15 = "main.write_file" fullword ascii

	condition:
		uint16( 0 ) == 0x5a4d and 5 of them
}

Strings (15 patterns)

IdentifierTypeValueModifiers
$s1text"main.beaconing"fullword ascii
$s2text"main.clean_file"fullword ascii
$s3text"main.decrypt"fullword ascii
$s4text"main.define_internal_settings"fullword ascii
$s5text"main.delete_empty"fullword ascii
$s6text"main.encrypt"fullword ascii
$s7text"main.false_requesting"fullword ascii
$s8text"main.removeBase64Padding"fullword ascii
$s9text"main.resolve_command"fullword ascii
$s10text"main.retrieve_session_key"fullword ascii
$s11text"main.save_internal_settings"fullword ascii
$s12text"main.send_command_result"fullword ascii
$s13text"main.send_file_part"fullword ascii
$s14text"main.wget_file"fullword ascii
$s15text"main.write_file"fullword ascii

Condition

uint16( 0 ) == 0x5a4d and 5 of them

In plain words (Heuristic)

  • The file must start with “MZ” — a Windows executable (PE).
  • At least 5 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: 1618d0bc-6e72-5f1e-81e7-56611bfd7f8b

Tags:FILE