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MALPEDIA_Win_Moonwind_Auto

autogenerated rule brought to you by yara-signator

MalwareMoonwindMalpedia signator rulesCreative Commons Attribution-ShareAlike 4.0Compiles with YARA-X
Author
Felix Bilstein - yara-signator at cocacoding dot com
Date
2026-05-04
Modified
2026-05-18
Score / Quality
75 / 75

What this rule detects

autogenerated rule brought to you by yara-signator

Associated malware family: Moonwind.

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

Summary generated from the rule's metadata and condition.

Rule source

win-moonwind-auto.yarCreative Commons Attribution-ShareAlike 4.0
rule MALPEDIA_Win_Moonwind_Auto : FILE
{
	meta:
		description = "autogenerated rule brought to you by yara-signator"
		author = "Felix Bilstein - yara-signator at cocacoding dot com"
		id = "1041560a-82e8-5446-a4d2-998ea5c14e36"
		date = "2026-05-04"
		modified = "2026-05-18"
		reference = "https://malpedia.caad.fkie.fraunhofer.de/details/win.moonwind"
		source_url = "https://github.com/malpedia/signator-rules//blob/c901f97b7df03e41917da74c2a84b04c227316c2/rules/win.moonwind_auto.yar#L1-L132"
		license_url = "N/A"
		logic_hash = "c7d796397da6e928fc158bf0b98bdc7e0c4b36ff553dd6b2d6f959216357cd38"
		score = 75
		quality = 75
		tags = "FILE"
		version = "1"
		tool = "yara-signator v0.6.0"
		signator_config = "callsandjumps;datarefs;binvalue"
		malpedia_rule_date = "20260422"
		malpedia_hash = "a182e35da64e6d71cb55f125c4d4225196523f14"
		malpedia_version = "20260504"
		malpedia_license = "CC BY-SA 4.0"
		malpedia_sharing = "TLP:WHITE"

	strings:
		$sequence_0 = { 7409 53 e8???????? 83c404 837dcc00 0f84250b0000 }
		$sequence_1 = { 8b5b38 83c304 895dbc 8b5d08 8b1b 83c308 895db8 }
		$sequence_2 = { 52 b805000080 0fa2 8945c8 895dcc 894dd0 }
		$sequence_3 = { 6802000000 bb60020000 e8???????? 83c41c e9???????? 6804000080 6a00 }
		$sequence_4 = { 3965ec 740d 6806000000 e8???????? 83c404 8b5d10 668903 }
		$sequence_5 = { 8bc8 53 e8???????? 8b8424e4010000 83f804 7509 c7450405000000 }
		$sequence_6 = { 8bf8 83c708 8b45d0 c1e002 03f8 8b45d8 57 }
		$sequence_7 = { c3 55 8bec 81ec34000000 6808000000 e8???????? 83c404 }
		$sequence_8 = { 5e ab b909000000 f3a5 ad 56 57 }
		$sequence_9 = { 33c0 bf???????? 8d3452 f3ab c1e604 aa 8d9ed8444700 }

	condition:
		7 of them and filesize < 1417216
}

Strings (10 patterns)

IdentifierTypeValueModifiers
$sequence_0hex{ 7409 53 e8???????? 83c404 837dcc00 0f84250b0000 }
$sequence_1hex{ 8b5b38 83c304 895dbc 8b5d08 8b1b 83c308 895db8 }
$sequence_2hex{ 52 b805000080 0fa2 8945c8 895dcc 894dd0 }
$sequence_3hex{ 6802000000 bb60020000 e8???????? 83c41c e9???????? 6804000080 6a00 }
$sequence_4hex{ 3965ec 740d 6806000000 e8???????? 83c404 8b5d10 668903 }
$sequence_5hex{ 8bc8 53 e8???????? 8b8424e4010000 83f804 7509 c7450405000000 }
$sequence_6hex{ 8bf8 83c708 8b45d0 c1e002 03f8 8b45d8 57 }
$sequence_7hex{ c3 55 8bec 81ec34000000 6808000000 e8???????? 83c404 }
$sequence_8hex{ 5e ab b909000000 f3a5 ad 56 57 }
$sequence_9hex{ 33c0 bf???????? 8d3452 f3ab c1e604 aa 8d9ed8444700 }

Condition

7 of them and filesize < 1417216

In plain words (Heuristic)

  • The file must be smaller than 1417216 (a cheap guard that skips large files).
  • At least 7 patterns in the rule must match.

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References

Licence & attribution

Author: Felix Bilstein - yara-signator at cocacoding dot com

Source repository: Malpedia signator rules @ c901f97b7d

Licence: Creative Commons Attribution-ShareAlike 4.0 (repository licence)

Original rule

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

Rule id: 1041560a-82e8-5446-a4d2-998ea5c14e36

Metadata

version1
toolyara-signator v0.6.0
signator_configcallsandjumps;datarefs;binvalue
malpedia_rule_date20260422
malpedia_hasha182e35da64e6d71cb55f125c4d4225196523f14
malpedia_version20260504
malpedia_licenseCC BY-SA 4.0
malpedia_sharingTLP:WHITE

Tags:FILE