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MALPEDIA_Win_Stormwind_Auto

autogenerated rule brought to you by yara-signator

MalwareStormwindMalpedia 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: Stormwind.

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

Summary generated from the rule's metadata and condition.

Rule source

win-stormwind-auto.yarCreative Commons Attribution-ShareAlike 4.0
rule MALPEDIA_Win_Stormwind_Auto : FILE
{
	meta:
		description = "autogenerated rule brought to you by yara-signator"
		author = "Felix Bilstein - yara-signator at cocacoding dot com"
		id = "a8201349-f1b3-5f54-a633-be4c25ea5016"
		date = "2026-05-04"
		modified = "2026-05-18"
		reference = "https://malpedia.caad.fkie.fraunhofer.de/details/win.stormwind"
		source_url = "https://github.com/malpedia/signator-rules//blob/c901f97b7df03e41917da74c2a84b04c227316c2/rules/win.stormwind_auto.yar#L1-L121"
		license_url = "N/A"
		logic_hash = "e0acea9cdfedc7d121604bc91ea573c499c2b2be2e578cb618248ba1668e32f9"
		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 = { 85f6 0f849b010000 8b5e14 85db 0f8890010000 8b7e10 85ff }
		$sequence_1 = { 3bc8 1bc0 23c1 83c008 5d c3 8b04c524e60410 }
		$sequence_2 = { 0fb606 0fbe80c0f10410 85c0 7510 e8???????? c7002a000000 e9???????? }
		$sequence_3 = { 68???????? ff15???????? 68???????? 8d442418 6804010000 }
		$sequence_4 = { 8b4804 8b30 894dfc 50 }
		$sequence_5 = { 8d8f80000000 c745fc00000000 e8???????? 8bf0 }
		$sequence_6 = { 89542420 83faff 0f8462010000 8d9b00000000 8b5c2438 83c9ff }
		$sequence_7 = { 8d45f8 c745f8???????? 50 8d4de0 e8???????? c745e04c0c0410 8d45e0 }
		$sequence_8 = { 8bf9 897df0 83ec08 c70700000000 c7470400000000 8d8f80000000 }
		$sequence_9 = { 50 e8???????? f6c102 7474 }

	condition:
		7 of them and filesize < 741376
}

Strings (10 patterns)

IdentifierTypeValueModifiers
$sequence_0hex{ 85f6 0f849b010000 8b5e14 85db 0f8890010000 8b7e10 85ff }
$sequence_1hex{ 3bc8 1bc0 23c1 83c008 5d c3 8b04c524e60410 }
$sequence_2hex{ 0fb606 0fbe80c0f10410 85c0 7510 e8???????? c7002a000000 e9???????? }
$sequence_3hex{ 68???????? ff15???????? 68???????? 8d442418 6804010000 }
$sequence_4hex{ 8b4804 8b30 894dfc 50 }
$sequence_5hex{ 8d8f80000000 c745fc00000000 e8???????? 8bf0 }
$sequence_6hex{ 89542420 83faff 0f8462010000 8d9b00000000 8b5c2438 83c9ff }
$sequence_7hex{ 8d45f8 c745f8???????? 50 8d4de0 e8???????? c745e04c0c0410 8d45e0 }
$sequence_8hex{ 8bf9 897df0 83ec08 c70700000000 c7470400000000 8d8f80000000 }
$sequence_9hex{ 50 e8???????? f6c102 7474 }

Condition

7 of them and filesize < 741376

In plain words (Heuristic)

  • The file must be smaller than 741376 (a cheap guard that skips large files).
  • At least 7 patterns in the rule must match.

Test this rule in your browser

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Drop a file here or click to chooseScanned locally with YARA-X. Files up to 200 MB.

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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: a8201349-f1b3-5f54-a633-be4c25ea5016

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