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MALPEDIA_Win_Dynowiper_Auto

autogenerated rule brought to you by yara-signator

MalwareDynowiperMalpedia 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: Dynowiper.

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

Summary generated from the rule's metadata and condition.

Rule source

win-dynowiper-auto.yarCreative Commons Attribution-ShareAlike 4.0
rule MALPEDIA_Win_Dynowiper_Auto : FILE
{
	meta:
		description = "autogenerated rule brought to you by yara-signator"
		author = "Felix Bilstein - yara-signator at cocacoding dot com"
		id = "6f53cc06-0a79-54dc-a61c-834614c7219e"
		date = "2026-05-04"
		modified = "2026-05-18"
		reference = "https://malpedia.caad.fkie.fraunhofer.de/details/win.dynowiper"
		source_url = "https://github.com/malpedia/signator-rules//blob/c901f97b7df03e41917da74c2a84b04c227316c2/rules/win.dynowiper_auto.yar#L1-L125"
		license_url = "N/A"
		logic_hash = "87ffa3582c8bdc798a3280ec361a38c33e352272284eb95668c020eadf0b3cc1"
		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 = { 7528 8d45ec c745ec54474200 50 8d4ddc e8???????? 68???????? }
		$sequence_1 = { e9???????? 8b95ecefffff 8b8ddcefffff 2b7b08 037b04 8b049590914200 8b95f4efffff }
		$sequence_2 = { 8b45f4 56 ff75e4 8b048590914200 }
		$sequence_3 = { 8bd8 6a00 85db 7f1f }
		$sequence_4 = { 85c9 7465 8b06 8b04b8 8901 eb5c 8b5608 }
		$sequence_5 = { 80b85081420000 751d 8b5df0 83fa04 7f12 3bf3 }
		$sequence_6 = { ff15???????? 85c0 7443 8d44240c c744240801000000 50 }
		$sequence_7 = { 8d4900 8b06 3d70020000 7509 8bce e8???????? }
		$sequence_8 = { 83c404 33c0 c745e807000000 837dd010 668945d4 8945e4 720b }
		$sequence_9 = { 33882c060000 33ca 8988b8090000 4e 75c9 eb0e 3de0040000 }

	condition:
		7 of them and filesize < 374784
}

Strings (10 patterns)

IdentifierTypeValueModifiers
$sequence_0hex{ 7528 8d45ec c745ec54474200 50 8d4ddc e8???????? 68???????? }
$sequence_1hex{ e9???????? 8b95ecefffff 8b8ddcefffff 2b7b08 037b04 8b049590914200 8b95f4efffff }
$sequence_2hex{ 8b45f4 56 ff75e4 8b048590914200 }
$sequence_3hex{ 8bd8 6a00 85db 7f1f }
$sequence_4hex{ 85c9 7465 8b06 8b04b8 8901 eb5c 8b5608 }
$sequence_5hex{ 80b85081420000 751d 8b5df0 83fa04 7f12 3bf3 }
$sequence_6hex{ ff15???????? 85c0 7443 8d44240c c744240801000000 50 }
$sequence_7hex{ 8d4900 8b06 3d70020000 7509 8bce e8???????? }
$sequence_8hex{ 83c404 33c0 c745e807000000 837dd010 668945d4 8945e4 720b }
$sequence_9hex{ 33882c060000 33ca 8988b8090000 4e 75c9 eb0e 3de0040000 }

Condition

7 of them and filesize < 374784

In plain words (Heuristic)

  • The file must be smaller than 374784 (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: 6f53cc06-0a79-54dc-a61c-834614c7219e

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