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MALPEDIA_Win_Donot_Auto

autogenerated rule brought to you by yara-signator

MalwareDonotMalpedia 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: Donot.

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

Summary generated from the rule's metadata and condition.

Rule source

win-donot-auto.yarCreative Commons Attribution-ShareAlike 4.0
rule MALPEDIA_Win_Donot_Auto : FILE
{
	meta:
		description = "autogenerated rule brought to you by yara-signator"
		author = "Felix Bilstein - yara-signator at cocacoding dot com"
		id = "afcaac87-e16e-5e45-b6a2-9d2a29dd939c"
		date = "2026-05-04"
		modified = "2026-05-18"
		reference = "https://malpedia.caad.fkie.fraunhofer.de/details/win.donot"
		source_url = "https://github.com/malpedia/signator-rules//blob/c901f97b7df03e41917da74c2a84b04c227316c2/rules/win.donot_auto.yar#L1-L130"
		license_url = "N/A"
		logic_hash = "d4c160cfebda2054e26b1cb968477da7b21003105d78aefc3dad6e44556cd440"
		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 = { 0f438528ffffff 03f0 56 e8???????? 8b85c8fcffff 83c40c c6043000 }
		$sequence_1 = { 52 51 e8???????? 83c408 8b4f10 b8ffffff7f 2bc1 }
		$sequence_2 = { 8d8dd8fcffff c645fc04 e8???????? 8885d4fcffff c645fc05 8b85d8fcffff 8b4804 }
		$sequence_3 = { 7409 8b34bd20b80310 eb07 8b34bdecb70310 53 46 e8???????? }
		$sequence_4 = { 51 e8???????? 83c408 0f108db8fcffff 83bdccfcffff10 8db5f8feffff f30f7e85c8fcffff }
		$sequence_5 = { 2bc6 8975f8 3bc2 0f8210010000 8d0416 8b7314 }
		$sequence_6 = { 83c0fc 83f81f 0f87600a0000 52 51 e8???????? }
		$sequence_7 = { c744243c0f000000 ff15???????? 8bf0 85f6 7416 ff15???????? }
		$sequence_8 = { 8b048d187b0410 f644382848 7427 8a55ff 8d4601 8945e4 80fa0a }
		$sequence_9 = { 0f871c070000 8bc2 51 50 e8???????? 83c408 }

	condition:
		7 of them and filesize < 626688
}

Strings (10 patterns)

IdentifierTypeValueModifiers
$sequence_0hex{ 0f438528ffffff 03f0 56 e8???????? 8b85c8fcffff 83c40c c6043000 }
$sequence_1hex{ 52 51 e8???????? 83c408 8b4f10 b8ffffff7f 2bc1 }
$sequence_2hex{ 8d8dd8fcffff c645fc04 e8???????? 8885d4fcffff c645fc05 8b85d8fcffff 8b4804 }
$sequence_3hex{ 7409 8b34bd20b80310 eb07 8b34bdecb70310 53 46 e8???????? }
$sequence_4hex{ 51 e8???????? 83c408 0f108db8fcffff 83bdccfcffff10 8db5f8feffff f30f7e85c8fcffff }
$sequence_5hex{ 2bc6 8975f8 3bc2 0f8210010000 8d0416 8b7314 }
$sequence_6hex{ 83c0fc 83f81f 0f87600a0000 52 51 e8???????? }
$sequence_7hex{ c744243c0f000000 ff15???????? 8bf0 85f6 7416 ff15???????? }
$sequence_8hex{ 8b048d187b0410 f644382848 7427 8a55ff 8d4601 8945e4 80fa0a }
$sequence_9hex{ 0f871c070000 8bc2 51 50 e8???????? 83c408 }

Condition

7 of them and filesize < 626688

In plain words (Heuristic)

  • The file must be smaller than 626688 (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.

Open in editor

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: afcaac87-e16e-5e45-b6a2-9d2a29dd939c

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

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