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MALPEDIA_Win_Miuref_Auto

autogenerated rule brought to you by yara-signator

MalwareMiurefMalpedia 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: Miuref.

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

Summary generated from the rule's metadata and condition.

Rule source

win-miuref-auto.yarCreative Commons Attribution-ShareAlike 4.0
rule MALPEDIA_Win_Miuref_Auto : FILE
{
	meta:
		description = "autogenerated rule brought to you by yara-signator"
		author = "Felix Bilstein - yara-signator at cocacoding dot com"
		id = "b336ee94-9da0-5e33-a775-7f1d3caeebd3"
		date = "2026-05-04"
		modified = "2026-05-18"
		reference = "https://malpedia.caad.fkie.fraunhofer.de/details/win.miuref"
		source_url = "https://github.com/malpedia/signator-rules//blob/c901f97b7df03e41917da74c2a84b04c227316c2/rules/win.miuref_auto.yar#L1-L131"
		license_url = "N/A"
		logic_hash = "913d762ad4796e031c609fe4719452713481e30eb4e037000680f101f2550080"
		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 = { 59 59 8945fc 85f6 760e 803c072e 7418 }
		$sequence_1 = { 68???????? 68ff0f0000 e8???????? 83c428 c9 c3 55 }
		$sequence_2 = { e8???????? 894534 6a02 8d4528 50 68???????? ff757c }
		$sequence_3 = { 6a20 50 e8???????? 8d45f4 6a3b 50 }
		$sequence_4 = { 891e 895e04 897e08 7411 8d043f 50 ff742414 }
		$sequence_5 = { 894534 6a02 8d4528 50 68???????? ff757c e8???????? }
		$sequence_6 = { 85c0 7611 8b7510 660fbe3431 6689344a }
		$sequence_7 = { 50 57 e8???????? 0fbe442420 53 50 8b07 }
		$sequence_8 = { c7807c020000d9874d93 a1???????? c7808002000022a944ac a1???????? c78084020000146a6d8c a1???????? c7808802000083c1f01c }
		$sequence_9 = { 8903 e8???????? 83c420 894510 85c0 7463 8d45d8 }

	condition:
		7 of them and filesize < 180224
}

Strings (10 patterns)

IdentifierTypeValueModifiers
$sequence_0hex{ 59 59 8945fc 85f6 760e 803c072e 7418 }
$sequence_1hex{ 68???????? 68ff0f0000 e8???????? 83c428 c9 c3 55 }
$sequence_2hex{ e8???????? 894534 6a02 8d4528 50 68???????? ff757c }
$sequence_3hex{ 6a20 50 e8???????? 8d45f4 6a3b 50 }
$sequence_4hex{ 891e 895e04 897e08 7411 8d043f 50 ff742414 }
$sequence_5hex{ 894534 6a02 8d4528 50 68???????? ff757c e8???????? }
$sequence_6hex{ 85c0 7611 8b7510 660fbe3431 6689344a }
$sequence_7hex{ 50 57 e8???????? 0fbe442420 53 50 8b07 }
$sequence_8hex{ c7807c020000d9874d93 a1???????? c7808002000022a944ac a1???????? c78084020000146a6d8c a1???????? c7808802000083c1f01c }
$sequence_9hex{ 8903 e8???????? 83c420 894510 85c0 7463 8d45d8 }

Condition

7 of them and filesize < 180224

In plain words (Heuristic)

  • The file must be smaller than 180224 (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: b336ee94-9da0-5e33-a775-7f1d3caeebd3

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