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MALPEDIA_Win_Unidentified_111_Auto

autogenerated rule brought to you by yara-signator

MalwareMalpedia signator rulesCreative Commons Attribution-ShareAlike 4.0Compiles with YARA-X
Author
Felix Bilstein - yara-signator at cocacoding dot com
Date
2023-12-06
Modified
2023-12-08
Score / Quality
75 / 75

What this rule detects

autogenerated rule brought to you by yara-signator

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

Summary generated from the rule's metadata and condition.

Rule source

win-unidentified-111-auto.yarCreative Commons Attribution-ShareAlike 4.0
rule MALPEDIA_Win_Unidentified_111_Auto : FILE
{
	meta:
		description = "autogenerated rule brought to you by yara-signator"
		author = "Felix Bilstein - yara-signator at cocacoding dot com"
		id = "761c3c1a-627b-5adf-b1c2-f96f11c05a94"
		date = "2023-12-06"
		modified = "2023-12-08"
		reference = "https://malpedia.caad.fkie.fraunhofer.de/details/win.unidentified_111"
		source_url = "https://github.com/malpedia/signator-rules//blob/c901f97b7df03e41917da74c2a84b04c227316c2/rules/win.unidentified_111_auto.yar#L1-L125"
		license_url = "N/A"
		logic_hash = "8a86a6eb9509e0a5b4e912cde53abfcabb23f3644fc565d69ca8396c5dc5d7c9"
		score = 75
		quality = 75
		tags = "FILE"
		version = "1"
		tool = "yara-signator v0.6.0"
		signator_config = "callsandjumps;datarefs;binvalue"
		malpedia_rule_date = "20231130"
		malpedia_hash = "fc8a0e9f343f6d6ded9e7df1a64dac0cc68d7351"
		malpedia_version = "20230808"
		malpedia_license = "CC BY-SA 4.0"
		malpedia_sharing = "TLP:WHITE"

	strings:
		$sequence_0 = { 488b4c2428 0fbe09 3bc1 7512 }
		$sequence_1 = { c744242002000000 e9???????? 837c243406 7511 837c243801 750a }
		$sequence_2 = { 8b00 488b4c2430 488b09 0fbe0401 48634c2404 488b542428 0fbe0c0a }
		$sequence_3 = { eb43 41b901000000 448b442424 488b542428 488b4c2448 e8???????? }
		$sequence_4 = { eb1f c744242000000000 4533c9 4533c0 }
		$sequence_5 = { 488b4c2448 ff15???????? 89442444 837c244400 7502 eb11 }
		$sequence_6 = { 488d8c0c60020000 ba02000000 486bd200 4803ca 448bc0 488b542420 e8???????? }
		$sequence_7 = { 66c1ca08 0fb7d2 4c8b8424a0000000 450fb74006 6641c1c808 450fb7c0 4c8b8c24a0000000 }
		$sequence_8 = { e8???????? b910000000 e8???????? 4889442448 488b442448 488b4c2450 488908 }
		$sequence_9 = { 4889542410 48894c2408 4883ec78 c744243000000000 c744243400000000 488b942488000000 488d4c2448 }

	condition:
		7 of them and filesize < 148480
}

Strings (10 patterns)

IdentifierTypeValueModifiers
$sequence_0hex{ 488b4c2428 0fbe09 3bc1 7512 }
$sequence_1hex{ c744242002000000 e9???????? 837c243406 7511 837c243801 750a }
$sequence_2hex{ 8b00 488b4c2430 488b09 0fbe0401 48634c2404 488b542428 0fbe0c0a }
$sequence_3hex{ eb43 41b901000000 448b442424 488b542428 488b4c2448 e8???????? }
$sequence_4hex{ eb1f c744242000000000 4533c9 4533c0 }
$sequence_5hex{ 488b4c2448 ff15???????? 89442444 837c244400 7502 eb11 }
$sequence_6hex{ 488d8c0c60020000 ba02000000 486bd200 4803ca 448bc0 488b542420 e8???????? }
$sequence_7hex{ 66c1ca08 0fb7d2 4c8b8424a0000000 450fb74006 6641c1c808 450fb7c0 4c8b8c24a0000000 }
$sequence_8hex{ e8???????? b910000000 e8???????? 4889442448 488b442448 488b4c2450 488908 }
$sequence_9hex{ 4889542410 48894c2408 4883ec78 c744243000000000 c744243400000000 488b942488000000 488d4c2448 }

Condition

7 of them and filesize < 148480

In plain words (Heuristic)

  • The file must be smaller than 148480 (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: 761c3c1a-627b-5adf-b1c2-f96f11c05a94

Metadata

version1
toolyara-signator v0.6.0
signator_configcallsandjumps;datarefs;binvalue
malpedia_rule_date20231130
malpedia_hashfc8a0e9f343f6d6ded9e7df1a64dac0cc68d7351
malpedia_version20230808
malpedia_licenseCC BY-SA 4.0
malpedia_sharingTLP:WHITE

Tags:FILE