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MALPEDIA_Win_Unidentified_106_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
2026-05-04
Modified
2026-05-18
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-106-auto.yarCreative Commons Attribution-ShareAlike 4.0
rule MALPEDIA_Win_Unidentified_106_Auto : FILE
{
	meta:
		description = "autogenerated rule brought to you by yara-signator"
		author = "Felix Bilstein - yara-signator at cocacoding dot com"
		id = "1a5a63f0-e61a-5388-a041-ea7c2c03955c"
		date = "2026-05-04"
		modified = "2026-05-18"
		reference = "https://malpedia.caad.fkie.fraunhofer.de/details/win.unidentified_106"
		source_url = "https://github.com/malpedia/signator-rules//blob/c901f97b7df03e41917da74c2a84b04c227316c2/rules/win.unidentified_106_auto.yar#L1-L134"
		license_url = "N/A"
		logic_hash = "ebd07f80acf7eb25b7ba5efbfa82e2156ac262d1e823330a88e4e0ddb2a67982"
		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 = { 4d8bc6 488bd7 e8???????? 85c0 781d 488d8da8000000 448bce }
		$sequence_1 = { eb57 4c8b4c2450 418bcc 2bcf 412bce 4103cf 4183fc02 }
		$sequence_2 = { f0440108 488d4138 41b806000000 488d15196a0300 483950f0 740c 488b10 }
		$sequence_3 = { eb15 6685c0 7510 66c783480400000f10 c6834a04000001 33c0 488bbc24a8000000 }
		$sequence_4 = { e8???????? e9???????? b948000000 4889ac2440010000 e8???????? 488be8 4885c0 }
		$sequence_5 = { ffc1 8bc2 3bca 7cef 85d2 7e1f 4c8b4310 }
		$sequence_6 = { e8???????? f5 91 32baf8b76637 44e81b3bc545 205943 30ba84ffde36 }
		$sequence_7 = { e8???????? 8bc3 eb05 b856ffffff 4c8d5c2460 498b5b10 498b7318 }
		$sequence_8 = { e9???????? 80bb4704000002 7518 b206 488bcb e8???????? 8983e4020000 }
		$sequence_9 = { e8???????? 8bd0 85c0 7561 0fb68f28020000 458bc7 450fafc6 }

	condition:
		7 of them and filesize < 27402240
}

Strings (10 patterns)

IdentifierTypeValueModifiers
$sequence_0hex{ 4d8bc6 488bd7 e8???????? 85c0 781d 488d8da8000000 448bce }
$sequence_1hex{ eb57 4c8b4c2450 418bcc 2bcf 412bce 4103cf 4183fc02 }
$sequence_2hex{ f0440108 488d4138 41b806000000 488d15196a0300 483950f0 740c 488b10 }
$sequence_3hex{ eb15 6685c0 7510 66c783480400000f10 c6834a04000001 33c0 488bbc24a8000000 }
$sequence_4hex{ e8???????? e9???????? b948000000 4889ac2440010000 e8???????? 488be8 4885c0 }
$sequence_5hex{ ffc1 8bc2 3bca 7cef 85d2 7e1f 4c8b4310 }
$sequence_6hex{ e8???????? f5 91 32baf8b76637 44e81b3bc545 205943 30ba84ffde36 }
$sequence_7hex{ e8???????? 8bc3 eb05 b856ffffff 4c8d5c2460 498b5b10 498b7318 }
$sequence_8hex{ e9???????? 80bb4704000002 7518 b206 488bcb e8???????? 8983e4020000 }
$sequence_9hex{ e8???????? 8bd0 85c0 7561 0fb68f28020000 458bc7 450fafc6 }

Condition

7 of them and filesize < 27402240

In plain words (Heuristic)

  • The file must be smaller than 27402240 (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: 1a5a63f0-e61a-5388-a041-ea7c2c03955c

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