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MALPEDIA_Win_T34Loader_Auto

autogenerated rule brought to you by yara-signator

MalwareT34LoaderMalpedia 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: T34Loader.

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

Summary generated from the rule's metadata and condition.

Rule source

win-t34loader-auto.yarCreative Commons Attribution-ShareAlike 4.0
rule MALPEDIA_Win_T34Loader_Auto : FILE
{
	meta:
		description = "autogenerated rule brought to you by yara-signator"
		author = "Felix Bilstein - yara-signator at cocacoding dot com"
		id = "d9f754c4-3f1b-5282-a982-a666f4b254d3"
		date = "2026-05-04"
		modified = "2026-05-18"
		reference = "https://malpedia.caad.fkie.fraunhofer.de/details/win.t34loader"
		source_url = "https://github.com/malpedia/signator-rules//blob/c901f97b7df03e41917da74c2a84b04c227316c2/rules/win.t34loader_auto.yar#L1-L132"
		license_url = "N/A"
		logic_hash = "409ead522e948ccd1d7b96eb38b4fbbd6b0cbb5cc3d36b64d40c2ffacfc18982"
		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 = { 4c8bc2 4c3bd2 4d0f46c2 498bcb e8???????? 488b5508 488d145502000000 }
		$sequence_1 = { 4c8bc1 488bca e8???????? 498bc8 488bd8 e8???????? 488bc8 }
		$sequence_2 = { 41898a3cf6ffff 4883eb01 75c4 4d8d91500d0000 bb8c010000 458b1a 418bc3 }
		$sequence_3 = { 488d05bf280300 488bd9 488901 f6c201 740a ba18000000 e8???????? }
		$sequence_4 = { 4889442420 4c8b4d00 e8???????? 488d052faf0100 483be8 0f8c7bffffff 85ff }
		$sequence_5 = { 741c 420fb71c36 498bcd ff15???????? 488bc8 8bd3 ff15???????? }
		$sequence_6 = { 4889442420 e8???????? 84c0 0f84ee000000 488d4c2440 e8???????? 4885c0 }
		$sequence_7 = { 488d4530 48837d4808 480f434530 663908 7508 8ada eb04 }
		$sequence_8 = { c744242822000000 c744242004000000 f20f11742450 488d0d0e4f0100 4c8b442450 }
		$sequence_9 = { 488b4df0 ff15???????? b001 eb02 32c0 488b5c2460 488b742470 }

	condition:
		7 of them and filesize < 1212416
}

Strings (10 patterns)

IdentifierTypeValueModifiers
$sequence_0hex{ 4c8bc2 4c3bd2 4d0f46c2 498bcb e8???????? 488b5508 488d145502000000 }
$sequence_1hex{ 4c8bc1 488bca e8???????? 498bc8 488bd8 e8???????? 488bc8 }
$sequence_2hex{ 41898a3cf6ffff 4883eb01 75c4 4d8d91500d0000 bb8c010000 458b1a 418bc3 }
$sequence_3hex{ 488d05bf280300 488bd9 488901 f6c201 740a ba18000000 e8???????? }
$sequence_4hex{ 4889442420 4c8b4d00 e8???????? 488d052faf0100 483be8 0f8c7bffffff 85ff }
$sequence_5hex{ 741c 420fb71c36 498bcd ff15???????? 488bc8 8bd3 ff15???????? }
$sequence_6hex{ 4889442420 e8???????? 84c0 0f84ee000000 488d4c2440 e8???????? 4885c0 }
$sequence_7hex{ 488d4530 48837d4808 480f434530 663908 7508 8ada eb04 }
$sequence_8hex{ c744242822000000 c744242004000000 f20f11742450 488d0d0e4f0100 4c8b442450 }
$sequence_9hex{ 488b4df0 ff15???????? b001 eb02 32c0 488b5c2460 488b742470 }

Condition

7 of them and filesize < 1212416

In plain words (Heuristic)

  • The file must be smaller than 1212416 (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: d9f754c4-3f1b-5282-a982-a666f4b254d3

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