YARA · Malpedia signator rules
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:
= "autogenerated rule brought to you by yara-signator"
= "Felix Bilstein - yara-signator at cocacoding dot com"
= "d9f754c4-3f1b-5282-a982-a666f4b254d3"
= "2026-05-04"
= "2026-05-18"
= "https://malpedia.caad.fkie.fraunhofer.de/details/win.t34loader"
= "https://github.com/malpedia/signator-rules//blob/c901f97b7df03e41917da74c2a84b04c227316c2/rules/win.t34loader_auto.yar#L1-L132"
= "N/A"
= "409ead522e948ccd1d7b96eb38b4fbbd6b0cbb5cc3d36b64d40c2ffacfc18982"
= 75
= 75
= "FILE"
= "1"
= "yara-signator v0.6.0"
= "callsandjumps;datarefs;binvalue"
= "20260422"
= "a182e35da64e6d71cb55f125c4d4225196523f14"
= "20260504"
= "CC BY-SA 4.0"
= "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)
| Identifier | Type | Value | Modifiers |
|---|---|---|---|
| $sequence_0 | hex | { 4c8bc2 4c3bd2 4d0f46c2 498bcb e8???????? 488b5508 488d145502000000 } | |
| $sequence_1 | hex | { 4c8bc1 488bca e8???????? 498bc8 488bd8 e8???????? 488bc8 } | |
| $sequence_2 | hex | { 41898a3cf6ffff 4883eb01 75c4 4d8d91500d0000 bb8c010000 458b1a 418bc3 } | |
| $sequence_3 | hex | { 488d05bf280300 488bd9 488901 f6c201 740a ba18000000 e8???????? } | |
| $sequence_4 | hex | { 4889442420 4c8b4d00 e8???????? 488d052faf0100 483be8 0f8c7bffffff 85ff } | |
| $sequence_5 | hex | { 741c 420fb71c36 498bcd ff15???????? 488bc8 8bd3 ff15???????? } | |
| $sequence_6 | hex | { 4889442420 e8???????? 84c0 0f84ee000000 488d4c2440 e8???????? 4885c0 } | |
| $sequence_7 | hex | { 488d4530 48837d4808 480f434530 663908 7508 8ada eb04 } | |
| $sequence_8 | hex | { c744242822000000 c744242004000000 f20f11742450 488d0d0e4f0100 4c8b442450 } | |
| $sequence_9 | hex | { 488b4df0 ff15???????? b001 eb02 32c0 488b5c2460 488b742470 } |
Condition
7 of them and filesize < 1212416In 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.
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.
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)
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
| 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 |
Tags:FILE
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