YARA · Malpedia signator rules
MALPEDIA_Win_Unidentified_104_Auto
autogenerated rule brought to you by yara-signator
- 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-104-auto.yarCreative Commons Attribution-ShareAlike 4.0
rule MALPEDIA_Win_Unidentified_104_Auto : FILE
{
meta:
= "autogenerated rule brought to you by yara-signator"
= "Felix Bilstein - yara-signator at cocacoding dot com"
= "aad3c8e5-d3ed-53bc-9ae8-94bd65d40828"
= "2026-05-04"
= "2026-05-18"
= "https://malpedia.caad.fkie.fraunhofer.de/details/win.unidentified_104"
= "https://github.com/malpedia/signator-rules//blob/c901f97b7df03e41917da74c2a84b04c227316c2/rules/win.unidentified_104_auto.yar#L1-L127"
= "N/A"
= "9445de52bf7e66acf56781027aa78bcec480facad21f4cf8d849d071ba92e136"
= 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 = { 4c8bf2 e8???????? ba20000000 498bce 488bf0 ff15???????? 84c0 }
$sequence_1 = { 4c8b0424 488bf1 48c1ee3f 488d0409 4833f0 498b8298000000 4903c3 }
$sequence_2 = { 48895c2408 57 4883ec20 488d1d33620100 488d3d2c620100 eb12 488b03 }
$sequence_3 = { eb10 4c8d8de0010000 488bd3 e8???????? }
$sequence_4 = { 4d85c0 0f84a7000000 488bc4 48895808 48896810 48897018 48897820 }
$sequence_5 = { 488b442410 490fafc6 4801842428010000 49634004 480faf442440 4801842428010000 }
$sequence_6 = { 4c8b6918 4489542468 8b4304 4c8d0cc0 }
$sequence_7 = { 4c03f8 41897c2408 488b7c2438 4189742414 488b742430 498d8f00000002 41895c2418 }
$sequence_8 = { 0f8423030000 488d8530040000 4889442420 4533c9 4533c0 418bd6 488b4c2448 }
$sequence_9 = { 48c1ea20 4833d3 498b9ba8000000 4803c2 4c33f0 48898424a0000000 498bce }
condition:
7 of them and filesize < 263168
}
Strings (10 patterns)
| Identifier | Type | Value | Modifiers |
|---|---|---|---|
| $sequence_0 | hex | { 4c8bf2 e8???????? ba20000000 498bce 488bf0 ff15???????? 84c0 } | |
| $sequence_1 | hex | { 4c8b0424 488bf1 48c1ee3f 488d0409 4833f0 498b8298000000 4903c3 } | |
| $sequence_2 | hex | { 48895c2408 57 4883ec20 488d1d33620100 488d3d2c620100 eb12 488b03 } | |
| $sequence_3 | hex | { eb10 4c8d8de0010000 488bd3 e8???????? } | |
| $sequence_4 | hex | { 4d85c0 0f84a7000000 488bc4 48895808 48896810 48897018 48897820 } | |
| $sequence_5 | hex | { 488b442410 490fafc6 4801842428010000 49634004 480faf442440 4801842428010000 } | |
| $sequence_6 | hex | { 4c8b6918 4489542468 8b4304 4c8d0cc0 } | |
| $sequence_7 | hex | { 4c03f8 41897c2408 488b7c2438 4189742414 488b742430 498d8f00000002 41895c2418 } | |
| $sequence_8 | hex | { 0f8423030000 488d8530040000 4889442420 4533c9 4533c0 418bd6 488b4c2448 } | |
| $sequence_9 | hex | { 48c1ea20 4833d3 498b9ba8000000 4803c2 4c33f0 48898424a0000000 498bce } |
Condition
7 of them and filesize < 263168In plain words (Heuristic)
- The file must be smaller than 263168 (a cheap guard that skips large files).
- At least 7 patterns in the rule must match.
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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: aad3c8e5-d3ed-53bc-9ae8-94bd65d40828
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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