YARA · Malpedia signator rules
MALPEDIA_Win_Beardshell_Auto
autogenerated rule brought to you by yara-signator
- Auteur
- Felix Bilstein - yara-signator at cocacoding dot com
- Date
- 2026-05-04
- Modifiée
- 2026-05-18
- Score / Qualité
- 75 / 75
Ce que détecte cette règle
autogenerated rule brought to you by yara-signator
Famille de malware associée : Beardshell.
Elle définit 10 motifs (0 texte, 10 hex, 0 regex).
Résumé généré à partir des métadonnées et de la condition de la règle.
Source de la règle
rule MALPEDIA_Win_Beardshell_Auto : FILE
{
meta:
= "autogenerated rule brought to you by yara-signator"
= "Felix Bilstein - yara-signator at cocacoding dot com"
= "e5705008-2d0d-5908-a5da-71f225affd6b"
= "2026-05-04"
= "2026-05-18"
= "https://malpedia.caad.fkie.fraunhofer.de/details/win.beardshell"
= "https://github.com/malpedia/signator-rules//blob/c901f97b7df03e41917da74c2a84b04c227316c2/rules/win.beardshell_auto.yar#L1-L134"
= "N/A"
= "b0ca4ee127af48ffbd53604c7a7a1b25b077c2eed891f295d5e08e8a0c96eecc"
= 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 = { e8???????? 488b4c2430 668944242e 488b542448 e8???????? 668b4c242e 668908 }
$sequence_1 = { e8???????? 488b4c2440 4c8b442450 4983c001 488b542430 e8???????? 488b8c2480000000 }
$sequence_2 = { 48894c2428 e8???????? 4889442438 488d0565db0500 4889442430 4c8b442438 488d4c2448 }
$sequence_3 = { 4531c0 e8???????? 488d4c2458 e8???????? 4889c1 488d542466 e8???????? }
$sequence_4 = { 4889542410 55 4883ec20 488daa80000000 488d8db0020000 e8???????? 90 }
$sequence_5 = { 4c894030 4c8d4520 4c894028 48c7402000000000 4c8d4508 41b918010000 e8???????? }
$sequence_6 = { e9???????? 488d4d20 e8???????? 8a00 884517 8b4530 c1e804 }
$sequence_7 = { 488b8424e8000000 488b4c2478 4829c8 4883f805 0f8d2a000000 488b4c2438 c78424e400000084000000 }
$sequence_8 = { e8???????? 837c244000 0f8e54000000 488b8424a8000000 4889842480000000 4c8b8c2480000000 488d0d43340b00 }
$sequence_9 = { e9???????? f644245701 0f842f000000 48b80000000000000800 4839442438 0f851a000000 488d05905b0c00 }
condition:
7 of them and filesize < 2416640
}
Chaînes (10 motifs)
| Identifiant | Type | Valeur | Modificateurs |
|---|---|---|---|
| $sequence_0 | hex | { e8???????? 488b4c2430 668944242e 488b542448 e8???????? 668b4c242e 668908 } | |
| $sequence_1 | hex | { e8???????? 488b4c2440 4c8b442450 4983c001 488b542430 e8???????? 488b8c2480000000 } | |
| $sequence_2 | hex | { 48894c2428 e8???????? 4889442438 488d0565db0500 4889442430 4c8b442438 488d4c2448 } | |
| $sequence_3 | hex | { 4531c0 e8???????? 488d4c2458 e8???????? 4889c1 488d542466 e8???????? } | |
| $sequence_4 | hex | { 4889542410 55 4883ec20 488daa80000000 488d8db0020000 e8???????? 90 } | |
| $sequence_5 | hex | { 4c894030 4c8d4520 4c894028 48c7402000000000 4c8d4508 41b918010000 e8???????? } | |
| $sequence_6 | hex | { e9???????? 488d4d20 e8???????? 8a00 884517 8b4530 c1e804 } | |
| $sequence_7 | hex | { 488b8424e8000000 488b4c2478 4829c8 4883f805 0f8d2a000000 488b4c2438 c78424e400000084000000 } | |
| $sequence_8 | hex | { e8???????? 837c244000 0f8e54000000 488b8424a8000000 4889842480000000 4c8b8c2480000000 488d0d43340b00 } | |
| $sequence_9 | hex | { e9???????? f644245701 0f842f000000 48b80000000000000800 4839442438 0f851a000000 488d05905b0c00 } |
Condition
7 of them and filesize < 2416640En clair (Heuristique)
- Le fichier doit faire moins de 2416640 (garde-fou peu coûteux qui écarte les gros fichiers).
- Au moins 7 motifs de la règle doivent être trouvés.
Tester cette règle dans votre navigateur
Déposez un fichier pour le scanner avec cette règle grâce à YARA-X compilé en WebAssembly. Rien n’est envoyé.
Licence et attribution
Auteur : Felix Bilstein - yara-signator at cocacoding dot com
Dépôt source : Malpedia signator rules @ c901f97b7d
Licence : Creative Commons Attribution-ShareAlike 4.0 (licence du dépôt)
Reprise via YARA Forge 20260927, qui préfixe les noms de règles par la source et ajoute des champs meta normalisés.
Identifiant de règle: e5705008-2d0d-5908-a5da-71f225affd6b
Métadonnées
| 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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