YARA · Malpedia signator rules
MALPEDIA_Win_Megacortex_Auto
autogenerated rule brought to you by yara-signator
- Autor
- Felix Bilstein - yara-signator at cocacoding dot com
- Datum
- 2026-05-04
- Geändert
- 2026-05-18
- Score / Qualität
- 75 / 75
Was diese Regel erkennt
autogenerated rule brought to you by yara-signator
Zugehörige Malware-Familie: MegaCortex.
Sie definiert 10 Muster (0 Text, 10 Hex, 0 Regex).
Zusammenfassung aus den Metadaten und der Bedingung der Regel erzeugt.
Regelquelltext
rule MALPEDIA_Win_Megacortex_Auto : FILE
{
meta:
= "autogenerated rule brought to you by yara-signator"
= "Felix Bilstein - yara-signator at cocacoding dot com"
= "b5bb63fb-3089-5f8c-b023-4b322e1ffdeb"
= "2026-05-04"
= "2026-05-18"
= "https://malpedia.caad.fkie.fraunhofer.de/details/win.megacortex"
= "https://github.com/malpedia/signator-rules//blob/c901f97b7df03e41917da74c2a84b04c227316c2/rules/win.megacortex_auto.yar#L1-L133"
= "N/A"
= "fec25d610ad764a47bbbd46e44e0e105c2dbfc3def1f6860b6a5cbcbda6add1c"
= 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 = { 8b00 8be5 5d c3 8d4df0 e8???????? 68???????? }
$sequence_1 = { f7df 1bff 2bd8 23fa 03f9 8d46ff f7d8 }
$sequence_2 = { ff75c4 ff15???????? 85c0 740a ff15???????? 85c0 742b }
$sequence_3 = { ff75b8 e8???????? 0175b8 8d430f 83c40c 8d5320 297510 }
$sequence_4 = { 894604 8901 8b85349cffff 8b00 50 8d4808 51 }
$sequence_5 = { eb21 83bdac9cffff10 8d85989cffff 52 0f4385989cffff 8d8de09cffff 50 }
$sequence_6 = { 8db378020000 56 e8???????? ff7508 57 53 68???????? }
$sequence_7 = { ff75e8 56 6a18 eb0f 83f807 7538 }
$sequence_8 = { f7d8 895dfc 1bc0 23c1 8b10 2bc6 83e2fd }
$sequence_9 = { e8???????? 8bf0 83c40c 85f6 0f85b0000000 6a01 ff750c }
condition:
7 of them and filesize < 1556480
}
Strings (10 Muster)
| Bezeichner | Typ | Wert | Modifikatoren |
|---|---|---|---|
| $sequence_0 | Hex | { 8b00 8be5 5d c3 8d4df0 e8???????? 68???????? } | |
| $sequence_1 | Hex | { f7df 1bff 2bd8 23fa 03f9 8d46ff f7d8 } | |
| $sequence_2 | Hex | { ff75c4 ff15???????? 85c0 740a ff15???????? 85c0 742b } | |
| $sequence_3 | Hex | { ff75b8 e8???????? 0175b8 8d430f 83c40c 8d5320 297510 } | |
| $sequence_4 | Hex | { 894604 8901 8b85349cffff 8b00 50 8d4808 51 } | |
| $sequence_5 | Hex | { eb21 83bdac9cffff10 8d85989cffff 52 0f4385989cffff 8d8de09cffff 50 } | |
| $sequence_6 | Hex | { 8db378020000 56 e8???????? ff7508 57 53 68???????? } | |
| $sequence_7 | Hex | { ff75e8 56 6a18 eb0f 83f807 7538 } | |
| $sequence_8 | Hex | { f7d8 895dfc 1bc0 23c1 8b10 2bc6 83e2fd } | |
| $sequence_9 | Hex | { e8???????? 8bf0 83c40c 85f6 0f85b0000000 6a01 ff750c } |
Bedingung
7 of them and filesize < 1556480In Worten (Heuristik)
- Die Datei muss kleiner als 1556480 sein (eine günstige Grenze, die große Dateien ausschließt).
- Mindestens 7 Muster aus der Regel müssen treffen.
Diese Regel im Browser testen
Legen Sie eine Datei ab, um sie mit dieser Regel und YARA-X als WebAssembly zu scannen. Nichts wird hochgeladen.
Lizenz & Namensnennung
Autor: Felix Bilstein - yara-signator at cocacoding dot com
Quell-Repository: Malpedia signator rules @ c901f97b7d
Lizenz: Creative Commons Attribution-ShareAlike 4.0 (Repository-Lizenz)
Gespiegelt über YARA Forge 20260927, das Regelnamen mit der Quelle präfixiert und normalisierte Meta-Felder ergänzt.
Regel-ID: b5bb63fb-3089-5f8c-b023-4b322e1ffdeb
Metadaten
| 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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