YARA · Malpedia signator rules
MALPEDIA_Win_Disk_Knight_Auto
autogenerated rule brought to you by yara-signator
MalwareDisk KnightMalpedia 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: Disk Knight.
It defines 10 patterns (0 text, 10 hex, 0 regex).
Summary generated from the rule's metadata and condition.
Rule source
win-disk-knight-auto.yarCreative Commons Attribution-ShareAlike 4.0
rule MALPEDIA_Win_Disk_Knight_Auto : FILE
{
meta:
= "autogenerated rule brought to you by yara-signator"
= "Felix Bilstein - yara-signator at cocacoding dot com"
= "c3c383cd-5c27-526d-bf8a-de5ceb0bf642"
= "2026-05-04"
= "2026-05-18"
= "https://malpedia.caad.fkie.fraunhofer.de/details/win.disk_knight"
= "https://github.com/malpedia/signator-rules//blob/c901f97b7df03e41917da74c2a84b04c227316c2/rules/win.disk_knight_auto.yar#L1-L133"
= "N/A"
= "977e947a6254dfcd3e69c50715f7d60676f8272c5383d355c60035f816ae6726"
= 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 = { 8d95f8feffff 52 56 ff9100010000 dbe2 85c0 7d0e }
$sequence_1 = { c785b8fdffffd8a44400 eb0a c785b8fdffffd8a44400 8b8db8fdffff 8b11 8995c0feffff 8d45a4 }
$sequence_2 = { 8b420c 8b8db4feffff 8b1408 52 ff15???????? 50 }
$sequence_3 = { 50 8d559c 52 ff15???????? 83ec10 8bc4 8930 }
$sequence_4 = { 833f00 750c 57 68???????? ff15???????? 8b37 8d4de4 }
$sequence_5 = { 8b4dc4 83c001 0f80eb020000 2bc8 0f80e3020000 894de0 6a00 }
$sequence_6 = { 8b4db0 83c105 0f803b080000 83c105 0f8032080000 0faf4dd4 0f8028080000 }
$sequence_7 = { 8985c0feffff 8d4da4 51 8b95c0feffff 8b02 8b8dc0feffff 51 }
$sequence_8 = { 89bd70ffffff ff15???????? 8bd0 8d4dd0 ff15???????? 50 ff15???????? }
$sequence_9 = { 85c0 0f84bf010000 c745fc0d000000 c78560ffffff04000280 c78558ffffff0a000000 c78570ffffff04000280 c78568ffffff0a000000 }
condition:
7 of them and filesize < 868352
}
Strings (10 patterns)
| Identifier | Type | Value | Modifiers |
|---|---|---|---|
| $sequence_0 | hex | { 8d95f8feffff 52 56 ff9100010000 dbe2 85c0 7d0e } | |
| $sequence_1 | hex | { c785b8fdffffd8a44400 eb0a c785b8fdffffd8a44400 8b8db8fdffff 8b11 8995c0feffff 8d45a4 } | |
| $sequence_2 | hex | { 8b420c 8b8db4feffff 8b1408 52 ff15???????? 50 } | |
| $sequence_3 | hex | { 50 8d559c 52 ff15???????? 83ec10 8bc4 8930 } | |
| $sequence_4 | hex | { 833f00 750c 57 68???????? ff15???????? 8b37 8d4de4 } | |
| $sequence_5 | hex | { 8b4dc4 83c001 0f80eb020000 2bc8 0f80e3020000 894de0 6a00 } | |
| $sequence_6 | hex | { 8b4db0 83c105 0f803b080000 83c105 0f8032080000 0faf4dd4 0f8028080000 } | |
| $sequence_7 | hex | { 8985c0feffff 8d4da4 51 8b95c0feffff 8b02 8b8dc0feffff 51 } | |
| $sequence_8 | hex | { 89bd70ffffff ff15???????? 8bd0 8d4dd0 ff15???????? 50 ff15???????? } | |
| $sequence_9 | hex | { 85c0 0f84bf010000 c745fc0d000000 c78560ffffff04000280 c78558ffffff0a000000 c78570ffffff04000280 c78568ffffff0a000000 } |
Condition
7 of them and filesize < 868352In plain words (Heuristic)
- The file must be smaller than 868352 (a cheap guard that skips large files).
- At least 7 patterns in the rule must match.
Test this rule in your browser
Drop a file to scan it with this rule using YARA-X compiled to WebAssembly. Nothing is uploaded.
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: c3c383cd-5c27-526d-bf8a-de5ceb0bf642
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
Related rules
- MalwareMalpedia signator rules· Felix Bilstein - yara-signator at cocacoding dot com· 2026-05-04
- MalwareMalpedia signator rules· Felix Bilstein - yara-signator at cocacoding dot com· 2026-05-04
- MalwareMalpedia signator rules· Felix Bilstein - yara-signator at cocacoding dot com· 2026-05-04
- MalwareMalpedia signator rules· Felix Bilstein - yara-signator at cocacoding dot com· 2026-05-04
- MalwareMalpedia signator rules· Felix Bilstein - yara-signator at cocacoding dot com· 2026-05-04
- MalwareMalpedia signator rules· Felix Bilstein - yara-signator at cocacoding dot com· 2026-05-04
- MalwareMalpedia signator rules· Felix Bilstein - yara-signator at cocacoding dot com· 2026-05-04
- MalwareMalpedia signator rules· Felix Bilstein - yara-signator at cocacoding dot com· 2026-05-04