YARA · Malpedia signator rules
MALPEDIA_Win_Dragonbreath_Auto
autogenerated rule brought to you by yara-signator
MalwareDragonbreathMalpedia 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: Dragonbreath.
It defines 10 patterns (0 text, 10 hex, 0 regex).
Summary generated from the rule's metadata and condition.
Rule source
win-dragonbreath-auto.yarCreative Commons Attribution-ShareAlike 4.0
rule MALPEDIA_Win_Dragonbreath_Auto : FILE
{
meta:
= "autogenerated rule brought to you by yara-signator"
= "Felix Bilstein - yara-signator at cocacoding dot com"
= "859cc782-92e3-5d0e-b557-fd5ba7e1d621"
= "2026-05-04"
= "2026-05-18"
= "https://malpedia.caad.fkie.fraunhofer.de/details/win.dragonbreath"
= "https://github.com/malpedia/signator-rules//blob/c901f97b7df03e41917da74c2a84b04c227316c2/rules/win.dragonbreath_auto.yar#L1-L118"
= "N/A"
= "47f702ba42042822f712ae9d928530e0b75a1ec97ba6f12966ed5250de0cf75a"
= 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 = { c745e000000000 68???????? ff15???????? 8bf0 }
$sequence_1 = { 85ff 7507 c605????????da 85db 7409 53 e8???????? }
$sequence_2 = { 8d9541feffff 52 e8???????? 83c40c }
$sequence_3 = { 57 68???????? ff15???????? 8b1d???????? 8bf0 68???????? }
$sequence_4 = { 6a00 6a00 c686f000000001 ff15???????? }
$sequence_5 = { 0175fc 6a1e 81c700200000 ff15???????? 8b45f8 2d00200000 8945f8 }
$sequence_6 = { 8d5601 52 e8???????? a0???????? 83c40c 57 56 }
$sequence_7 = { 83c408 85c0 75e7 50 68???????? ff15???????? }
$sequence_8 = { e8???????? 68???????? ff15???????? 8b7508 c7465c988f0110 }
$sequence_9 = { 8d4f04 51 ff15???????? c70794160000 }
condition:
7 of them and filesize < 295936
}
Strings (10 patterns)
| Identifier | Type | Value | Modifiers |
|---|---|---|---|
| $sequence_0 | hex | { c745e000000000 68???????? ff15???????? 8bf0 } | |
| $sequence_1 | hex | { 85ff 7507 c605????????da 85db 7409 53 e8???????? } | |
| $sequence_2 | hex | { 8d9541feffff 52 e8???????? 83c40c } | |
| $sequence_3 | hex | { 57 68???????? ff15???????? 8b1d???????? 8bf0 68???????? } | |
| $sequence_4 | hex | { 6a00 6a00 c686f000000001 ff15???????? } | |
| $sequence_5 | hex | { 0175fc 6a1e 81c700200000 ff15???????? 8b45f8 2d00200000 8945f8 } | |
| $sequence_6 | hex | { 8d5601 52 e8???????? a0???????? 83c40c 57 56 } | |
| $sequence_7 | hex | { 83c408 85c0 75e7 50 68???????? ff15???????? } | |
| $sequence_8 | hex | { e8???????? 68???????? ff15???????? 8b7508 c7465c988f0110 } | |
| $sequence_9 | hex | { 8d4f04 51 ff15???????? c70794160000 } |
Condition
7 of them and filesize < 295936In plain words (Heuristic)
- The file must be smaller than 295936 (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: 859cc782-92e3-5d0e-b557-fd5ba7e1d621
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