YARA · Malpedia signator rules
MALPEDIA_Win_Moonwind_Auto
autogenerated rule brought to you by yara-signator
MalwareMoonwindMalpedia 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: Moonwind.
It defines 10 patterns (0 text, 10 hex, 0 regex).
Summary generated from the rule's metadata and condition.
Rule source
win-moonwind-auto.yarCreative Commons Attribution-ShareAlike 4.0
rule MALPEDIA_Win_Moonwind_Auto : FILE
{
meta:
= "autogenerated rule brought to you by yara-signator"
= "Felix Bilstein - yara-signator at cocacoding dot com"
= "1041560a-82e8-5446-a4d2-998ea5c14e36"
= "2026-05-04"
= "2026-05-18"
= "https://malpedia.caad.fkie.fraunhofer.de/details/win.moonwind"
= "https://github.com/malpedia/signator-rules//blob/c901f97b7df03e41917da74c2a84b04c227316c2/rules/win.moonwind_auto.yar#L1-L132"
= "N/A"
= "c7d796397da6e928fc158bf0b98bdc7e0c4b36ff553dd6b2d6f959216357cd38"
= 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 = { 7409 53 e8???????? 83c404 837dcc00 0f84250b0000 }
$sequence_1 = { 8b5b38 83c304 895dbc 8b5d08 8b1b 83c308 895db8 }
$sequence_2 = { 52 b805000080 0fa2 8945c8 895dcc 894dd0 }
$sequence_3 = { 6802000000 bb60020000 e8???????? 83c41c e9???????? 6804000080 6a00 }
$sequence_4 = { 3965ec 740d 6806000000 e8???????? 83c404 8b5d10 668903 }
$sequence_5 = { 8bc8 53 e8???????? 8b8424e4010000 83f804 7509 c7450405000000 }
$sequence_6 = { 8bf8 83c708 8b45d0 c1e002 03f8 8b45d8 57 }
$sequence_7 = { c3 55 8bec 81ec34000000 6808000000 e8???????? 83c404 }
$sequence_8 = { 5e ab b909000000 f3a5 ad 56 57 }
$sequence_9 = { 33c0 bf???????? 8d3452 f3ab c1e604 aa 8d9ed8444700 }
condition:
7 of them and filesize < 1417216
}
Strings (10 patterns)
| Identifier | Type | Value | Modifiers |
|---|---|---|---|
| $sequence_0 | hex | { 7409 53 e8???????? 83c404 837dcc00 0f84250b0000 } | |
| $sequence_1 | hex | { 8b5b38 83c304 895dbc 8b5d08 8b1b 83c308 895db8 } | |
| $sequence_2 | hex | { 52 b805000080 0fa2 8945c8 895dcc 894dd0 } | |
| $sequence_3 | hex | { 6802000000 bb60020000 e8???????? 83c41c e9???????? 6804000080 6a00 } | |
| $sequence_4 | hex | { 3965ec 740d 6806000000 e8???????? 83c404 8b5d10 668903 } | |
| $sequence_5 | hex | { 8bc8 53 e8???????? 8b8424e4010000 83f804 7509 c7450405000000 } | |
| $sequence_6 | hex | { 8bf8 83c708 8b45d0 c1e002 03f8 8b45d8 57 } | |
| $sequence_7 | hex | { c3 55 8bec 81ec34000000 6808000000 e8???????? 83c404 } | |
| $sequence_8 | hex | { 5e ab b909000000 f3a5 ad 56 57 } | |
| $sequence_9 | hex | { 33c0 bf???????? 8d3452 f3ab c1e604 aa 8d9ed8444700 } |
Condition
7 of them and filesize < 1417216In plain words (Heuristic)
- The file must be smaller than 1417216 (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: 1041560a-82e8-5446-a4d2-998ea5c14e36
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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