YARA · Malpedia signator rules
MALPEDIA_Win_Fudmodule_Auto
autogenerated rule brought to you by yara-signator
MalwareFudmoduleMalpedia 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: Fudmodule.
It defines 16 patterns (0 text, 16 hex, 0 regex).
Summary generated from the rule's metadata and condition.
Rule source
win-fudmodule-auto.yarCreative Commons Attribution-ShareAlike 4.0
rule MALPEDIA_Win_Fudmodule_Auto : FILE
{
meta:
= "autogenerated rule brought to you by yara-signator"
= "Felix Bilstein - yara-signator at cocacoding dot com"
= "9482c0b3-e233-5fbb-b7f9-15eeefb47cbe"
= "2026-05-04"
= "2026-05-18"
= "https://malpedia.caad.fkie.fraunhofer.de/details/win.fudmodule"
= "https://github.com/malpedia/signator-rules//blob/c901f97b7df03e41917da74c2a84b04c227316c2/rules/win.fudmodule_auto.yar#L1-L170"
= "N/A"
= "598ae8f286914fa01f5c87db15072d98763fc039c41db282c8e23ad8eab8fdd6"
= 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 = { 4883c701 d2d8 fec0 f6d0 }
$sequence_1 = { 440fb74318 488d4c2420 4803d3 e8???????? 488d4c2420 e8???????? }
$sequence_2 = { 488d4c1005 493bce 7503 41ffc1 453bc8 7e27 }
$sequence_3 = { 488d6c24c9 4881ecd0000000 488b05???????? 4833c4 48894527 33c0 4533ed }
$sequence_4 = { 4889fa 66d3d1 66c1d90f 660fadc9 4889d9 f5 }
$sequence_5 = { 488d15cc390000 488bce 488905???????? ff15???????? }
$sequence_6 = { 6641398320010000 7664 8bce 4863c1 488d542434 440fb7440460 }
$sequence_7 = { 660fabf3 18c3 4883c420 660fb6da 4889c3 }
$sequence_8 = { d2e5 488b7518 660fa4f109 6689f1 88d5 66b937f3 }
$sequence_9 = { c7459c72546872 c745a065616400 ff15???????? 488d542448 488bc8 488bd8 }
$sequence_10 = { 488d442458 41b932000000 4c8bc7 4889442420 }
$sequence_11 = { f6c413 f5 84c0 e9???????? f5 }
$sequence_12 = { 0f878cb40100 f5 69d20a000000 f6c63b f9 }
$sequence_13 = { 7329 4863d1 488d0d40bc0000 488bc2 83e21f 48c1f805 }
$sequence_14 = { 66f7d6 6631fe 4889e6 66f7c12173 f9 }
$sequence_15 = { 6685f5 f6dd 8b8e8c000000 f8 6685fd e9???????? 660fa3c1 }
condition:
7 of them and filesize < 795648
}
Strings (16 patterns)
| Identifier | Type | Value | Modifiers |
|---|---|---|---|
| $sequence_0 | hex | { 4883c701 d2d8 fec0 f6d0 } | |
| $sequence_1 | hex | { 440fb74318 488d4c2420 4803d3 e8???????? 488d4c2420 e8???????? } | |
| $sequence_2 | hex | { 488d4c1005 493bce 7503 41ffc1 453bc8 7e27 } | |
| $sequence_3 | hex | { 488d6c24c9 4881ecd0000000 488b05???????? 4833c4 48894527 33c0 4533ed } | |
| $sequence_4 | hex | { 4889fa 66d3d1 66c1d90f 660fadc9 4889d9 f5 } | |
| $sequence_5 | hex | { 488d15cc390000 488bce 488905???????? ff15???????? } | |
| $sequence_6 | hex | { 6641398320010000 7664 8bce 4863c1 488d542434 440fb7440460 } | |
| $sequence_7 | hex | { 660fabf3 18c3 4883c420 660fb6da 4889c3 } | |
| $sequence_8 | hex | { d2e5 488b7518 660fa4f109 6689f1 88d5 66b937f3 } | |
| $sequence_9 | hex | { c7459c72546872 c745a065616400 ff15???????? 488d542448 488bc8 488bd8 } | |
| $sequence_10 | hex | { 488d442458 41b932000000 4c8bc7 4889442420 } | |
| $sequence_11 | hex | { f6c413 f5 84c0 e9???????? f5 } | |
| $sequence_12 | hex | { 0f878cb40100 f5 69d20a000000 f6c63b f9 } | |
| $sequence_13 | hex | { 7329 4863d1 488d0d40bc0000 488bc2 83e21f 48c1f805 } | |
| $sequence_14 | hex | { 66f7d6 6631fe 4889e6 66f7c12173 f9 } | |
| $sequence_15 | hex | { 6685f5 f6dd 8b8e8c000000 f8 6685fd e9???????? 660fa3c1 } |
Condition
7 of them and filesize < 795648In plain words (Heuristic)
- The file must be smaller than 795648 (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: 9482c0b3-e233-5fbb-b7f9-15eeefb47cbe
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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