YARA · Malpedia signator rules
MALPEDIA_Win_Unidentified_041_Auto
autogenerated rule brought to you by yara-signator
- 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
It defines 10 patterns (0 text, 10 hex, 0 regex).
Summary generated from the rule's metadata and condition.
Rule source
win-unidentified-041-auto.yarCreative Commons Attribution-ShareAlike 4.0
rule MALPEDIA_Win_Unidentified_041_Auto : FILE
{
meta:
= "autogenerated rule brought to you by yara-signator"
= "Felix Bilstein - yara-signator at cocacoding dot com"
= "c94896cf-dff1-58d2-9557-85d145802d83"
= "2026-05-04"
= "2026-05-18"
= "https://malpedia.caad.fkie.fraunhofer.de/details/win.unidentified_041"
= "https://github.com/malpedia/signator-rules//blob/c901f97b7df03e41917da74c2a84b04c227316c2/rules/win.unidentified_041_auto.yar#L1-L134"
= "N/A"
= "c911ec4ebf90b9860f0b3869734b22d8292c9282da202086c19a7064e6360107"
= 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 = { 50 53 e8???????? 83c430 33f6 eb24 837c245408 }
$sequence_1 = { 837c245410 720c ff742440 e8???????? 83c404 8b4c2438 83c8ff }
$sequence_2 = { e8???????? 59 ff742410 8bd0 c68424e48300000c 8d4c2458 e8???????? }
$sequence_3 = { 895dcc e8???????? 83f8ff b9???????? be???????? 0f45f1 56 }
$sequence_4 = { 884daf eb03 8a4daf 8b7618 8975a4 85f6 75b4 }
$sequence_5 = { e8???????? 8d4c2444 83c418 6a00 6a01 e8???????? 8b4c2448 }
$sequence_6 = { eb0a c70600000000 c6460401 8b5d9c 85db 0f859f000000 8b5da0 }
$sequence_7 = { 895dfc 391cfd28f64700 7518 53 68a00f0000 56 e8???????? }
$sequence_8 = { c645fc08 837a1408 7202 8b12 8b856cffffff 8b0d???????? ff707c }
$sequence_9 = { 8b4754 8d4f04 ff7768 89474c 8907 e8???????? ff7768 }
condition:
7 of them and filesize < 1097728
}
Strings (10 patterns)
| Identifier | Type | Value | Modifiers |
|---|---|---|---|
| $sequence_0 | hex | { 50 53 e8???????? 83c430 33f6 eb24 837c245408 } | |
| $sequence_1 | hex | { 837c245410 720c ff742440 e8???????? 83c404 8b4c2438 83c8ff } | |
| $sequence_2 | hex | { e8???????? 59 ff742410 8bd0 c68424e48300000c 8d4c2458 e8???????? } | |
| $sequence_3 | hex | { 895dcc e8???????? 83f8ff b9???????? be???????? 0f45f1 56 } | |
| $sequence_4 | hex | { 884daf eb03 8a4daf 8b7618 8975a4 85f6 75b4 } | |
| $sequence_5 | hex | { e8???????? 8d4c2444 83c418 6a00 6a01 e8???????? 8b4c2448 } | |
| $sequence_6 | hex | { eb0a c70600000000 c6460401 8b5d9c 85db 0f859f000000 8b5da0 } | |
| $sequence_7 | hex | { 895dfc 391cfd28f64700 7518 53 68a00f0000 56 e8???????? } | |
| $sequence_8 | hex | { c645fc08 837a1408 7202 8b12 8b856cffffff 8b0d???????? ff707c } | |
| $sequence_9 | hex | { 8b4754 8d4f04 ff7768 89474c 8907 e8???????? ff7768 } |
Condition
7 of them and filesize < 1097728In plain words (Heuristic)
- The file must be smaller than 1097728 (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: c94896cf-dff1-58d2-9557-85d145802d83
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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