YARA · Malpedia signator rules
MALPEDIA_Win_Rincux_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
Associated malware family: Rincux.
It defines 10 patterns (0 text, 10 hex, 0 regex).
Summary generated from the rule's metadata and condition.
Rule source
win-rincux-auto.yarCreative Commons Attribution-ShareAlike 4.0
rule MALPEDIA_Win_Rincux_Auto : FILE
{
meta:
= "autogenerated rule brought to you by yara-signator"
= "Felix Bilstein - yara-signator at cocacoding dot com"
= "1ebc8c5d-ef18-5761-8afe-438a7a3d23e6"
= "2026-05-04"
= "2026-05-18"
= "https://malpedia.caad.fkie.fraunhofer.de/details/win.rincux"
= "https://github.com/malpedia/signator-rules//blob/c901f97b7df03e41917da74c2a84b04c227316c2/rules/win.rincux_auto.yar#L1-L132"
= "N/A"
= "a7c555ad4c400b92307554565b2dd8f3f76414782040da1e8eee3f25b55db515"
= 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 = { 83c504 83c304 83c204 e9???????? 8b4c2420 8bfb 2bf9 }
$sequence_1 = { c644241a73 c644241b6b c644241c79 c644241d00 ffd6 68???????? 68???????? }
$sequence_2 = { c645e974 c645ea61 c645eb72 c645ec74 c645ed00 c645dc54 c645dd53 }
$sequence_3 = { f3a5 50 899c24a8000000 e8???????? b905000000 8d742420 8dbc2480000000 }
$sequence_4 = { 8b4c2414 a3???????? 85c0 890d???????? 7418 6a00 6a00 }
$sequence_5 = { c70315000000 894348 8b4348 85c0 7468 3be8 732f }
$sequence_6 = { 8b7218 8d1401 3bd6 7604 2bf0 8bce 8b54243c }
$sequence_7 = { 8b8c2450010000 8b1d???????? 81e1ffff0000 51 56 68???????? }
$sequence_8 = { 03e8 03d7 896e08 895614 8b4b1c 89442438 8b4308 }
$sequence_9 = { 5e 5d 5b 81c404020000 c20400 8b9c2418020000 }
condition:
7 of them and filesize < 392192
}
Strings (10 patterns)
| Identifier | Type | Value | Modifiers |
|---|---|---|---|
| $sequence_0 | hex | { 83c504 83c304 83c204 e9???????? 8b4c2420 8bfb 2bf9 } | |
| $sequence_1 | hex | { c644241a73 c644241b6b c644241c79 c644241d00 ffd6 68???????? 68???????? } | |
| $sequence_2 | hex | { c645e974 c645ea61 c645eb72 c645ec74 c645ed00 c645dc54 c645dd53 } | |
| $sequence_3 | hex | { f3a5 50 899c24a8000000 e8???????? b905000000 8d742420 8dbc2480000000 } | |
| $sequence_4 | hex | { 8b4c2414 a3???????? 85c0 890d???????? 7418 6a00 6a00 } | |
| $sequence_5 | hex | { c70315000000 894348 8b4348 85c0 7468 3be8 732f } | |
| $sequence_6 | hex | { 8b7218 8d1401 3bd6 7604 2bf0 8bce 8b54243c } | |
| $sequence_7 | hex | { 8b8c2450010000 8b1d???????? 81e1ffff0000 51 56 68???????? } | |
| $sequence_8 | hex | { 03e8 03d7 896e08 895614 8b4b1c 89442438 8b4308 } | |
| $sequence_9 | hex | { 5e 5d 5b 81c404020000 c20400 8b9c2418020000 } |
Condition
7 of them and filesize < 392192In plain words (Heuristic)
- The file must be smaller than 392192 (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: 1ebc8c5d-ef18-5761-8afe-438a7a3d23e6
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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