YARA · Malpedia signator rules
MALPEDIA_Win_Nightclub_Auto
autogenerated rule brought to you by yara-signator
MalwareNightclubMalpedia 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: Nightclub.
It defines 10 patterns (0 text, 10 hex, 0 regex).
Summary generated from the rule's metadata and condition.
Rule source
win-nightclub-auto.yarCreative Commons Attribution-ShareAlike 4.0
rule MALPEDIA_Win_Nightclub_Auto : FILE
{
meta:
= "autogenerated rule brought to you by yara-signator"
= "Felix Bilstein - yara-signator at cocacoding dot com"
= "937b722b-651c-56ba-b5c7-4f024c9cb8f8"
= "2026-05-04"
= "2026-05-18"
= "https://malpedia.caad.fkie.fraunhofer.de/details/win.nightclub"
= "https://github.com/malpedia/signator-rules//blob/c901f97b7df03e41917da74c2a84b04c227316c2/rules/win.nightclub_auto.yar#L1-L128"
= "N/A"
= "60417de16009e8b881c5dfd286409532e83e459a12973d53e45031e48f397d39"
= 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 = { 8b8578ffffff 895dc4 895dc0 c745b4dc440110 89bd70ffffff 3bc3 740a }
$sequence_1 = { 8b06 8b5008 68???????? ffd2 6a78 }
$sequence_2 = { ff15???????? 68???????? e8???????? 83c404 56 68???????? b9???????? }
$sequence_3 = { ffd3 8b8d08fcffff 51 ffd3 8b950cfcffff 52 ffd3 }
$sequence_4 = { f7d9 0bc8 51 ff15???????? 8bd8 8b4608 }
$sequence_5 = { 33c0 668903 8b16 8b4204 83c404 53 8bce }
$sequence_6 = { ebf3 c6043000 89850cfcffff 8bbdccfbffff 85ff 0f8489080000 }
$sequence_7 = { 384dfa 0f94c0 83c00a 8b4dfc 33cd e8???????? 8be5 }
$sequence_8 = { 0bc8 51 ff15???????? 8bf0 c70600000000 8b07 }
$sequence_9 = { c1e81f 03c2 8945f0 83f801 7707 c745f001000000 }
condition:
7 of them and filesize < 247808
}
Strings (10 patterns)
| Identifier | Type | Value | Modifiers |
|---|---|---|---|
| $sequence_0 | hex | { 8b8578ffffff 895dc4 895dc0 c745b4dc440110 89bd70ffffff 3bc3 740a } | |
| $sequence_1 | hex | { 8b06 8b5008 68???????? ffd2 6a78 } | |
| $sequence_2 | hex | { ff15???????? 68???????? e8???????? 83c404 56 68???????? b9???????? } | |
| $sequence_3 | hex | { ffd3 8b8d08fcffff 51 ffd3 8b950cfcffff 52 ffd3 } | |
| $sequence_4 | hex | { f7d9 0bc8 51 ff15???????? 8bd8 8b4608 } | |
| $sequence_5 | hex | { 33c0 668903 8b16 8b4204 83c404 53 8bce } | |
| $sequence_6 | hex | { ebf3 c6043000 89850cfcffff 8bbdccfbffff 85ff 0f8489080000 } | |
| $sequence_7 | hex | { 384dfa 0f94c0 83c00a 8b4dfc 33cd e8???????? 8be5 } | |
| $sequence_8 | hex | { 0bc8 51 ff15???????? 8bf0 c70600000000 8b07 } | |
| $sequence_9 | hex | { c1e81f 03c2 8945f0 83f801 7707 c745f001000000 } |
Condition
7 of them and filesize < 247808In plain words (Heuristic)
- The file must be smaller than 247808 (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: 937b722b-651c-56ba-b5c7-4f024c9cb8f8
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