YARA · Malpedia signator rules
MALPEDIA_Win_Nautilus_Auto
autogenerated rule brought to you by yara-signator
MalwareNautilusMalpedia 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: Nautilus.
It defines 10 patterns (0 text, 10 hex, 0 regex).
Summary generated from the rule's metadata and condition.
Rule source
win-nautilus-auto.yarCreative Commons Attribution-ShareAlike 4.0
rule MALPEDIA_Win_Nautilus_Auto : FILE
{
meta:
= "autogenerated rule brought to you by yara-signator"
= "Felix Bilstein - yara-signator at cocacoding dot com"
= "12b63073-89cd-53ef-a8ce-aa8e16743d23"
= "2026-05-04"
= "2026-05-18"
= "https://malpedia.caad.fkie.fraunhofer.de/details/win.nautilus"
= "https://github.com/malpedia/signator-rules//blob/c901f97b7df03e41917da74c2a84b04c227316c2/rules/win.nautilus_auto.yar#L1-L134"
= "N/A"
= "77958bdbf06b9c7e86d771c8b09dd74435c29e435d9ecf2b197ccdea69a21688"
= 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 = { ba0a000000 488bcb e8???????? 488bcb e8???????? 4885ff 0f8542ffffff }
$sequence_1 = { e8???????? 443bf6 7646 4d8b4d38 4c8b45e7 488d55df 4889542430 }
$sequence_2 = { 85c0 0f85ad000000 4c8bc6 488bd3 488bcb e8???????? e9???????? }
$sequence_3 = { e9???????? 4983c202 4d3bd3 0f8406ffffff 418a4a01 84c9 750e }
$sequence_4 = { 3da0010000 0f87e2000000 40f6c707 0f85d8000000 488d5948 488d1503370400 41b800100000 }
$sequence_5 = { ba01000000 41b800020000 e8???????? 488907 488d4310 488b5c2430 4883c420 }
$sequence_6 = { eb03 418bca 4863c2 4863c9 488d14c8 420fbe940aa0e50700 c1fa04 }
$sequence_7 = { 8a4742 a840 7420 24bf 884742 488b5c2430 488b6c2438 }
$sequence_8 = { 41bf01000000 488b4b10 ff15???????? 4585ff 7509 418d7f14 e9???????? }
$sequence_9 = { 85c0 7508 8d4603 e9???????? 488d55e0 488d0db0e00500 e8???????? }
condition:
7 of them and filesize < 1302528
}
Strings (10 patterns)
| Identifier | Type | Value | Modifiers |
|---|---|---|---|
| $sequence_0 | hex | { ba0a000000 488bcb e8???????? 488bcb e8???????? 4885ff 0f8542ffffff } | |
| $sequence_1 | hex | { e8???????? 443bf6 7646 4d8b4d38 4c8b45e7 488d55df 4889542430 } | |
| $sequence_2 | hex | { 85c0 0f85ad000000 4c8bc6 488bd3 488bcb e8???????? e9???????? } | |
| $sequence_3 | hex | { e9???????? 4983c202 4d3bd3 0f8406ffffff 418a4a01 84c9 750e } | |
| $sequence_4 | hex | { 3da0010000 0f87e2000000 40f6c707 0f85d8000000 488d5948 488d1503370400 41b800100000 } | |
| $sequence_5 | hex | { ba01000000 41b800020000 e8???????? 488907 488d4310 488b5c2430 4883c420 } | |
| $sequence_6 | hex | { eb03 418bca 4863c2 4863c9 488d14c8 420fbe940aa0e50700 c1fa04 } | |
| $sequence_7 | hex | { 8a4742 a840 7420 24bf 884742 488b5c2430 488b6c2438 } | |
| $sequence_8 | hex | { 41bf01000000 488b4b10 ff15???????? 4585ff 7509 418d7f14 e9???????? } | |
| $sequence_9 | hex | { 85c0 7508 8d4603 e9???????? 488d55e0 488d0db0e00500 e8???????? } |
Condition
7 of them and filesize < 1302528In plain words (Heuristic)
- The file must be smaller than 1302528 (a cheap guard that skips large files).
- At least 7 patterns in the rule must match.
Test this rule in your browser
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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: 12b63073-89cd-53ef-a8ce-aa8e16743d23
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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