YARA · Malpedia signator rules
MALPEDIA_Win_Tuoni_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: Tuoni.
It defines 10 patterns (0 text, 10 hex, 0 regex).
Summary generated from the rule's metadata and condition.
Rule source
win-tuoni-auto.yarCreative Commons Attribution-ShareAlike 4.0
rule MALPEDIA_Win_Tuoni_Auto : FILE
{
meta:
= "autogenerated rule brought to you by yara-signator"
= "Felix Bilstein - yara-signator at cocacoding dot com"
= "36fc364c-9cb3-5328-8f63-30c51c40d7e3"
= "2026-05-04"
= "2026-05-18"
= "https://malpedia.caad.fkie.fraunhofer.de/details/win.tuoni"
= "https://github.com/malpedia/signator-rules//blob/c901f97b7df03e41917da74c2a84b04c227316c2/rules/win.tuoni_auto.yar#L1-L132"
= "N/A"
= "f653978f00063dabfe4477460512f3d716f8d3cd7dc968eba11319c01fdfd420"
= 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 = { 8b4508 8bc8 83e03f c1f906 6bd038 8b0c8d30464500 }
$sequence_1 = { e9???????? 8b4330 8b4804 894dcc 8b01 ff5004 8365fc00 }
$sequence_2 = { 8d45f4 64a300000000 894df0 8b8578040000 8b3d???????? 894548 }
$sequence_3 = { 59 8945e4 c645fc04 85c0 7416 6a40 56 }
$sequence_4 = { 53 ff7500 85c0 7515 e8???????? 59 59 }
$sequence_5 = { 7510 6a01 ff15???????? 6a01 ff15???????? 8d45e0 50 }
$sequence_6 = { 7443 ff750c 8d4df8 56 e8???????? 8b45fc ff4604 }
$sequence_7 = { e8???????? 83ec18 c745fc01000000 8d4520 8965f0 8bcc 50 }
$sequence_8 = { 66894608 895e20 895dfc 895e24 8d4e28 c645fc01 e8???????? }
$sequence_9 = { 031c8d30464500 eb0c 8bc8 8bd0 c1f906 8bdf 83e23f }
condition:
7 of them and filesize < 734208
}
Strings (10 patterns)
| Identifier | Type | Value | Modifiers |
|---|---|---|---|
| $sequence_0 | hex | { 8b4508 8bc8 83e03f c1f906 6bd038 8b0c8d30464500 } | |
| $sequence_1 | hex | { e9???????? 8b4330 8b4804 894dcc 8b01 ff5004 8365fc00 } | |
| $sequence_2 | hex | { 8d45f4 64a300000000 894df0 8b8578040000 8b3d???????? 894548 } | |
| $sequence_3 | hex | { 59 8945e4 c645fc04 85c0 7416 6a40 56 } | |
| $sequence_4 | hex | { 53 ff7500 85c0 7515 e8???????? 59 59 } | |
| $sequence_5 | hex | { 7510 6a01 ff15???????? 6a01 ff15???????? 8d45e0 50 } | |
| $sequence_6 | hex | { 7443 ff750c 8d4df8 56 e8???????? 8b45fc ff4604 } | |
| $sequence_7 | hex | { e8???????? 83ec18 c745fc01000000 8d4520 8965f0 8bcc 50 } | |
| $sequence_8 | hex | { 66894608 895e20 895dfc 895e24 8d4e28 c645fc01 e8???????? } | |
| $sequence_9 | hex | { 031c8d30464500 eb0c 8bc8 8bd0 c1f906 8bdf 83e23f } |
Condition
7 of them and filesize < 734208In plain words (Heuristic)
- The file must be smaller than 734208 (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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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: 36fc364c-9cb3-5328-8f63-30c51c40d7e3
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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