YARA · Malpedia signator rules
MALPEDIA_Win_Kurton_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: Kurton.
It defines 10 patterns (0 text, 10 hex, 0 regex).
Summary generated from the rule's metadata and condition.
Rule source
win-kurton-auto.yarCreative Commons Attribution-ShareAlike 4.0
rule MALPEDIA_Win_Kurton_Auto : FILE
{
meta:
= "autogenerated rule brought to you by yara-signator"
= "Felix Bilstein - yara-signator at cocacoding dot com"
= "9218ba89-d90e-5a9b-b8c0-02ddc17f8779"
= "2026-05-04"
= "2026-05-18"
= "https://malpedia.caad.fkie.fraunhofer.de/details/win.kurton"
= "https://github.com/malpedia/signator-rules//blob/c901f97b7df03e41917da74c2a84b04c227316c2/rules/win.kurton_auto.yar#L1-L125"
= "N/A"
= "04f8fb4e13528ed01ba163c5b7384c9ede8dd74692bdabb6ed979f09a3db2fb3"
= 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 = { 8d4c2418 e8???????? bf???????? 83c9ff 33c0 8b54241c f2ae }
$sequence_1 = { eb23 33c0 8a8718cc0110 668b9486760a0000 66d3e2 660996b0160000 83c103 }
$sequence_2 = { 84c0 7431 8b4704 3bdd b9???????? 761b }
$sequence_3 = { 33c0 8dbc2465040000 889c2464040000 f3ab 3bf3 66ab }
$sequence_4 = { e8???????? 3d00040000 8d4c2414 7618 e8???????? }
$sequence_5 = { e8???????? 83c424 8d442404 68???????? }
$sequence_6 = { c70000000000 6844030000 c7450000000000 e8???????? 8bb42430010000 8bd8 b984000000 }
$sequence_7 = { 896f0c 8a542413 8d4e30 55 c644242801 8811 e8???????? }
$sequence_8 = { 83c130 e9???????? 8b4df0 83c150 e9???????? 8b4df0 83c160 }
$sequence_9 = { 8b8694000000 50 ffd7 8bce e8???????? }
condition:
7 of them and filesize < 344064
}
Strings (10 patterns)
| Identifier | Type | Value | Modifiers |
|---|---|---|---|
| $sequence_0 | hex | { 8d4c2418 e8???????? bf???????? 83c9ff 33c0 8b54241c f2ae } | |
| $sequence_1 | hex | { eb23 33c0 8a8718cc0110 668b9486760a0000 66d3e2 660996b0160000 83c103 } | |
| $sequence_2 | hex | { 84c0 7431 8b4704 3bdd b9???????? 761b } | |
| $sequence_3 | hex | { 33c0 8dbc2465040000 889c2464040000 f3ab 3bf3 66ab } | |
| $sequence_4 | hex | { e8???????? 3d00040000 8d4c2414 7618 e8???????? } | |
| $sequence_5 | hex | { e8???????? 83c424 8d442404 68???????? } | |
| $sequence_6 | hex | { c70000000000 6844030000 c7450000000000 e8???????? 8bb42430010000 8bd8 b984000000 } | |
| $sequence_7 | hex | { 896f0c 8a542413 8d4e30 55 c644242801 8811 e8???????? } | |
| $sequence_8 | hex | { 83c130 e9???????? 8b4df0 83c150 e9???????? 8b4df0 83c160 } | |
| $sequence_9 | hex | { 8b8694000000 50 ffd7 8bce e8???????? } |
Condition
7 of them and filesize < 344064In plain words (Heuristic)
- The file must be smaller than 344064 (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: 9218ba89-d90e-5a9b-b8c0-02ddc17f8779
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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