YARA · Malpedia signator rules
MALPEDIA_Win_Unidentified_105_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
It defines 10 patterns (0 text, 10 hex, 0 regex).
Summary generated from the rule's metadata and condition.
Rule source
win-unidentified-105-auto.yarCreative Commons Attribution-ShareAlike 4.0
rule MALPEDIA_Win_Unidentified_105_Auto : FILE
{
meta:
= "autogenerated rule brought to you by yara-signator"
= "Felix Bilstein - yara-signator at cocacoding dot com"
= "f2025884-bdde-5892-a153-091931b9af22"
= "2026-05-04"
= "2026-05-18"
= "https://malpedia.caad.fkie.fraunhofer.de/details/win.unidentified_105"
= "https://github.com/malpedia/signator-rules//blob/c901f97b7df03e41917da74c2a84b04c227316c2/rules/win.unidentified_105_auto.yar#L1-L117"
= "N/A"
= "18a1bd6dfaab243848121d17520bc7bf66bbc668f3356ff46f34ae2dff2b80ea"
= 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 = { 50 e8???????? a1???????? 6800020000 }
$sequence_1 = { 6800002000 e8???????? 6800002000 8bd8 57 53 e8???????? }
$sequence_2 = { 8bd0 a1???????? 8d7801 8a08 40 84c9 75f9 }
$sequence_3 = { c785a8feffff00040000 e8???????? 6800040000 8985c0feffff c785c4feffff00040000 }
$sequence_4 = { 7410 8d9560ffffff 52 ffd0 }
$sequence_5 = { e8???????? 8b85f8feffff 8b8de0feffff 83c40c 8901 3d00002000 }
$sequence_6 = { a1???????? 89421c eb14 83f801 }
$sequence_7 = { 40 84d2 75f9 8d542414 52 }
$sequence_8 = { 75f9 2b55f0 8d45f8 50 53 52 }
$sequence_9 = { eb13 83f801 750e a1???????? 8b0d???????? }
condition:
7 of them and filesize < 253952
}
Strings (10 patterns)
| Identifier | Type | Value | Modifiers |
|---|---|---|---|
| $sequence_0 | hex | { 50 e8???????? a1???????? 6800020000 } | |
| $sequence_1 | hex | { 6800002000 e8???????? 6800002000 8bd8 57 53 e8???????? } | |
| $sequence_2 | hex | { 8bd0 a1???????? 8d7801 8a08 40 84c9 75f9 } | |
| $sequence_3 | hex | { c785a8feffff00040000 e8???????? 6800040000 8985c0feffff c785c4feffff00040000 } | |
| $sequence_4 | hex | { 7410 8d9560ffffff 52 ffd0 } | |
| $sequence_5 | hex | { e8???????? 8b85f8feffff 8b8de0feffff 83c40c 8901 3d00002000 } | |
| $sequence_6 | hex | { a1???????? 89421c eb14 83f801 } | |
| $sequence_7 | hex | { 40 84d2 75f9 8d542414 52 } | |
| $sequence_8 | hex | { 75f9 2b55f0 8d45f8 50 53 52 } | |
| $sequence_9 | hex | { eb13 83f801 750e a1???????? 8b0d???????? } |
Condition
7 of them and filesize < 253952In plain words (Heuristic)
- The file must be smaller than 253952 (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: f2025884-bdde-5892-a153-091931b9af22
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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