YARA · Malpedia signator rules
MALPEDIA_Win_Alreay_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: Alreay.
It defines 10 patterns (0 text, 10 hex, 0 regex).
Summary generated from the rule's metadata and condition.
Rule source
win-alreay-auto.yarCreative Commons Attribution-ShareAlike 4.0
rule MALPEDIA_Win_Alreay_Auto : FILE
{
meta:
= "autogenerated rule brought to you by yara-signator"
= "Felix Bilstein - yara-signator at cocacoding dot com"
= "d689cd57-86fc-54dc-904b-f3e4e8470710"
= "2026-05-04"
= "2026-05-18"
= "https://malpedia.caad.fkie.fraunhofer.de/details/win.alreay"
= "https://github.com/malpedia/signator-rules//blob/c901f97b7df03e41917da74c2a84b04c227316c2/rules/win.alreay_auto.yar#L1-L134"
= "N/A"
= "4a2ff06f065bb0eea8f7a3e2b1c268ec04fcdaba5f19f9ace7da110acd238224"
= 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 = { 895f2c 8b8608870000 8bd5 3bd0 7528 8b960c870000 8bc3 }
$sequence_1 = { 8b442404 8b88e4010000 85c9 746c 8b4c2408 85c9 7564 }
$sequence_2 = { 51 52 e8???????? 8bf0 83c40c 85f6 755a }
$sequence_3 = { 8d842430010000 51 8b4c242c 23f0 56 51 ff15???????? }
$sequence_4 = { eb38 b90b000000 bf???????? 8bf3 33c0 66f3a7 750a }
$sequence_5 = { 8bdd c1eb16 c1e50a 0bdd 8b6c2428 895c241c 8bd8 }
$sequence_6 = { ff15???????? 83c404 b800edffff 5f 5e 5d 5b }
$sequence_7 = { c3 8b742418 56 e8???????? 8b4d4c 83c404 8901 }
$sequence_8 = { 8b4c2460 89442404 89442408 8b442464 50 8d542408 51 }
$sequence_9 = { 8b4804 51 50 e8???????? 83c40c 85c0 7508 }
condition:
7 of them and filesize < 1867776
}
Strings (10 patterns)
| Identifier | Type | Value | Modifiers |
|---|---|---|---|
| $sequence_0 | hex | { 895f2c 8b8608870000 8bd5 3bd0 7528 8b960c870000 8bc3 } | |
| $sequence_1 | hex | { 8b442404 8b88e4010000 85c9 746c 8b4c2408 85c9 7564 } | |
| $sequence_2 | hex | { 51 52 e8???????? 8bf0 83c40c 85f6 755a } | |
| $sequence_3 | hex | { 8d842430010000 51 8b4c242c 23f0 56 51 ff15???????? } | |
| $sequence_4 | hex | { eb38 b90b000000 bf???????? 8bf3 33c0 66f3a7 750a } | |
| $sequence_5 | hex | { 8bdd c1eb16 c1e50a 0bdd 8b6c2428 895c241c 8bd8 } | |
| $sequence_6 | hex | { ff15???????? 83c404 b800edffff 5f 5e 5d 5b } | |
| $sequence_7 | hex | { c3 8b742418 56 e8???????? 8b4d4c 83c404 8901 } | |
| $sequence_8 | hex | { 8b4c2460 89442404 89442408 8b442464 50 8d542408 51 } | |
| $sequence_9 | hex | { 8b4804 51 50 e8???????? 83c40c 85c0 7508 } |
Condition
7 of them and filesize < 1867776In plain words (Heuristic)
- The file must be smaller than 1867776 (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: d689cd57-86fc-54dc-904b-f3e4e8470710
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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