YARA · Malpedia signator rules
MALPEDIA_Win_Ziyangrat_Auto
autogenerated rule brought to you by yara-signator
MalwareZiyangratMalpedia 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: Ziyangrat.
It defines 10 patterns (0 text, 10 hex, 0 regex).
Summary generated from the rule's metadata and condition.
Rule source
win-ziyangrat-auto.yarCreative Commons Attribution-ShareAlike 4.0
rule MALPEDIA_Win_Ziyangrat_Auto : FILE
{
meta:
= "autogenerated rule brought to you by yara-signator"
= "Felix Bilstein - yara-signator at cocacoding dot com"
= "25e524a5-eba0-5c32-83d3-3afde1b8e5de"
= "2026-05-04"
= "2026-05-18"
= "https://malpedia.caad.fkie.fraunhofer.de/details/win.ziyangrat"
= "https://github.com/malpedia/signator-rules//blob/c901f97b7df03e41917da74c2a84b04c227316c2/rules/win.ziyangrat_auto.yar#L1-L127"
= "N/A"
= "9108b91275ac2a1e4658df30ca253567f8a6e50bf090392d9fbc56695be2a574"
= 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 = { 0f8539ffffff 50 ff15???????? 8bfd 83c9ff 33c0 f2ae }
$sequence_1 = { 3bf1 8bf8 7e2a 8bd6 6a00 2bd1 }
$sequence_2 = { 7ce6 85ff 897c2418 896c2420 750a 5f 5e }
$sequence_3 = { 89742414 e8???????? b9fb030000 b820202020 bf???????? c644242800 f3ab }
$sequence_4 = { 85ff 897c2418 896c2420 750a 5f }
$sequence_5 = { 46 8d0c17 3bcb 7ce7 5f 5e }
$sequence_6 = { 8b4c241c 46 81e6ff0f0000 8d4101 25ff0f0000 }
$sequence_7 = { 5f 5e 5b 81c494000000 c3 8b9c24a4000000 }
$sequence_8 = { 89742448 e8???????? 5e 83f8ff 5b 7515 a1???????? }
$sequence_9 = { 8b7c240c 8b04bd10894000 8d1cbd10894000 3d00100000 0f84c8000000 8b04bd20094100 56 }
condition:
7 of them and filesize < 188416
}
Strings (10 patterns)
| Identifier | Type | Value | Modifiers |
|---|---|---|---|
| $sequence_0 | hex | { 0f8539ffffff 50 ff15???????? 8bfd 83c9ff 33c0 f2ae } | |
| $sequence_1 | hex | { 3bf1 8bf8 7e2a 8bd6 6a00 2bd1 } | |
| $sequence_2 | hex | { 7ce6 85ff 897c2418 896c2420 750a 5f 5e } | |
| $sequence_3 | hex | { 89742414 e8???????? b9fb030000 b820202020 bf???????? c644242800 f3ab } | |
| $sequence_4 | hex | { 85ff 897c2418 896c2420 750a 5f } | |
| $sequence_5 | hex | { 46 8d0c17 3bcb 7ce7 5f 5e } | |
| $sequence_6 | hex | { 8b4c241c 46 81e6ff0f0000 8d4101 25ff0f0000 } | |
| $sequence_7 | hex | { 5f 5e 5b 81c494000000 c3 8b9c24a4000000 } | |
| $sequence_8 | hex | { 89742448 e8???????? 5e 83f8ff 5b 7515 a1???????? } | |
| $sequence_9 | hex | { 8b7c240c 8b04bd10894000 8d1cbd10894000 3d00100000 0f84c8000000 8b04bd20094100 56 } |
Condition
7 of them and filesize < 188416In plain words (Heuristic)
- The file must be smaller than 188416 (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: 25e524a5-eba0-5c32-83d3-3afde1b8e5de
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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