YARA · Malpedia signator rules
MALPEDIA_Win_Unidentified_098_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-098-auto.yarCreative Commons Attribution-ShareAlike 4.0
rule MALPEDIA_Win_Unidentified_098_Auto : FILE
{
meta:
= "autogenerated rule brought to you by yara-signator"
= "Felix Bilstein - yara-signator at cocacoding dot com"
= "c18aa87e-6608-590d-b3e6-6d59705994a8"
= "2026-05-04"
= "2026-05-18"
= "https://malpedia.caad.fkie.fraunhofer.de/details/win.unidentified_098"
= "https://github.com/malpedia/signator-rules//blob/c901f97b7df03e41917da74c2a84b04c227316c2/rules/win.unidentified_098_auto.yar#L1-L131"
= "N/A"
= "f4628b9d13189ec6d9ca2bc0fe1eb5e37f70ed32ec905431ab55d17bbf59580f"
= 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 = { c4c1781150e8 4c8b49f8 4d8948f8 4839ca 75e1 4883ea18 48b9abaaaaaaaaaaaa0a }
$sequence_1 = { e8???????? 488b7320 4c8b6318 4c39e6 742e 66662e0f1f840000000000 }
$sequence_2 = { ff15???????? 0fb606 6683f808 0f85affeffff 48837e0800 0f85a4feffff 41b847490000 }
$sequence_3 = { 4883c508 48d1ea 4d8d24d0 4989e8 4d29c8 4d39e1 7617 }
$sequence_4 = { 8844242b 4189542414 498b542440 493b542448 0f85c8fbffff 4989f0 4889d9 }
$sequence_5 = { 7449 8802 48ff4340 8b4314 83f80a 750c }
$sequence_6 = { 664539d1 7ce8 49ffc4 418808 4c39e6 75bd 488b13 }
$sequence_7 = { 488d47ff 4489ca 664539c8 7d18 885001 4889c1 66440fbe48ff }
$sequence_8 = { 7fa0 4881ff00000080 7c06 89f8 85c0 7991 48837b1800 }
$sequence_9 = { 4c8949f0 4c8b48d8 4c8949e8 4939f8 7591 4c29ef }
condition:
7 of them and filesize < 3345408
}
Strings (10 patterns)
| Identifier | Type | Value | Modifiers |
|---|---|---|---|
| $sequence_0 | hex | { c4c1781150e8 4c8b49f8 4d8948f8 4839ca 75e1 4883ea18 48b9abaaaaaaaaaaaa0a } | |
| $sequence_1 | hex | { e8???????? 488b7320 4c8b6318 4c39e6 742e 66662e0f1f840000000000 } | |
| $sequence_2 | hex | { ff15???????? 0fb606 6683f808 0f85affeffff 48837e0800 0f85a4feffff 41b847490000 } | |
| $sequence_3 | hex | { 4883c508 48d1ea 4d8d24d0 4989e8 4d29c8 4d39e1 7617 } | |
| $sequence_4 | hex | { 8844242b 4189542414 498b542440 493b542448 0f85c8fbffff 4989f0 4889d9 } | |
| $sequence_5 | hex | { 7449 8802 48ff4340 8b4314 83f80a 750c } | |
| $sequence_6 | hex | { 664539d1 7ce8 49ffc4 418808 4c39e6 75bd 488b13 } | |
| $sequence_7 | hex | { 488d47ff 4489ca 664539c8 7d18 885001 4889c1 66440fbe48ff } | |
| $sequence_8 | hex | { 7fa0 4881ff00000080 7c06 89f8 85c0 7991 48837b1800 } | |
| $sequence_9 | hex | { 4c8949f0 4c8b48d8 4c8949e8 4939f8 7591 4c29ef } |
Condition
7 of them and filesize < 3345408In plain words (Heuristic)
- The file must be smaller than 3345408 (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: c18aa87e-6608-590d-b3e6-6d59705994a8
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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