YARA · Malpedia signator rules
MALPEDIA_Win_Thunderx_Auto
autogenerated rule brought to you by yara-signator
MalwareThunderxMalpedia 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: Thunderx.
It defines 10 patterns (0 text, 10 hex, 0 regex).
Summary generated from the rule's metadata and condition.
Rule source
win-thunderx-auto.yarCreative Commons Attribution-ShareAlike 4.0
rule MALPEDIA_Win_Thunderx_Auto : FILE
{
meta:
= "autogenerated rule brought to you by yara-signator"
= "Felix Bilstein - yara-signator at cocacoding dot com"
= "74cc12c7-c26c-5b07-8bf3-e61c0c3737a0"
= "2026-05-04"
= "2026-05-18"
= "https://malpedia.caad.fkie.fraunhofer.de/details/win.thunderx"
= "https://github.com/malpedia/signator-rules//blob/c901f97b7df03e41917da74c2a84b04c227316c2/rules/win.thunderx_auto.yar#L1-L128"
= "N/A"
= "be1fae743a9b33f70688c51942e116572c878e8696fd03ea77455b3bd8028673"
= 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 = { 56 8b7508 8d5602 668b06 83c602 6685c0 }
$sequence_1 = { 8b4590 03c1 894d8c 6a0d 50 e8???????? }
$sequence_2 = { 50 e8???????? 8d4dd4 e8???????? 8d4dbc e8???????? 8bc3 }
$sequence_3 = { eb02 33db 8ac3 e8???????? c3 55 8bec }
$sequence_4 = { 8945f0 e8???????? 8bf8 6bc61c 8b750c 56 897df8 }
$sequence_5 = { 6a00 51 ff35???????? b8???????? 0f4305???????? 50 }
$sequence_6 = { a1???????? 33c4 8944241c 56 57 8bfa 8bf1 }
$sequence_7 = { 6a00 6a01 ff15???????? 8bf8 85ff 751a }
$sequence_8 = { 50 56 ffd7 85c0 7462 8b44240c }
$sequence_9 = { 894db0 8b048d701b4200 8975b4 8b440618 8b7514 03f2 }
condition:
7 of them and filesize < 319488
}
Strings (10 patterns)
| Identifier | Type | Value | Modifiers |
|---|---|---|---|
| $sequence_0 | hex | { 56 8b7508 8d5602 668b06 83c602 6685c0 } | |
| $sequence_1 | hex | { 8b4590 03c1 894d8c 6a0d 50 e8???????? } | |
| $sequence_2 | hex | { 50 e8???????? 8d4dd4 e8???????? 8d4dbc e8???????? 8bc3 } | |
| $sequence_3 | hex | { eb02 33db 8ac3 e8???????? c3 55 8bec } | |
| $sequence_4 | hex | { 8945f0 e8???????? 8bf8 6bc61c 8b750c 56 897df8 } | |
| $sequence_5 | hex | { 6a00 51 ff35???????? b8???????? 0f4305???????? 50 } | |
| $sequence_6 | hex | { a1???????? 33c4 8944241c 56 57 8bfa 8bf1 } | |
| $sequence_7 | hex | { 6a00 6a01 ff15???????? 8bf8 85ff 751a } | |
| $sequence_8 | hex | { 50 56 ffd7 85c0 7462 8b44240c } | |
| $sequence_9 | hex | { 894db0 8b048d701b4200 8975b4 8b440618 8b7514 03f2 } |
Condition
7 of them and filesize < 319488In plain words (Heuristic)
- The file must be smaller than 319488 (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: 74cc12c7-c26c-5b07-8bf3-e61c0c3737a0
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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