YARA · Malpedia signator rules
MALPEDIA_Win_Hotwax_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: Hotwax.
It defines 10 patterns (0 text, 10 hex, 0 regex).
Summary generated from the rule's metadata and condition.
Rule source
win-hotwax-auto.yarCreative Commons Attribution-ShareAlike 4.0
rule MALPEDIA_Win_Hotwax_Auto : FILE
{
meta:
= "autogenerated rule brought to you by yara-signator"
= "Felix Bilstein - yara-signator at cocacoding dot com"
= "e7883842-4ab7-56d4-bdc0-e343dca93854"
= "2026-05-04"
= "2026-05-18"
= "https://malpedia.caad.fkie.fraunhofer.de/details/win.hotwax"
= "https://github.com/malpedia/signator-rules//blob/c901f97b7df03e41917da74c2a84b04c227316c2/rules/win.hotwax_auto.yar#L1-L111"
= "N/A"
= "eaf252828d91fc78ae2ff8650e17192fb78acb3462494b34fd0114c903c1e1d4"
= 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 = { 85c9 743f 83f902 7605 }
$sequence_1 = { 4863d9 488d2d57960000 488bfb 83e31f 48c1ff05 }
$sequence_2 = { 488d05f9b70000 c3 4053 4883ec20 }
$sequence_3 = { 418b8790000000 85c0 0f8491010000 488d2c02 }
$sequence_4 = { 48c1f805 4c8d0573710000 83e11f 486bc958 498b04c0 80640808fe }
$sequence_5 = { 49c1ff05 83e61f 4b8b8cf9a04b0100 486bf658 8a443108 a801 }
$sequence_6 = { b81a000000 eb76 33c9 488d158bb70000 }
$sequence_7 = { 8b430c 8905???????? 8bd7 4c8d0518b4ffff 89542420 }
$sequence_8 = { 41b803010000 c644243000 e8???????? 488bcb }
$sequence_9 = { 8a45d9 4b8b8cf8a04b0100 88443139 4b8b84f8a04b0100 8854303a }
condition:
7 of them and filesize < 198656
}
Strings (10 patterns)
| Identifier | Type | Value | Modifiers |
|---|---|---|---|
| $sequence_0 | hex | { 85c9 743f 83f902 7605 } | |
| $sequence_1 | hex | { 4863d9 488d2d57960000 488bfb 83e31f 48c1ff05 } | |
| $sequence_2 | hex | { 488d05f9b70000 c3 4053 4883ec20 } | |
| $sequence_3 | hex | { 418b8790000000 85c0 0f8491010000 488d2c02 } | |
| $sequence_4 | hex | { 48c1f805 4c8d0573710000 83e11f 486bc958 498b04c0 80640808fe } | |
| $sequence_5 | hex | { 49c1ff05 83e61f 4b8b8cf9a04b0100 486bf658 8a443108 a801 } | |
| $sequence_6 | hex | { b81a000000 eb76 33c9 488d158bb70000 } | |
| $sequence_7 | hex | { 8b430c 8905???????? 8bd7 4c8d0518b4ffff 89542420 } | |
| $sequence_8 | hex | { 41b803010000 c644243000 e8???????? 488bcb } | |
| $sequence_9 | hex | { 8a45d9 4b8b8cf8a04b0100 88443139 4b8b84f8a04b0100 8854303a } |
Condition
7 of them and filesize < 198656In plain words (Heuristic)
- The file must be smaller than 198656 (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: e7883842-4ab7-56d4-bdc0-e343dca93854
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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