YARA · Malpedia signator rules
MALPEDIA_Win_Madmax_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: Madmax.
It defines 10 patterns (0 text, 10 hex, 0 regex).
Summary generated from the rule's metadata and condition.
Rule source
win-madmax-auto.yarCreative Commons Attribution-ShareAlike 4.0
rule MALPEDIA_Win_Madmax_Auto : FILE
{
meta:
= "autogenerated rule brought to you by yara-signator"
= "Felix Bilstein - yara-signator at cocacoding dot com"
= "a885561a-5c30-5ea2-b33b-6f61469226de"
= "2026-05-04"
= "2026-05-18"
= "https://malpedia.caad.fkie.fraunhofer.de/details/win.madmax"
= "https://github.com/malpedia/signator-rules//blob/c901f97b7df03e41917da74c2a84b04c227316c2/rules/win.madmax_auto.yar#L1-L134"
= "N/A"
= "bd0d35721058295e1505b2a5041556658b23c13113e7678219e42884319ffc8f"
= 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 = { ef 40 41 ac 285977 a4 a1???????? }
$sequence_1 = { ee 7fb8 3add ab e06d 9e 9d }
$sequence_2 = { dde8 47 6f cd6c 4b 2ed8a8dbd419a5 90 }
$sequence_3 = { 91 6a32 dc416f bb02fb8d4f 4c 39e2 1146d8 }
$sequence_4 = { ae 5e 8b14d1 3c57 8c1b 55 a3???????? }
$sequence_5 = { c1c5d4 c0e578 7b34 58 27 cd21 90 }
$sequence_6 = { c5a62706f92c bfbe20b97c ee 73dd d0e7 b7ec 9d }
$sequence_7 = { d2b100e15df3 93 395fa1 a1???????? a7 5d 95 }
$sequence_8 = { f605????????f3 757c b632 6b8e7b51885a74 b0e5 0d97cfb063 f26e }
$sequence_9 = { f5 844296 ec 8603 98 a9e110229b a8d0 }
condition:
7 of them and filesize < 3227648
}
Strings (10 patterns)
| Identifier | Type | Value | Modifiers |
|---|---|---|---|
| $sequence_0 | hex | { ef 40 41 ac 285977 a4 a1???????? } | |
| $sequence_1 | hex | { ee 7fb8 3add ab e06d 9e 9d } | |
| $sequence_2 | hex | { dde8 47 6f cd6c 4b 2ed8a8dbd419a5 90 } | |
| $sequence_3 | hex | { 91 6a32 dc416f bb02fb8d4f 4c 39e2 1146d8 } | |
| $sequence_4 | hex | { ae 5e 8b14d1 3c57 8c1b 55 a3???????? } | |
| $sequence_5 | hex | { c1c5d4 c0e578 7b34 58 27 cd21 90 } | |
| $sequence_6 | hex | { c5a62706f92c bfbe20b97c ee 73dd d0e7 b7ec 9d } | |
| $sequence_7 | hex | { d2b100e15df3 93 395fa1 a1???????? a7 5d 95 } | |
| $sequence_8 | hex | { f605????????f3 757c b632 6b8e7b51885a74 b0e5 0d97cfb063 f26e } | |
| $sequence_9 | hex | { f5 844296 ec 8603 98 a9e110229b a8d0 } |
Condition
7 of them and filesize < 3227648In plain words (Heuristic)
- The file must be smaller than 3227648 (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: a885561a-5c30-5ea2-b33b-6f61469226de
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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