YARA · Malpedia signator rules
MALPEDIA_Win_Sienna_Purple_Auto
autogenerated rule brought to you by yara-signator
MalwareSienna PurpleMalpedia 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: Sienna Purple.
It defines 10 patterns (0 text, 10 hex, 0 regex).
Summary generated from the rule's metadata and condition.
Rule source
win-sienna-purple-auto.yarCreative Commons Attribution-ShareAlike 4.0
rule MALPEDIA_Win_Sienna_Purple_Auto : FILE
{
meta:
= "autogenerated rule brought to you by yara-signator"
= "Felix Bilstein - yara-signator at cocacoding dot com"
= "8f472cd6-bdb2-5139-b94c-106a2662100e"
= "2026-05-04"
= "2026-05-18"
= "https://malpedia.caad.fkie.fraunhofer.de/details/win.sienna_purple"
= "https://github.com/malpedia/signator-rules//blob/c901f97b7df03e41917da74c2a84b04c227316c2/rules/win.sienna_purple_auto.yar#L1-L133"
= "N/A"
= "8c4e4b97a374adb59fce01582b86646d832e8c684fa39718b2059fd1028c8d1b"
= 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 = { c7833405000000000000 8b8b24050000 85c9 740f e8???????? c7832405000000000000 8d8b54010000 }
$sequence_1 = { eb6b 80f9ff 7566 807f01fe 7560 807f0200 755a }
$sequence_2 = { ff35???????? a3???????? ffd6 833d????????00 a3???????? 745a }
$sequence_3 = { c1e918 8845d6 884dd7 8b8d60ffffff 8bc1 c1e808 8845d9 }
$sequence_4 = { e8???????? 84c0 0f8499000000 85ff 7415 57 8d85f0feffff }
$sequence_5 = { d1ff 8bc7 897584 89bd6cffffff c7459c00000000 c7458c70105000 251f000080 }
$sequence_6 = { ba01000000 894608 8d04fd00000000 2bc7 c1e002 2bd8 8b4604 }
$sequence_7 = { e8???????? 33c0 85f6 0f855bffffff 85c0 740f 50 }
$sequence_8 = { c3 3d2d4f0000 7557 833d????????00 0f8599070000 50 e8???????? }
$sequence_9 = { e8???????? 83c40c ff75e0 e8???????? 83c404 8bc6 8b4df4 }
condition:
7 of them and filesize < 2930688
}
Strings (10 patterns)
| Identifier | Type | Value | Modifiers |
|---|---|---|---|
| $sequence_0 | hex | { c7833405000000000000 8b8b24050000 85c9 740f e8???????? c7832405000000000000 8d8b54010000 } | |
| $sequence_1 | hex | { eb6b 80f9ff 7566 807f01fe 7560 807f0200 755a } | |
| $sequence_2 | hex | { ff35???????? a3???????? ffd6 833d????????00 a3???????? 745a } | |
| $sequence_3 | hex | { c1e918 8845d6 884dd7 8b8d60ffffff 8bc1 c1e808 8845d9 } | |
| $sequence_4 | hex | { e8???????? 84c0 0f8499000000 85ff 7415 57 8d85f0feffff } | |
| $sequence_5 | hex | { d1ff 8bc7 897584 89bd6cffffff c7459c00000000 c7458c70105000 251f000080 } | |
| $sequence_6 | hex | { ba01000000 894608 8d04fd00000000 2bc7 c1e002 2bd8 8b4604 } | |
| $sequence_7 | hex | { e8???????? 33c0 85f6 0f855bffffff 85c0 740f 50 } | |
| $sequence_8 | hex | { c3 3d2d4f0000 7557 833d????????00 0f8599070000 50 e8???????? } | |
| $sequence_9 | hex | { e8???????? 83c40c ff75e0 e8???????? 83c404 8bc6 8b4df4 } |
Condition
7 of them and filesize < 2930688In plain words (Heuristic)
- The file must be smaller than 2930688 (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: 8f472cd6-bdb2-5139-b94c-106a2662100e
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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