YARA · Malpedia signator rules
MALPEDIA_Win_Splinter_Auto
autogenerated rule brought to you by yara-signator
MalwareSplinterMalpedia 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: Splinter.
It defines 10 patterns (0 text, 10 hex, 0 regex).
Summary generated from the rule's metadata and condition.
Rule source
win-splinter-auto.yarCreative Commons Attribution-ShareAlike 4.0
rule MALPEDIA_Win_Splinter_Auto : FILE
{
meta:
= "autogenerated rule brought to you by yara-signator"
= "Felix Bilstein - yara-signator at cocacoding dot com"
= "157b8025-0d31-54a9-894f-302690690daf"
= "2026-05-04"
= "2026-05-18"
= "https://malpedia.caad.fkie.fraunhofer.de/details/win.splinter"
= "https://github.com/malpedia/signator-rules//blob/c901f97b7df03e41917da74c2a84b04c227316c2/rules/win.splinter_auto.yar#L1-L134"
= "N/A"
= "59034913d15f26756a9fffc3054d92ed87b462f5648ba464f507575052a3d56d"
= 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 = { f048ff08 750d 488b45f8 488d4828 e8???????? 488b45f8 488b4818 }
$sequence_1 = { e8???????? 488d8e70030000 e8???????? 90 4883c428 5b 5f }
$sequence_2 = { ff5018 41b907000000 488d8dd0070000 488d95a0030000 4c8d05afbd5100 e8???????? 80bdf007000002 }
$sequence_3 = { eb03 4c89ca 89d0 4429c8 0402 0fb6c8 4989d3 }
$sequence_4 = { f686d101000001 0f8451010000 48ff86a0010000 4c8b8ec0010000 4983f903 0f87b7000000 440fb61a }
$sequence_5 = { e8???????? eb54 c6858600000000 488d0de0631100 4c8d0501641100 ba28000000 e8???????? }
$sequence_6 = { e9???????? 050000efff 83f808 b902000000 0f42c8 488d05587e4100 48630c88 }
$sequence_7 = { b80a000000 4881f9ffc99a3b 776b b809000000 4881f9ffe0f505 775d b808000000 }
$sequence_8 = { e8???????? e9???????? 488d0d4c4f3700 e8???????? e9???????? 488d0d234f3700 e8???????? }
$sequence_9 = { ba80000000 e8???????? eb69 48895378 488d4378 48898338010000 488d0556243700 }
condition:
7 of them and filesize < 20177920
}
Strings (10 patterns)
| Identifier | Type | Value | Modifiers |
|---|---|---|---|
| $sequence_0 | hex | { f048ff08 750d 488b45f8 488d4828 e8???????? 488b45f8 488b4818 } | |
| $sequence_1 | hex | { e8???????? 488d8e70030000 e8???????? 90 4883c428 5b 5f } | |
| $sequence_2 | hex | { ff5018 41b907000000 488d8dd0070000 488d95a0030000 4c8d05afbd5100 e8???????? 80bdf007000002 } | |
| $sequence_3 | hex | { eb03 4c89ca 89d0 4429c8 0402 0fb6c8 4989d3 } | |
| $sequence_4 | hex | { f686d101000001 0f8451010000 48ff86a0010000 4c8b8ec0010000 4983f903 0f87b7000000 440fb61a } | |
| $sequence_5 | hex | { e8???????? eb54 c6858600000000 488d0de0631100 4c8d0501641100 ba28000000 e8???????? } | |
| $sequence_6 | hex | { e9???????? 050000efff 83f808 b902000000 0f42c8 488d05587e4100 48630c88 } | |
| $sequence_7 | hex | { b80a000000 4881f9ffc99a3b 776b b809000000 4881f9ffe0f505 775d b808000000 } | |
| $sequence_8 | hex | { e8???????? e9???????? 488d0d4c4f3700 e8???????? e9???????? 488d0d234f3700 e8???????? } | |
| $sequence_9 | hex | { ba80000000 e8???????? eb69 48895378 488d4378 48898338010000 488d0556243700 } |
Condition
7 of them and filesize < 20177920In plain words (Heuristic)
- The file must be smaller than 20177920 (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: 157b8025-0d31-54a9-894f-302690690daf
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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