YARA · Malpedia signator rules
MALPEDIA_Win_Skyplex_Auto
autogenerated rule brought to you by yara-signator
MalwareSkyplexMalpedia 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: Skyplex.
It defines 10 patterns (0 text, 10 hex, 0 regex).
Summary generated from the rule's metadata and condition.
Rule source
win-skyplex-auto.yarCreative Commons Attribution-ShareAlike 4.0
rule MALPEDIA_Win_Skyplex_Auto : FILE
{
meta:
= "autogenerated rule brought to you by yara-signator"
= "Felix Bilstein - yara-signator at cocacoding dot com"
= "087dca5f-d631-5612-bd75-82c0d735f793"
= "2026-05-04"
= "2026-05-18"
= "https://malpedia.caad.fkie.fraunhofer.de/details/win.skyplex"
= "https://github.com/malpedia/signator-rules//blob/c901f97b7df03e41917da74c2a84b04c227316c2/rules/win.skyplex_auto.yar#L1-L121"
= "N/A"
= "b55412a36eabe71f96854517e823836caf1f285d3ff56ec8f8e1708327797508"
= 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 = { 52 e8???????? 83c408 85c0 7430 68???????? }
$sequence_1 = { 68???????? 8d9538f7ffff 52 e8???????? 83c408 85c0 0f8490000000 }
$sequence_2 = { 8d45fc 50 8d8d30ffffff 51 ff15???????? 8d9530ffffff 52 }
$sequence_3 = { 85c0 0f85d0000000 68???????? 8d85b0f9ffff 50 e8???????? }
$sequence_4 = { 89430c 8d4310 8d89649c4100 5a 668b31 }
$sequence_5 = { 8d95b0f9ffff 52 e8???????? 83c408 85c0 }
$sequence_6 = { 83c201 88953ff6ffff 8d8d38f6ffff e8???????? 0fb6853ff6ffff }
$sequence_7 = { 752b e8???????? 0fb6d0 85d2 }
$sequence_8 = { 8b36 8bce c1f905 8b0c8dc0af4100 83e61f c1e606 89040e }
$sequence_9 = { c7851cf7ffff04000000 c78520f7ffffb0454100 c78524f7ffffe8454100 c78528f7ffff30464100 c7852cf7ffff80464100 }
condition:
7 of them and filesize < 262144
}
Strings (10 patterns)
| Identifier | Type | Value | Modifiers |
|---|---|---|---|
| $sequence_0 | hex | { 52 e8???????? 83c408 85c0 7430 68???????? } | |
| $sequence_1 | hex | { 68???????? 8d9538f7ffff 52 e8???????? 83c408 85c0 0f8490000000 } | |
| $sequence_2 | hex | { 8d45fc 50 8d8d30ffffff 51 ff15???????? 8d9530ffffff 52 } | |
| $sequence_3 | hex | { 85c0 0f85d0000000 68???????? 8d85b0f9ffff 50 e8???????? } | |
| $sequence_4 | hex | { 89430c 8d4310 8d89649c4100 5a 668b31 } | |
| $sequence_5 | hex | { 8d95b0f9ffff 52 e8???????? 83c408 85c0 } | |
| $sequence_6 | hex | { 83c201 88953ff6ffff 8d8d38f6ffff e8???????? 0fb6853ff6ffff } | |
| $sequence_7 | hex | { 752b e8???????? 0fb6d0 85d2 } | |
| $sequence_8 | hex | { 8b36 8bce c1f905 8b0c8dc0af4100 83e61f c1e606 89040e } | |
| $sequence_9 | hex | { c7851cf7ffff04000000 c78520f7ffffb0454100 c78524f7ffffe8454100 c78528f7ffff30464100 c7852cf7ffff80464100 } |
Condition
7 of them and filesize < 262144In plain words (Heuristic)
- The file must be smaller than 262144 (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: 087dca5f-d631-5612-bd75-82c0d735f793
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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