YARA · Malpedia signator rules
MALPEDIA_Win_Wscspl_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: Wscspl.
It defines 10 patterns (0 text, 10 hex, 0 regex).
Summary generated from the rule's metadata and condition.
Rule source
win-wscspl-auto.yarCreative Commons Attribution-ShareAlike 4.0
rule MALPEDIA_Win_Wscspl_Auto : FILE
{
meta:
= "autogenerated rule brought to you by yara-signator"
= "Felix Bilstein - yara-signator at cocacoding dot com"
= "10a44a18-6fde-56d6-a217-c144613b4151"
= "2026-05-04"
= "2026-05-18"
= "https://malpedia.caad.fkie.fraunhofer.de/details/win.wscspl"
= "https://github.com/malpedia/signator-rules//blob/c901f97b7df03e41917da74c2a84b04c227316c2/rules/win.wscspl_auto.yar#L1-L119"
= "N/A"
= "cb5e227e13a328f2f5a7f4eeebaf49373e99a1f533f44dd2fff577df3e9bedce"
= 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 = { 8b3d???????? 8bf0 a1???????? 83c404 50 57 56 }
$sequence_1 = { 8b842490230000 55 8bac2498230000 56 57 0fbff8 81c745f4ffff }
$sequence_2 = { 56 8d44244c 57 8944241c c744241810270000 c744242000000000 }
$sequence_3 = { 8d842494050000 57 50 e8???????? 83c40c 83cbff }
$sequence_4 = { 5f 33c0 5e 83c40c c20400 57 }
$sequence_5 = { ff15???????? 687c230000 68be0b0000 33d2 }
$sequence_6 = { 663bf8 752f e8???????? 8b0d???????? }
$sequence_7 = { 8984247c230000 b8???????? 8d5001 8a08 40 }
$sequence_8 = { 89442438 e8???????? 8b7c2438 83c702 68???????? }
$sequence_9 = { 2bc1 8b4c2448 03f0 8b442444 ba3f3a0000 }
condition:
7 of them and filesize < 901120
}
Strings (10 patterns)
| Identifier | Type | Value | Modifiers |
|---|---|---|---|
| $sequence_0 | hex | { 8b3d???????? 8bf0 a1???????? 83c404 50 57 56 } | |
| $sequence_1 | hex | { 8b842490230000 55 8bac2498230000 56 57 0fbff8 81c745f4ffff } | |
| $sequence_2 | hex | { 56 8d44244c 57 8944241c c744241810270000 c744242000000000 } | |
| $sequence_3 | hex | { 8d842494050000 57 50 e8???????? 83c40c 83cbff } | |
| $sequence_4 | hex | { 5f 33c0 5e 83c40c c20400 57 } | |
| $sequence_5 | hex | { ff15???????? 687c230000 68be0b0000 33d2 } | |
| $sequence_6 | hex | { 663bf8 752f e8???????? 8b0d???????? } | |
| $sequence_7 | hex | { 8984247c230000 b8???????? 8d5001 8a08 40 } | |
| $sequence_8 | hex | { 89442438 e8???????? 8b7c2438 83c702 68???????? } | |
| $sequence_9 | hex | { 2bc1 8b4c2448 03f0 8b442444 ba3f3a0000 } |
Condition
7 of them and filesize < 901120In plain words (Heuristic)
- The file must be smaller than 901120 (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: 10a44a18-6fde-56d6-a217-c144613b4151
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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