YARA · Malpedia signator rules
MALPEDIA_Win_Wslink_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: Wslink.
It defines 10 patterns (0 text, 10 hex, 0 regex).
Summary generated from the rule's metadata and condition.
Rule source
win-wslink-auto.yarCreative Commons Attribution-ShareAlike 4.0
rule MALPEDIA_Win_Wslink_Auto : FILE
{
meta:
= "autogenerated rule brought to you by yara-signator"
= "Felix Bilstein - yara-signator at cocacoding dot com"
= "c211ad5f-a99b-5f17-9d41-ef8388b41a8d"
= "2026-05-04"
= "2026-05-18"
= "https://malpedia.caad.fkie.fraunhofer.de/details/win.wslink"
= "https://github.com/malpedia/signator-rules//blob/c901f97b7df03e41917da74c2a84b04c227316c2/rules/win.wslink_auto.yar#L1-L133"
= "N/A"
= "7a76b82ca4cd8df9ef8dc5893b14fdb902f10663f86d8a5a5da353f6f43f05ea"
= 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 = { e8???????? 33c0 4883c450 5e c3 488bc6 4883c450 }
$sequence_1 = { 8d4f25 448d476f c74424208d010000 e8???????? 33c0 4883c430 5f }
$sequence_2 = { 4c8d0db6ec0700 498d440d00 488d15caec0700 488bcd 483bc6 488d0561b40800 4c0f44c8 }
$sequence_3 = { 488bd3 0f4fc8 4c63c9 85c9 7e2b 4c8b4508 }
$sequence_4 = { e8???????? 2507000f00 3d02000100 751a c7442420da000000 4c8d0d0c6f0b00 41b8aa000000 }
$sequence_5 = { 7756 4898 8b8c867ca40400 4803ce ffe1 834f4801 eb42 }
$sequence_6 = { 418d48bd e8???????? 488bf8 4885c0 743b 48837d0000 750e }
$sequence_7 = { 750e 4883c458 415f 415d 415c 5f 5d }
$sequence_8 = { 4863c8 4c3bf9 7422 ba64000000 4c8d0dcd6e0600 c7442420be000000 8d4ac7 }
$sequence_9 = { 83f9ff 7508 b910000000 418bf3 488b457f 4c8d4d6f 33d2 }
condition:
7 of them and filesize < 2007040
}
Strings (10 patterns)
| Identifier | Type | Value | Modifiers |
|---|---|---|---|
| $sequence_0 | hex | { e8???????? 33c0 4883c450 5e c3 488bc6 4883c450 } | |
| $sequence_1 | hex | { 8d4f25 448d476f c74424208d010000 e8???????? 33c0 4883c430 5f } | |
| $sequence_2 | hex | { 4c8d0db6ec0700 498d440d00 488d15caec0700 488bcd 483bc6 488d0561b40800 4c0f44c8 } | |
| $sequence_3 | hex | { 488bd3 0f4fc8 4c63c9 85c9 7e2b 4c8b4508 } | |
| $sequence_4 | hex | { e8???????? 2507000f00 3d02000100 751a c7442420da000000 4c8d0d0c6f0b00 41b8aa000000 } | |
| $sequence_5 | hex | { 7756 4898 8b8c867ca40400 4803ce ffe1 834f4801 eb42 } | |
| $sequence_6 | hex | { 418d48bd e8???????? 488bf8 4885c0 743b 48837d0000 750e } | |
| $sequence_7 | hex | { 750e 4883c458 415f 415d 415c 5f 5d } | |
| $sequence_8 | hex | { 4863c8 4c3bf9 7422 ba64000000 4c8d0dcd6e0600 c7442420be000000 8d4ac7 } | |
| $sequence_9 | hex | { 83f9ff 7508 b910000000 418bf3 488b457f 4c8d4d6f 33d2 } |
Condition
7 of them and filesize < 2007040In plain words (Heuristic)
- The file must be smaller than 2007040 (a cheap guard that skips large files).
- At least 7 patterns in the rule must match.
Test this rule in your browser
Drop a file to scan it with this rule using YARA-X compiled to WebAssembly. Nothing is uploaded.
Drop a file here or click to chooseScanned locally with YARA-X. Files up to 200 MB.
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: c211ad5f-a99b-5f17-9d41-ef8388b41a8d
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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