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MALPEDIA_Win_Wslink_Auto

autogenerated rule brought to you by yara-signator

MalwareWslinkMalpedia 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: 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:
		description = "autogenerated rule brought to you by yara-signator"
		author = "Felix Bilstein - yara-signator at cocacoding dot com"
		id = "c211ad5f-a99b-5f17-9d41-ef8388b41a8d"
		date = "2026-05-04"
		modified = "2026-05-18"
		reference = "https://malpedia.caad.fkie.fraunhofer.de/details/win.wslink"
		source_url = "https://github.com/malpedia/signator-rules//blob/c901f97b7df03e41917da74c2a84b04c227316c2/rules/win.wslink_auto.yar#L1-L133"
		license_url = "N/A"
		logic_hash = "7a76b82ca4cd8df9ef8dc5893b14fdb902f10663f86d8a5a5da353f6f43f05ea"
		score = 75
		quality = 75
		tags = "FILE"
		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"

	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)

IdentifierTypeValueModifiers
$sequence_0hex{ e8???????? 33c0 4883c450 5e c3 488bc6 4883c450 }
$sequence_1hex{ 8d4f25 448d476f c74424208d010000 e8???????? 33c0 4883c430 5f }
$sequence_2hex{ 4c8d0db6ec0700 498d440d00 488d15caec0700 488bcd 483bc6 488d0561b40800 4c0f44c8 }
$sequence_3hex{ 488bd3 0f4fc8 4c63c9 85c9 7e2b 4c8b4508 }
$sequence_4hex{ e8???????? 2507000f00 3d02000100 751a c7442420da000000 4c8d0d0c6f0b00 41b8aa000000 }
$sequence_5hex{ 7756 4898 8b8c867ca40400 4803ce ffe1 834f4801 eb42 }
$sequence_6hex{ 418d48bd e8???????? 488bf8 4885c0 743b 48837d0000 750e }
$sequence_7hex{ 750e 4883c458 415f 415d 415c 5f 5d }
$sequence_8hex{ 4863c8 4c3bf9 7422 ba64000000 4c8d0dcd6e0600 c7442420be000000 8d4ac7 }
$sequence_9hex{ 83f9ff 7508 b910000000 418bf3 488b457f 4c8d4d6f 33d2 }

Condition

7 of them and filesize < 2007040

In 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

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Drop a file here or click to chooseScanned locally with YARA-X. Files up to 200 MB.

Open in editor

References

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)

Original rule

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

version1
toolyara-signator v0.6.0
signator_configcallsandjumps;datarefs;binvalue
malpedia_rule_date20260422
malpedia_hasha182e35da64e6d71cb55f125c4d4225196523f14
malpedia_version20260504
malpedia_licenseCC BY-SA 4.0
malpedia_sharingTLP:WHITE

Tags:FILE