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MALPEDIA_Win_Linseningsvr_Auto

autogenerated rule brought to you by yara-signator

MalwareLinseningsvrMalpedia 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: Linseningsvr.

It defines 10 patterns (0 text, 10 hex, 0 regex).

Summary generated from the rule's metadata and condition.

Rule source

win-linseningsvr-auto.yarCreative Commons Attribution-ShareAlike 4.0
rule MALPEDIA_Win_Linseningsvr_Auto : FILE
{
	meta:
		description = "autogenerated rule brought to you by yara-signator"
		author = "Felix Bilstein - yara-signator at cocacoding dot com"
		id = "9dcd591f-d0ec-5190-8dad-c6b3b9eab825"
		date = "2026-05-04"
		modified = "2026-05-18"
		reference = "https://malpedia.caad.fkie.fraunhofer.de/details/win.linseningsvr"
		source_url = "https://github.com/malpedia/signator-rules//blob/c901f97b7df03e41917da74c2a84b04c227316c2/rules/win.linseningsvr_auto.yar#L1-L124"
		license_url = "N/A"
		logic_hash = "0cfff1e97d9fd891165604e0b9cd757922199a1abb3f822338fa50a684f756d6"
		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 = { 8d34b558874000 832600 83c60c 4a 75f7 8b00 8b35???????? }
		$sequence_1 = { 47 3bfe 7ce7 68???????? e8???????? 8b15???????? b900010000 }
		$sequence_2 = { 83f908 7229 f3a5 ff2495982c4000 8bc7 ba03000000 }
		$sequence_3 = { e8???????? b900010000 33c0 8dbc2450040000 55 }
		$sequence_4 = { 8d3c8dc08d4000 c1e603 8b0f f644310401 7456 50 e8???????? }
		$sequence_5 = { 7c13 80fb78 7f0e 0fbec3 8a801c714000 }
		$sequence_6 = { 52 56 66895c2448 6689442456 ff15???????? 8bd8 }
		$sequence_7 = { 8944241c 33ff 8bc8 83f940 5d }
		$sequence_8 = { 8088818c400008 40 3dff000000 72f1 56 }
		$sequence_9 = { 8ac8 80c120 8888808b4000 eb1f 83f861 7213 83f87a }

	condition:
		7 of them and filesize < 81360
}

Strings (10 patterns)

IdentifierTypeValueModifiers
$sequence_0hex{ 8d34b558874000 832600 83c60c 4a 75f7 8b00 8b35???????? }
$sequence_1hex{ 47 3bfe 7ce7 68???????? e8???????? 8b15???????? b900010000 }
$sequence_2hex{ 83f908 7229 f3a5 ff2495982c4000 8bc7 ba03000000 }
$sequence_3hex{ e8???????? b900010000 33c0 8dbc2450040000 55 }
$sequence_4hex{ 8d3c8dc08d4000 c1e603 8b0f f644310401 7456 50 e8???????? }
$sequence_5hex{ 7c13 80fb78 7f0e 0fbec3 8a801c714000 }
$sequence_6hex{ 52 56 66895c2448 6689442456 ff15???????? 8bd8 }
$sequence_7hex{ 8944241c 33ff 8bc8 83f940 5d }
$sequence_8hex{ 8088818c400008 40 3dff000000 72f1 56 }
$sequence_9hex{ 8ac8 80c120 8888808b4000 eb1f 83f861 7213 83f87a }

Condition

7 of them and filesize < 81360

In plain words (Heuristic)

  • The file must be smaller than 81360 (a cheap guard that skips large files).
  • At least 7 patterns in the rule must match.

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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: 9dcd591f-d0ec-5190-8dad-c6b3b9eab825

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