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MALPEDIA_Win_Longwatch_Auto

autogenerated rule brought to you by yara-signator

MalwareLongwatchMalpedia 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: Longwatch.

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

Summary generated from the rule's metadata and condition.

Rule source

win-longwatch-auto.yarCreative Commons Attribution-ShareAlike 4.0
rule MALPEDIA_Win_Longwatch_Auto : FILE
{
	meta:
		description = "autogenerated rule brought to you by yara-signator"
		author = "Felix Bilstein - yara-signator at cocacoding dot com"
		id = "ce0e9c11-46ca-5532-8823-1deb885f5c74"
		date = "2026-05-04"
		modified = "2026-05-18"
		reference = "https://malpedia.caad.fkie.fraunhofer.de/details/win.longwatch"
		source_url = "https://github.com/malpedia/signator-rules//blob/c901f97b7df03e41917da74c2a84b04c227316c2/rules/win.longwatch_auto.yar#L1-L118"
		license_url = "N/A"
		logic_hash = "9dae6296ff953841361d58c7b1fa7eff6214a00cb7112d7c5966dd21deae5ffb"
		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 = { 83fb12 741e 83fb03 7419 }
		$sequence_1 = { 8b4004 c74410e8a0bb4200 8b42e8 8b4804 8d41e8 894411e4 }
		$sequence_2 = { 750b 8b0d???????? e8???????? e8???????? 83ec18 }
		$sequence_3 = { 8d8d48ffffff 68???????? e8???????? 85c0 8d8d30ffffff 8b8530ffffff }
		$sequence_4 = { 33f6 3bc8 740c 8b0cb5f8344200 46 }
		$sequence_5 = { e8???????? 83ec14 c645fc02 8bcc 8bd0 51 }
		$sequence_6 = { c705????????01000000 c705????????01000000 6a04 58 6bc000 8b4d08 898894004300 }
		$sequence_7 = { eb0f 8ad3 8d8d40ffffff e8???????? 8ad3 }
		$sequence_8 = { 1bc0 83c801 85c0 745b e8???????? }
		$sequence_9 = { 8d8d48ffffff c78548ffffffdc334200 e8???????? 83ec08 c745fc02000000 }

	condition:
		7 of them and filesize < 647168
}

Strings (10 patterns)

IdentifierTypeValueModifiers
$sequence_0hex{ 83fb12 741e 83fb03 7419 }
$sequence_1hex{ 8b4004 c74410e8a0bb4200 8b42e8 8b4804 8d41e8 894411e4 }
$sequence_2hex{ 750b 8b0d???????? e8???????? e8???????? 83ec18 }
$sequence_3hex{ 8d8d48ffffff 68???????? e8???????? 85c0 8d8d30ffffff 8b8530ffffff }
$sequence_4hex{ 33f6 3bc8 740c 8b0cb5f8344200 46 }
$sequence_5hex{ e8???????? 83ec14 c645fc02 8bcc 8bd0 51 }
$sequence_6hex{ c705????????01000000 c705????????01000000 6a04 58 6bc000 8b4d08 898894004300 }
$sequence_7hex{ eb0f 8ad3 8d8d40ffffff e8???????? 8ad3 }
$sequence_8hex{ 1bc0 83c801 85c0 745b e8???????? }
$sequence_9hex{ 8d8d48ffffff c78548ffffffdc334200 e8???????? 83ec08 c745fc02000000 }

Condition

7 of them and filesize < 647168

In plain words (Heuristic)

  • The file must be smaller than 647168 (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: ce0e9c11-46ca-5532-8823-1deb885f5c74

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