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MALPEDIA_Win_Splinter_Auto

autogenerated rule brought to you by yara-signator

MalwareSplinterMalpedia 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: Splinter.

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

Summary generated from the rule's metadata and condition.

Rule source

win-splinter-auto.yarCreative Commons Attribution-ShareAlike 4.0
rule MALPEDIA_Win_Splinter_Auto : FILE
{
	meta:
		description = "autogenerated rule brought to you by yara-signator"
		author = "Felix Bilstein - yara-signator at cocacoding dot com"
		id = "157b8025-0d31-54a9-894f-302690690daf"
		date = "2026-05-04"
		modified = "2026-05-18"
		reference = "https://malpedia.caad.fkie.fraunhofer.de/details/win.splinter"
		source_url = "https://github.com/malpedia/signator-rules//blob/c901f97b7df03e41917da74c2a84b04c227316c2/rules/win.splinter_auto.yar#L1-L134"
		license_url = "N/A"
		logic_hash = "59034913d15f26756a9fffc3054d92ed87b462f5648ba464f507575052a3d56d"
		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 = { f048ff08 750d 488b45f8 488d4828 e8???????? 488b45f8 488b4818 }
		$sequence_1 = { e8???????? 488d8e70030000 e8???????? 90 4883c428 5b 5f }
		$sequence_2 = { ff5018 41b907000000 488d8dd0070000 488d95a0030000 4c8d05afbd5100 e8???????? 80bdf007000002 }
		$sequence_3 = { eb03 4c89ca 89d0 4429c8 0402 0fb6c8 4989d3 }
		$sequence_4 = { f686d101000001 0f8451010000 48ff86a0010000 4c8b8ec0010000 4983f903 0f87b7000000 440fb61a }
		$sequence_5 = { e8???????? eb54 c6858600000000 488d0de0631100 4c8d0501641100 ba28000000 e8???????? }
		$sequence_6 = { e9???????? 050000efff 83f808 b902000000 0f42c8 488d05587e4100 48630c88 }
		$sequence_7 = { b80a000000 4881f9ffc99a3b 776b b809000000 4881f9ffe0f505 775d b808000000 }
		$sequence_8 = { e8???????? e9???????? 488d0d4c4f3700 e8???????? e9???????? 488d0d234f3700 e8???????? }
		$sequence_9 = { ba80000000 e8???????? eb69 48895378 488d4378 48898338010000 488d0556243700 }

	condition:
		7 of them and filesize < 20177920
}

Strings (10 patterns)

IdentifierTypeValueModifiers
$sequence_0hex{ f048ff08 750d 488b45f8 488d4828 e8???????? 488b45f8 488b4818 }
$sequence_1hex{ e8???????? 488d8e70030000 e8???????? 90 4883c428 5b 5f }
$sequence_2hex{ ff5018 41b907000000 488d8dd0070000 488d95a0030000 4c8d05afbd5100 e8???????? 80bdf007000002 }
$sequence_3hex{ eb03 4c89ca 89d0 4429c8 0402 0fb6c8 4989d3 }
$sequence_4hex{ f686d101000001 0f8451010000 48ff86a0010000 4c8b8ec0010000 4983f903 0f87b7000000 440fb61a }
$sequence_5hex{ e8???????? eb54 c6858600000000 488d0de0631100 4c8d0501641100 ba28000000 e8???????? }
$sequence_6hex{ e9???????? 050000efff 83f808 b902000000 0f42c8 488d05587e4100 48630c88 }
$sequence_7hex{ b80a000000 4881f9ffc99a3b 776b b809000000 4881f9ffe0f505 775d b808000000 }
$sequence_8hex{ e8???????? e9???????? 488d0d4c4f3700 e8???????? e9???????? 488d0d234f3700 e8???????? }
$sequence_9hex{ ba80000000 e8???????? eb69 48895378 488d4378 48898338010000 488d0556243700 }

Condition

7 of them and filesize < 20177920

In plain words (Heuristic)

  • The file must be smaller than 20177920 (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: 157b8025-0d31-54a9-894f-302690690daf

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