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MALPEDIA_Win_Sedll_Auto

autogenerated rule brought to you by yara-signator

MalwareSedllMalpedia 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: Sedll.

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

Summary generated from the rule's metadata and condition.

Rule source

win-sedll-auto.yarCreative Commons Attribution-ShareAlike 4.0
rule MALPEDIA_Win_Sedll_Auto : FILE
{
	meta:
		description = "autogenerated rule brought to you by yara-signator"
		author = "Felix Bilstein - yara-signator at cocacoding dot com"
		id = "1a7ca438-f915-59a0-affa-5dfe0da10dfc"
		date = "2026-05-04"
		modified = "2026-05-18"
		reference = "https://malpedia.caad.fkie.fraunhofer.de/details/win.sedll"
		source_url = "https://github.com/malpedia/signator-rules//blob/c901f97b7df03e41917da74c2a84b04c227316c2/rules/win.sedll_auto.yar#L1-L124"
		license_url = "N/A"
		logic_hash = "ddd7994dbe083b91d1d2b24210e454bbc79a4d380f469f3c00c75fcc15ef89ca"
		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 = { ff75fc f30f7f45dc 6a00 6a00 6a00 }
		$sequence_1 = { ff15???????? 83c408 85c0 0f85ea000000 f30f6f05???????? 68d2010000 }
		$sequence_2 = { 8908 33c0 5d c20c00 8bd1 be???????? }
		$sequence_3 = { 5e 8908 33c0 5d c20c00 8b4510 33c9 }
		$sequence_4 = { 8d55f8 52 c745f800000000 68???????? 8b08 50 ff11 }
		$sequence_5 = { ff15???????? 85f6 7508 33c0 5e }
		$sequence_6 = { 7514 8b4508 4e 2bf1 5f 8930 8bc1 }
		$sequence_7 = { 8bf0 83c404 8975e8 85f6 7507 5f }
		$sequence_8 = { 7c7e 8d9b00000000 0fb60f 83c604 c1e902 }
		$sequence_9 = { 660fd645f0 56 8bf1 85c0 740a 50 }

	condition:
		7 of them and filesize < 65536
}

Strings (10 patterns)

IdentifierTypeValueModifiers
$sequence_0hex{ ff75fc f30f7f45dc 6a00 6a00 6a00 }
$sequence_1hex{ ff15???????? 83c408 85c0 0f85ea000000 f30f6f05???????? 68d2010000 }
$sequence_2hex{ 8908 33c0 5d c20c00 8bd1 be???????? }
$sequence_3hex{ 5e 8908 33c0 5d c20c00 8b4510 33c9 }
$sequence_4hex{ 8d55f8 52 c745f800000000 68???????? 8b08 50 ff11 }
$sequence_5hex{ ff15???????? 85f6 7508 33c0 5e }
$sequence_6hex{ 7514 8b4508 4e 2bf1 5f 8930 8bc1 }
$sequence_7hex{ 8bf0 83c404 8975e8 85f6 7507 5f }
$sequence_8hex{ 7c7e 8d9b00000000 0fb60f 83c604 c1e902 }
$sequence_9hex{ 660fd645f0 56 8bf1 85c0 740a 50 }

Condition

7 of them and filesize < 65536

In plain words (Heuristic)

  • The file must be smaller than 65536 (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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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: 1a7ca438-f915-59a0-affa-5dfe0da10dfc

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