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MALPEDIA_Win_Spyder_Auto

autogenerated rule brought to you by yara-signator

MalwareSpyderMalpedia 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: Spyder.

It defines 16 patterns (0 text, 16 hex, 0 regex).

Summary generated from the rule's metadata and condition.

Rule source

win-spyder-auto.yarCreative Commons Attribution-ShareAlike 4.0
rule MALPEDIA_Win_Spyder_Auto : FILE
{
	meta:
		description = "autogenerated rule brought to you by yara-signator"
		author = "Felix Bilstein - yara-signator at cocacoding dot com"
		id = "49c2f7a4-c2df-5588-ba40-2ef1012f45f0"
		date = "2026-05-04"
		modified = "2026-05-18"
		reference = "https://malpedia.caad.fkie.fraunhofer.de/details/win.spyder"
		source_url = "https://github.com/malpedia/signator-rules//blob/c901f97b7df03e41917da74c2a84b04c227316c2/rules/win.spyder_auto.yar#L1-L172"
		license_url = "N/A"
		logic_hash = "1f2f2b8b3552c904a7bda16aac06661c245bdc415e25af6bcbb29062971d99e1"
		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 = { 33db 48391d???????? 488bf8 0f85d5000000 488d0d935f0000 }
		$sequence_1 = { 33c9 ff15???????? 488d0d63880000 ff15???????? 833d????????00 750a b901000000 }
		$sequence_2 = { 85c0 755a 488d0d13330000 e8???????? 488d1da7a20000 488d3da8a20000 }
		$sequence_3 = { 488905???????? ff15???????? 488bc8 ff15???????? 488d15005f0000 }
		$sequence_4 = { 488d15385f0000 488bce 488905???????? ff15???????? }
		$sequence_5 = { 4883ec48 488364243000 8364242800 41b803000000 488d0d84340000 }
		$sequence_6 = { 4c8d05ca930000 388c2498000000 0f94c1 4803da 4803d9 482bfb }
		$sequence_7 = { e8???????? b905000000 4885c0 0f44d9 8bc3 4883c420 }
		$sequence_8 = { 6800100000 51 55 ffd6 8b742418 8b4f54 }
		$sequence_9 = { c1f905 83e01f 8b0c8d204b0910 8d04c0 8d0481 8b4dfc 8b09 }
		$sequence_10 = { ffd3 8b4750 8b4f34 8b35???????? }
		$sequence_11 = { bf???????? 8d3452 f3ab c1e604 aa 8d9e903d0910 }
		$sequence_12 = { 7372 8bc3 c1f805 8d3c85204b0910 8bc3 }
		$sequence_13 = { 83c604 ebed 5e c3 a1???????? 56 6a14 }
		$sequence_14 = { e8???????? 83c42c 5f eb26 8d4508 8db6ec3c0910 6a00 }
		$sequence_15 = { 0f8794000000 8088014a091004 40 ebee }

	condition:
		7 of them and filesize < 1458176
}

Strings (16 patterns)

IdentifierTypeValueModifiers
$sequence_0hex{ 33db 48391d???????? 488bf8 0f85d5000000 488d0d935f0000 }
$sequence_1hex{ 33c9 ff15???????? 488d0d63880000 ff15???????? 833d????????00 750a b901000000 }
$sequence_2hex{ 85c0 755a 488d0d13330000 e8???????? 488d1da7a20000 488d3da8a20000 }
$sequence_3hex{ 488905???????? ff15???????? 488bc8 ff15???????? 488d15005f0000 }
$sequence_4hex{ 488d15385f0000 488bce 488905???????? ff15???????? }
$sequence_5hex{ 4883ec48 488364243000 8364242800 41b803000000 488d0d84340000 }
$sequence_6hex{ 4c8d05ca930000 388c2498000000 0f94c1 4803da 4803d9 482bfb }
$sequence_7hex{ e8???????? b905000000 4885c0 0f44d9 8bc3 4883c420 }
$sequence_8hex{ 6800100000 51 55 ffd6 8b742418 8b4f54 }
$sequence_9hex{ c1f905 83e01f 8b0c8d204b0910 8d04c0 8d0481 8b4dfc 8b09 }
$sequence_10hex{ ffd3 8b4750 8b4f34 8b35???????? }
$sequence_11hex{ bf???????? 8d3452 f3ab c1e604 aa 8d9e903d0910 }
$sequence_12hex{ 7372 8bc3 c1f805 8d3c85204b0910 8bc3 }
$sequence_13hex{ 83c604 ebed 5e c3 a1???????? 56 6a14 }
$sequence_14hex{ e8???????? 83c42c 5f eb26 8d4508 8db6ec3c0910 6a00 }
$sequence_15hex{ 0f8794000000 8088014a091004 40 ebee }

Condition

7 of them and filesize < 1458176

In plain words (Heuristic)

  • The file must be smaller than 1458176 (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: 49c2f7a4-c2df-5588-ba40-2ef1012f45f0

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