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MALPEDIA_Win_Furtim_Auto

autogenerated rule brought to you by yara-signator

MalwareFurtimMalpedia 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: Furtim.

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

Summary generated from the rule's metadata and condition.

Rule source

win-furtim-auto.yarCreative Commons Attribution-ShareAlike 4.0
rule MALPEDIA_Win_Furtim_Auto : FILE
{
	meta:
		description = "autogenerated rule brought to you by yara-signator"
		author = "Felix Bilstein - yara-signator at cocacoding dot com"
		id = "997496b4-68e2-55bd-9790-724c9dca1765"
		date = "2026-05-04"
		modified = "2026-05-18"
		reference = "https://malpedia.caad.fkie.fraunhofer.de/details/win.furtim"
		source_url = "https://github.com/malpedia/signator-rules//blob/c901f97b7df03e41917da74c2a84b04c227316c2/rules/win.furtim_auto.yar#L1-L129"
		license_url = "N/A"
		logic_hash = "021866744ccba840eb17e7885794bb12bfcecfd8614d8904503788a79f60e019"
		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 = { 5b 5e 83c578 c9 c3 8bff 56 }
		$sequence_1 = { 8bce 84c0 74e7 bf???????? eb0d 6a64 5a }
		$sequence_2 = { 52 8d45f4 8bf1 50 ff963c050000 8b4508 }
		$sequence_3 = { 895dfc ff960c030000 85c0 740f }
		$sequence_4 = { 5b c3 56 8bf1 57 b9feff0000 ff96b8020000 }
		$sequence_5 = { 57 c786500600006ec74000 c7862404000020db4000 c7869c03000068434000 c78698030000aa314000 c7863806000088c54000 c786c80500000c8d4000 }
		$sequence_6 = { ba???????? 8bce ff9664060000 68???????? ff9688050000 8bf8 }
		$sequence_7 = { 817dfce8030000 0f8f8c000000 8b5df8 83c310 68???????? 53 ff96c8040000 }
		$sequence_8 = { ffd0 85c0 7467 397df8 7462 ff75fc ff96bc040000 }
		$sequence_9 = { 83e6f8 33c9 8b3c8a 83e7f8 3bfe 740b 41 }

	condition:
		7 of them and filesize < 622592
}

Strings (10 patterns)

IdentifierTypeValueModifiers
$sequence_0hex{ 5b 5e 83c578 c9 c3 8bff 56 }
$sequence_1hex{ 8bce 84c0 74e7 bf???????? eb0d 6a64 5a }
$sequence_2hex{ 52 8d45f4 8bf1 50 ff963c050000 8b4508 }
$sequence_3hex{ 895dfc ff960c030000 85c0 740f }
$sequence_4hex{ 5b c3 56 8bf1 57 b9feff0000 ff96b8020000 }
$sequence_5hex{ 57 c786500600006ec74000 c7862404000020db4000 c7869c03000068434000 c78698030000aa314000 c7863806000088c54000 c786c80500000c8d4000 }
$sequence_6hex{ ba???????? 8bce ff9664060000 68???????? ff9688050000 8bf8 }
$sequence_7hex{ 817dfce8030000 0f8f8c000000 8b5df8 83c310 68???????? 53 ff96c8040000 }
$sequence_8hex{ ffd0 85c0 7467 397df8 7462 ff75fc ff96bc040000 }
$sequence_9hex{ 83e6f8 33c9 8b3c8a 83e7f8 3bfe 740b 41 }

Condition

7 of them and filesize < 622592

In plain words (Heuristic)

  • The file must be smaller than 622592 (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: 997496b4-68e2-55bd-9790-724c9dca1765

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