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MALPEDIA_Win_Usbferry_Auto

autogenerated rule brought to you by yara-signator

MalwareUsbferryMalpedia 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: Usbferry.

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

Summary generated from the rule's metadata and condition.

Rule source

win-usbferry-auto.yarCreative Commons Attribution-ShareAlike 4.0
rule MALPEDIA_Win_Usbferry_Auto : FILE
{
	meta:
		description = "autogenerated rule brought to you by yara-signator"
		author = "Felix Bilstein - yara-signator at cocacoding dot com"
		id = "7d09bc56-455f-5960-897e-c3b7455498c5"
		date = "2026-05-04"
		modified = "2026-05-18"
		reference = "https://malpedia.caad.fkie.fraunhofer.de/details/win.usbferry"
		source_url = "https://github.com/malpedia/signator-rules//blob/c901f97b7df03e41917da74c2a84b04c227316c2/rules/win.usbferry_auto.yar#L1-L168"
		license_url = "N/A"
		logic_hash = "0945567a57779bec5e838aa3a56e2d7838def15ae0fcfa557a1da9b07da9a13a"
		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 = { 56 ff5134 33c0 40 5b 8b4dfc }
		$sequence_1 = { 0f8583000000 8b4518 8945d8 8b4dd8 }
		$sequence_2 = { 8bd7 8d8df8fbffff e8???????? eb5b 6800040000 8d8df8f7ffff }
		$sequence_3 = { 742c 8b4de0 51 ff15???????? c745c000000000 }
		$sequence_4 = { c685b5faffff69 c685b6faffff6d c685b7faffff20 c685b8faffff00 68ef030000 }
		$sequence_5 = { 0f570d???????? c645a72d eb14 f6c104 7406 }
		$sequence_6 = { 8bec 81ec880a0000 a1???????? 33c5 8945fc 56 57 }
		$sequence_7 = { 57 8d45fb c645fb00 50 8bce e8???????? }
		$sequence_8 = { c645c069 c645c16e c645c264 c645c36f c645c477 }
		$sequence_9 = { 83c40c 6a00 6a2e 8d8da8feffff }
		$sequence_10 = { 8a02 8845df 8345d801 807ddf00 75ee 8b4dd8 2b4dc8 }
		$sequence_11 = { 838598f5ffff01 80bda1f5ffff00 75e2 8b9598f5ffff 2b9588f5ffff 8b8588f5ffff 89857cf5ffff }
		$sequence_12 = { d3e0 844415e0 75d9 8bfe }
		$sequence_13 = { 8bc6 f7f3 8bf0 8a043a 88440da4 }
		$sequence_14 = { ffb5acfaffff e8???????? 59 59 eb1e }
		$sequence_15 = { 83ceff 89542410 8944240c 89742418 80f930 }

	condition:
		7 of them and filesize < 638976
}

Strings (16 patterns)

IdentifierTypeValueModifiers
$sequence_0hex{ 56 ff5134 33c0 40 5b 8b4dfc }
$sequence_1hex{ 0f8583000000 8b4518 8945d8 8b4dd8 }
$sequence_2hex{ 8bd7 8d8df8fbffff e8???????? eb5b 6800040000 8d8df8f7ffff }
$sequence_3hex{ 742c 8b4de0 51 ff15???????? c745c000000000 }
$sequence_4hex{ c685b5faffff69 c685b6faffff6d c685b7faffff20 c685b8faffff00 68ef030000 }
$sequence_5hex{ 0f570d???????? c645a72d eb14 f6c104 7406 }
$sequence_6hex{ 8bec 81ec880a0000 a1???????? 33c5 8945fc 56 57 }
$sequence_7hex{ 57 8d45fb c645fb00 50 8bce e8???????? }
$sequence_8hex{ c645c069 c645c16e c645c264 c645c36f c645c477 }
$sequence_9hex{ 83c40c 6a00 6a2e 8d8da8feffff }
$sequence_10hex{ 8a02 8845df 8345d801 807ddf00 75ee 8b4dd8 2b4dc8 }
$sequence_11hex{ 838598f5ffff01 80bda1f5ffff00 75e2 8b9598f5ffff 2b9588f5ffff 8b8588f5ffff 89857cf5ffff }
$sequence_12hex{ d3e0 844415e0 75d9 8bfe }
$sequence_13hex{ 8bc6 f7f3 8bf0 8a043a 88440da4 }
$sequence_14hex{ ffb5acfaffff e8???????? 59 59 eb1e }
$sequence_15hex{ 83ceff 89542410 8944240c 89742418 80f930 }

Condition

7 of them and filesize < 638976

In plain words (Heuristic)

  • The file must be smaller than 638976 (a cheap guard that skips large files).
  • At least 7 patterns in the rule must match.

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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: 7d09bc56-455f-5960-897e-c3b7455498c5

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