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MALPEDIA_Win_Cargobay_Auto

autogenerated rule brought to you by yara-signator

MalwareCargobayMalpedia 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: Cargobay.

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

Summary generated from the rule's metadata and condition.

Rule source

win-cargobay-auto.yarCreative Commons Attribution-ShareAlike 4.0
rule MALPEDIA_Win_Cargobay_Auto : FILE
{
	meta:
		description = "autogenerated rule brought to you by yara-signator"
		author = "Felix Bilstein - yara-signator at cocacoding dot com"
		id = "d1c395b9-93cb-55d6-a8a1-d5d9301250e6"
		date = "2026-05-04"
		modified = "2026-05-18"
		reference = "https://malpedia.caad.fkie.fraunhofer.de/details/win.cargobay"
		source_url = "https://github.com/malpedia/signator-rules//blob/c901f97b7df03e41917da74c2a84b04c227316c2/rules/win.cargobay_auto.yar#L1-L134"
		license_url = "N/A"
		logic_hash = "535fe4668c33a2d7c01573f2e50f9f413ad5d474304a9cec1def23e30f2c89b6"
		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 = { 5e 415c 415d 415e 415f c3 488b8424e8010000 }
		$sequence_1 = { e8???????? 488b9c24b0000000 488b4308 0fb64808 48ffc9 4883f902 7304 }
		$sequence_2 = { 89ca 80e21f 0fb6d2 0fb67001 83e63f 80f9df 763c }
		$sequence_3 = { e8???????? e9???????? 56 57 4883ec48 4889ce 488b4110 }
		$sequence_4 = { e8???????? 4c8bbd90000000 488bbd98000000 4d89fe 4929fe 4d89f0 4929d8 }
		$sequence_5 = { e9???????? b91f000000 31d2 e8???????? 0f1005???????? 0f1100 0f1005???????? }
		$sequence_6 = { 4c8d05cf070b00 488db42470020000 41b92c000000 4889f1 e8???????? 4889df 4883c710 }
		$sequence_7 = { f6c101 755a 89d5 4c8bb42480000000 488bbc2488000000 4c39f7 7416 }
		$sequence_8 = { e8???????? 4c8d05f3e20c00 ba0b000000 4889f9 e8???????? 4989d0 4489f9 }
		$sequence_9 = { eb5e 41b800001c00 eb56 41b800001d00 eb4e 41b800001e00 eb46 }

	condition:
		7 of them and filesize < 3432448
}

Strings (10 patterns)

IdentifierTypeValueModifiers
$sequence_0hex{ 5e 415c 415d 415e 415f c3 488b8424e8010000 }
$sequence_1hex{ e8???????? 488b9c24b0000000 488b4308 0fb64808 48ffc9 4883f902 7304 }
$sequence_2hex{ 89ca 80e21f 0fb6d2 0fb67001 83e63f 80f9df 763c }
$sequence_3hex{ e8???????? e9???????? 56 57 4883ec48 4889ce 488b4110 }
$sequence_4hex{ e8???????? 4c8bbd90000000 488bbd98000000 4d89fe 4929fe 4d89f0 4929d8 }
$sequence_5hex{ e9???????? b91f000000 31d2 e8???????? 0f1005???????? 0f1100 0f1005???????? }
$sequence_6hex{ 4c8d05cf070b00 488db42470020000 41b92c000000 4889f1 e8???????? 4889df 4883c710 }
$sequence_7hex{ f6c101 755a 89d5 4c8bb42480000000 488bbc2488000000 4c39f7 7416 }
$sequence_8hex{ e8???????? 4c8d05f3e20c00 ba0b000000 4889f9 e8???????? 4989d0 4489f9 }
$sequence_9hex{ eb5e 41b800001c00 eb56 41b800001d00 eb4e 41b800001e00 eb46 }

Condition

7 of them and filesize < 3432448

In plain words (Heuristic)

  • The file must be smaller than 3432448 (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: d1c395b9-93cb-55d6-a8a1-d5d9301250e6

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