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MALPEDIA_Win_Darkbit_Auto

autogenerated rule brought to you by yara-signator

MalwareDarkbitMalpedia 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: Darkbit.

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

Summary generated from the rule's metadata and condition.

Rule source

win-darkbit-auto.yarCreative Commons Attribution-ShareAlike 4.0
rule MALPEDIA_Win_Darkbit_Auto : FILE
{
	meta:
		description = "autogenerated rule brought to you by yara-signator"
		author = "Felix Bilstein - yara-signator at cocacoding dot com"
		id = "dc33b31b-87dd-5cc5-b322-adc3955b0e56"
		date = "2026-05-04"
		modified = "2026-05-18"
		reference = "https://malpedia.caad.fkie.fraunhofer.de/details/win.darkbit"
		source_url = "https://github.com/malpedia/signator-rules//blob/c901f97b7df03e41917da74c2a84b04c227316c2/rules/win.darkbit_auto.yar#L1-L134"
		license_url = "N/A"
		logic_hash = "75a82b2d5c03ccdd4b46d627f94c2dfbfa9055f5af2e5aec68ed45453358bf36"
		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 = { eb1c 4889c7 488b8c24f8250000 e8???????? 488d3d1b882200 e8???????? e8???????? }
		$sequence_1 = { e8???????? 488d3d4bb92200 e8???????? e8???????? 4889842488280000 48899c24580c0000 488b0d???????? }
		$sequence_2 = { ffd0 488b8c24f8000000 488b9c2410010000 488bbc2400010000 488b842408010000 488bac2420010000 4881c428010000 }
		$sequence_3 = { e8???????? 4889842478070000 4889d9 488b9c2490000000 31c0 e8???????? 48898424f80a0000 }
		$sequence_4 = { c6041fc8 b903000000 e9???????? 4983f805 7545 4c8d4301 4c39c6 }
		$sequence_5 = { 4983f802 729b e9???????? 48894c2470 4889442460 48895c2468 488d442430 }
		$sequence_6 = { eb7d 488d5104 4889542468 488d05453c1700 4889cb 4889d1 e8???????? }
		$sequence_7 = { e8???????? 48899c24e0010000 4889d8 48c7c3ffffffff e8???????? 48898424e0030000 48899c24b0050000 }
		$sequence_8 = { e9???????? 4889842490010000 440f11bc24d0000000 440f11bc24d8000000 440f11bc24e8000000 488d8c24d0000000 48890c24 }
		$sequence_9 = { eb23 488b8424e8000000 48ffc0 488b942480010000 488bb424500b0000 488bbc24480b0000 4839d0 }

	condition:
		7 of them and filesize < 11612160
}

Strings (10 patterns)

IdentifierTypeValueModifiers
$sequence_0hex{ eb1c 4889c7 488b8c24f8250000 e8???????? 488d3d1b882200 e8???????? e8???????? }
$sequence_1hex{ e8???????? 488d3d4bb92200 e8???????? e8???????? 4889842488280000 48899c24580c0000 488b0d???????? }
$sequence_2hex{ ffd0 488b8c24f8000000 488b9c2410010000 488bbc2400010000 488b842408010000 488bac2420010000 4881c428010000 }
$sequence_3hex{ e8???????? 4889842478070000 4889d9 488b9c2490000000 31c0 e8???????? 48898424f80a0000 }
$sequence_4hex{ c6041fc8 b903000000 e9???????? 4983f805 7545 4c8d4301 4c39c6 }
$sequence_5hex{ 4983f802 729b e9???????? 48894c2470 4889442460 48895c2468 488d442430 }
$sequence_6hex{ eb7d 488d5104 4889542468 488d05453c1700 4889cb 4889d1 e8???????? }
$sequence_7hex{ e8???????? 48899c24e0010000 4889d8 48c7c3ffffffff e8???????? 48898424e0030000 48899c24b0050000 }
$sequence_8hex{ e9???????? 4889842490010000 440f11bc24d0000000 440f11bc24d8000000 440f11bc24e8000000 488d8c24d0000000 48890c24 }
$sequence_9hex{ eb23 488b8424e8000000 48ffc0 488b942480010000 488bb424500b0000 488bbc24480b0000 4839d0 }

Condition

7 of them and filesize < 11612160

In plain words (Heuristic)

  • The file must be smaller than 11612160 (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: dc33b31b-87dd-5cc5-b322-adc3955b0e56

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

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