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MALPEDIA_Win_Adylkuzz_Auto

autogenerated rule brought to you by yara-signator

MalwareAdylkuzzMalpedia 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: Adylkuzz.

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

Summary generated from the rule's metadata and condition.

Rule source

win-adylkuzz-auto.yarCreative Commons Attribution-ShareAlike 4.0
rule MALPEDIA_Win_Adylkuzz_Auto : FILE
{
	meta:
		description = "autogenerated rule brought to you by yara-signator"
		author = "Felix Bilstein - yara-signator at cocacoding dot com"
		id = "ca8dca20-e3d7-5d06-90fd-034768625e2b"
		date = "2026-05-04"
		modified = "2026-05-18"
		reference = "https://malpedia.caad.fkie.fraunhofer.de/details/win.adylkuzz"
		source_url = "https://github.com/malpedia/signator-rules//blob/c901f97b7df03e41917da74c2a84b04c227316c2/rules/win.adylkuzz_auto.yar#L1-L134"
		license_url = "N/A"
		logic_hash = "2df82c6d65aebe8e209b022c559158db7c65d3182ae1b0a804c91d82c76f6903"
		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 = { eb41 83f805 7529 8b4310 8b4804 8d5104 83faf6 }
		$sequence_1 = { e8???????? 89c6 eb18 85f6 7914 897c2408 c744240469060000 }
		$sequence_2 = { 98 86e4 9c 6623c7 0fbaf814 8f442500 66f7d0 }
		$sequence_3 = { e8???????? ebf2 8b4314 c1e80a eb4b 8b4314 25ff030000 }
		$sequence_4 = { ff510c 8b4618 85c0 7428 807e0700 7f22 c1e003 }
		$sequence_5 = { b801000000 7522 8b06 0fb74006 89442404 8b442420 890424 }
		$sequence_6 = { 8b442420 f644241480 894350 8a442425 884354 8a442426 884355 }
		$sequence_7 = { f9 35281d135f f8 c1c803 81fda95ea722 f8 663bfb }
		$sequence_8 = { f7d0 85ed f6c637 f5 f7d8 c1c003 f7d8 }
		$sequence_9 = { c3 8b442408 8b542404 c7400400000000 895008 8d500c 8910 }

	condition:
		7 of them and filesize < 6438912
}

Strings (10 patterns)

IdentifierTypeValueModifiers
$sequence_0hex{ eb41 83f805 7529 8b4310 8b4804 8d5104 83faf6 }
$sequence_1hex{ e8???????? 89c6 eb18 85f6 7914 897c2408 c744240469060000 }
$sequence_2hex{ 98 86e4 9c 6623c7 0fbaf814 8f442500 66f7d0 }
$sequence_3hex{ e8???????? ebf2 8b4314 c1e80a eb4b 8b4314 25ff030000 }
$sequence_4hex{ ff510c 8b4618 85c0 7428 807e0700 7f22 c1e003 }
$sequence_5hex{ b801000000 7522 8b06 0fb74006 89442404 8b442420 890424 }
$sequence_6hex{ 8b442420 f644241480 894350 8a442425 884354 8a442426 884355 }
$sequence_7hex{ f9 35281d135f f8 c1c803 81fda95ea722 f8 663bfb }
$sequence_8hex{ f7d0 85ed f6c637 f5 f7d8 c1c003 f7d8 }
$sequence_9hex{ c3 8b442408 8b542404 c7400400000000 895008 8d500c 8910 }

Condition

7 of them and filesize < 6438912

In plain words (Heuristic)

  • The file must be smaller than 6438912 (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: ca8dca20-e3d7-5d06-90fd-034768625e2b

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