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MALPEDIA_Win_Recordbreaker_Auto

autogenerated rule brought to you by yara-signator

MalwareRecordbreakerMalpedia 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: Recordbreaker.

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

Summary generated from the rule's metadata and condition.

Rule source

win-recordbreaker-auto.yarCreative Commons Attribution-ShareAlike 4.0
rule MALPEDIA_Win_Recordbreaker_Auto : FILE
{
	meta:
		description = "autogenerated rule brought to you by yara-signator"
		author = "Felix Bilstein - yara-signator at cocacoding dot com"
		id = "08560daa-5fe8-595e-9dbc-a441ed4bb00d"
		date = "2026-05-04"
		modified = "2026-05-18"
		reference = "https://malpedia.caad.fkie.fraunhofer.de/details/win.recordbreaker"
		source_url = "https://github.com/malpedia/signator-rules//blob/c901f97b7df03e41917da74c2a84b04c227316c2/rules/win.recordbreaker_auto.yar#L1-L121"
		license_url = "N/A"
		logic_hash = "0c3c04c3e787bdbde6eff7122bcf70b1628690be33e8fdffdc0fb66bd4e37294"
		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 = { ff15???????? 83c8ff eb2f ff35???????? }
		$sequence_1 = { e8???????? 8b15???????? 8bc8 e8???????? 8b55f0 }
		$sequence_2 = { 51 8b4dfc 8975d0 e8???????? }
		$sequence_3 = { 7407 56 ff15???????? 837db400 7409 ff75b4 }
		$sequence_4 = { ff15???????? 57 ff750c 8bf0 ff15???????? 83c410 }
		$sequence_5 = { 037d10 40 8901 a5 a5 a5 a5 }
		$sequence_6 = { ff751c ff7518 ff7510 ff750c 53 53 e8???????? }
		$sequence_7 = { 8bd9 663bc8 7416 6a22 8bc2 }
		$sequence_8 = { 8bd6 e8???????? 8b15???????? 8bc8 8903 e8???????? }
		$sequence_9 = { 33c0 50 50 6a04 50 6a01 6800000080 }

	condition:
		7 of them and filesize < 232312
}

Strings (10 patterns)

IdentifierTypeValueModifiers
$sequence_0hex{ ff15???????? 83c8ff eb2f ff35???????? }
$sequence_1hex{ e8???????? 8b15???????? 8bc8 e8???????? 8b55f0 }
$sequence_2hex{ 51 8b4dfc 8975d0 e8???????? }
$sequence_3hex{ 7407 56 ff15???????? 837db400 7409 ff75b4 }
$sequence_4hex{ ff15???????? 57 ff750c 8bf0 ff15???????? 83c410 }
$sequence_5hex{ 037d10 40 8901 a5 a5 a5 a5 }
$sequence_6hex{ ff751c ff7518 ff7510 ff750c 53 53 e8???????? }
$sequence_7hex{ 8bd9 663bc8 7416 6a22 8bc2 }
$sequence_8hex{ 8bd6 e8???????? 8b15???????? 8bc8 8903 e8???????? }
$sequence_9hex{ 33c0 50 50 6a04 50 6a01 6800000080 }

Condition

7 of them and filesize < 232312

In plain words (Heuristic)

  • The file must be smaller than 232312 (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: 08560daa-5fe8-595e-9dbc-a441ed4bb00d

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