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MALPEDIA_Win_Broler_Auto

autogenerated rule brought to you by yara-signator

MalwareBrolerMalpedia 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: Broler.

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

Summary generated from the rule's metadata and condition.

Rule source

win-broler-auto.yarCreative Commons Attribution-ShareAlike 4.0
rule MALPEDIA_Win_Broler_Auto : FILE
{
	meta:
		description = "autogenerated rule brought to you by yara-signator"
		author = "Felix Bilstein - yara-signator at cocacoding dot com"
		id = "eb6df9f0-2da3-5a4e-8f19-bc9c64435ce5"
		date = "2026-05-04"
		modified = "2026-05-18"
		reference = "https://malpedia.caad.fkie.fraunhofer.de/details/win.broler"
		source_url = "https://github.com/malpedia/signator-rules//blob/c901f97b7df03e41917da74c2a84b04c227316c2/rules/win.broler_auto.yar#L1-L125"
		license_url = "N/A"
		logic_hash = "db1febc359ff2ef3b46431432b39f10a7c85b60f194ad8eed00b389b369e2de8"
		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 = { 51 6a01 53 ff15???????? 8bf0 ff15???????? 3bf3 }
		$sequence_1 = { 8a08 880c02 40 84c9 75f6 3975b0 }
		$sequence_2 = { c785c0feffff0f000000 899dbcfeffff 889dacfeffff 39b5a4feffff }
		$sequence_3 = { 8bf0 8d45d4 3bc6 7461 837de810 720c 8b4dd4 }
		$sequence_4 = { 57 8d8da8feffff e8???????? 83c408 33c0 8a4c05f0 8888f8cd4100 }
		$sequence_5 = { 8b3d???????? 53 ffd7 56 ffd7 8d8d70fdffff }
		$sequence_6 = { e9???????? bf2a000000 b8???????? 8db5acfdffff c785c0fdffff0f000000 899dbcfdffff 889dacfdffff }
		$sequence_7 = { 8bdf c1fb18 c1f818 81e3ff000000 3283085a4100 8b5d0c }
		$sequence_8 = { 3299085a4100 c1fe08 81e6ff000000 8bca c1f908 88580d }
		$sequence_9 = { c20400 5e 83c8ff 5b 5d }

	condition:
		7 of them and filesize < 275456
}

Strings (10 patterns)

IdentifierTypeValueModifiers
$sequence_0hex{ 51 6a01 53 ff15???????? 8bf0 ff15???????? 3bf3 }
$sequence_1hex{ 8a08 880c02 40 84c9 75f6 3975b0 }
$sequence_2hex{ c785c0feffff0f000000 899dbcfeffff 889dacfeffff 39b5a4feffff }
$sequence_3hex{ 8bf0 8d45d4 3bc6 7461 837de810 720c 8b4dd4 }
$sequence_4hex{ 57 8d8da8feffff e8???????? 83c408 33c0 8a4c05f0 8888f8cd4100 }
$sequence_5hex{ 8b3d???????? 53 ffd7 56 ffd7 8d8d70fdffff }
$sequence_6hex{ e9???????? bf2a000000 b8???????? 8db5acfdffff c785c0fdffff0f000000 899dbcfdffff 889dacfdffff }
$sequence_7hex{ 8bdf c1fb18 c1f818 81e3ff000000 3283085a4100 8b5d0c }
$sequence_8hex{ 3299085a4100 c1fe08 81e6ff000000 8bca c1f908 88580d }
$sequence_9hex{ c20400 5e 83c8ff 5b 5d }

Condition

7 of them and filesize < 275456

In plain words (Heuristic)

  • The file must be smaller than 275456 (a cheap guard that skips large files).
  • At least 7 patterns in the rule must match.

Test this rule in your browser

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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: eb6df9f0-2da3-5a4e-8f19-bc9c64435ce5

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