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MALPEDIA_Win_Banjori_Auto

autogenerated rule brought to you by yara-signator

MalwareBanjoriMalpedia 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: Banjori.

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

Summary generated from the rule's metadata and condition.

Rule source

win-banjori-auto.yarCreative Commons Attribution-ShareAlike 4.0
rule MALPEDIA_Win_Banjori_Auto : FILE
{
	meta:
		description = "autogenerated rule brought to you by yara-signator"
		author = "Felix Bilstein - yara-signator at cocacoding dot com"
		id = "772db84e-ddd6-5cb7-aa80-8be342d89227"
		date = "2026-05-04"
		modified = "2026-05-18"
		reference = "https://malpedia.caad.fkie.fraunhofer.de/details/win.banjori"
		source_url = "https://github.com/malpedia/signator-rules//blob/c901f97b7df03e41917da74c2a84b04c227316c2/rules/win.banjori_auto.yar#L1-L133"
		license_url = "N/A"
		logic_hash = "93e1a29e08c992364ad1fdc8ebe64904f6aed3a76f1538e955dbeb1bc9cf87a5"
		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 = { ff75f4 ff15???????? ff75f8 ff15???????? 8b45fc c9 c3 }
		$sequence_1 = { 03c2 8945e8 03c2 8945d8 03c2 8945fc ff7508 }
		$sequence_2 = { e8???????? 85c0 0f8495020000 8945f8 8bf8 8b07 85c0 }
		$sequence_3 = { c745e008000000 8d45e0 50 8d45d0 50 53 53 }
		$sequence_4 = { ff15???????? ff35???????? ff75a8 ff15???????? 68???????? 50 ff15???????? }
		$sequence_5 = { 53 53 ffb5b4feffff ff15???????? ffb59cfeffff ff15???????? 8bc8 }
		$sequence_6 = { ff15???????? 83c410 ffb598feffff ffb59cfeffff e8???????? 85c0 0f8588000000 }
		$sequence_7 = { 53 53 6a01 53 68???????? ff75fc ff15???????? }
		$sequence_8 = { 7512 8d05d4e79500 50 ff35???????? e8???????? 68???????? 57 }
		$sequence_9 = { 885fff 56 ff75f4 ff15???????? ff75f4 ff15???????? }

	condition:
		7 of them and filesize < 139264
}

Strings (10 patterns)

IdentifierTypeValueModifiers
$sequence_0hex{ ff75f4 ff15???????? ff75f8 ff15???????? 8b45fc c9 c3 }
$sequence_1hex{ 03c2 8945e8 03c2 8945d8 03c2 8945fc ff7508 }
$sequence_2hex{ e8???????? 85c0 0f8495020000 8945f8 8bf8 8b07 85c0 }
$sequence_3hex{ c745e008000000 8d45e0 50 8d45d0 50 53 53 }
$sequence_4hex{ ff15???????? ff35???????? ff75a8 ff15???????? 68???????? 50 ff15???????? }
$sequence_5hex{ 53 53 ffb5b4feffff ff15???????? ffb59cfeffff ff15???????? 8bc8 }
$sequence_6hex{ ff15???????? 83c410 ffb598feffff ffb59cfeffff e8???????? 85c0 0f8588000000 }
$sequence_7hex{ 53 53 6a01 53 68???????? ff75fc ff15???????? }
$sequence_8hex{ 7512 8d05d4e79500 50 ff35???????? e8???????? 68???????? 57 }
$sequence_9hex{ 885fff 56 ff75f4 ff15???????? ff75f4 ff15???????? }

Condition

7 of them and filesize < 139264

In plain words (Heuristic)

  • The file must be smaller than 139264 (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: 772db84e-ddd6-5cb7-aa80-8be342d89227

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