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MALPEDIA_Win_Mpkbot_Auto

autogenerated rule brought to you by yara-signator

MalwareMpkbotMalpedia 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: Mpkbot.

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

Summary generated from the rule's metadata and condition.

Rule source

win-mpkbot-auto.yarCreative Commons Attribution-ShareAlike 4.0
rule MALPEDIA_Win_Mpkbot_Auto : FILE
{
	meta:
		description = "autogenerated rule brought to you by yara-signator"
		author = "Felix Bilstein - yara-signator at cocacoding dot com"
		id = "bc1b8bdd-8001-5079-be14-f5c36d3d10ad"
		date = "2026-05-04"
		modified = "2026-05-18"
		reference = "https://malpedia.caad.fkie.fraunhofer.de/details/win.mpkbot"
		source_url = "https://github.com/malpedia/signator-rules//blob/c901f97b7df03e41917da74c2a84b04c227316c2/rules/win.mpkbot_auto.yar#L1-L120"
		license_url = "N/A"
		logic_hash = "67aecb7e8edf0aeb49c931f01e1e8cf13f73baf1a8fcba853c7ded9188a5c741"
		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 = { ffd6 8bd8 85db 740c }
		$sequence_1 = { c70028000000 895010 895014 894818 89481c 895020 }
		$sequence_2 = { 85c0 7fdf 5e 5b c9 c3 }
		$sequence_3 = { ff75f8 56 ff15???????? 8bd8 3bde 7507 }
		$sequence_4 = { 6a20 68???????? 68???????? 8975f8 8b08 50 ff5150 }
		$sequence_5 = { 56 57 6a00 ff15???????? 8bf0 0fb7450c }
		$sequence_6 = { ffe0 55 8bec 68???????? ff15???????? 68???????? }
		$sequence_7 = { 6689500e 33d2 c70028000000 895010 }
		$sequence_8 = { 384508 7507 38450c 740a eb05 }
		$sequence_9 = { ffd0 5d c3 68???????? ff15???????? 68???????? }

	condition:
		7 of them and filesize < 139264
}

Strings (10 patterns)

IdentifierTypeValueModifiers
$sequence_0hex{ ffd6 8bd8 85db 740c }
$sequence_1hex{ c70028000000 895010 895014 894818 89481c 895020 }
$sequence_2hex{ 85c0 7fdf 5e 5b c9 c3 }
$sequence_3hex{ ff75f8 56 ff15???????? 8bd8 3bde 7507 }
$sequence_4hex{ 6a20 68???????? 68???????? 8975f8 8b08 50 ff5150 }
$sequence_5hex{ 56 57 6a00 ff15???????? 8bf0 0fb7450c }
$sequence_6hex{ ffe0 55 8bec 68???????? ff15???????? 68???????? }
$sequence_7hex{ 6689500e 33d2 c70028000000 895010 }
$sequence_8hex{ 384508 7507 38450c 740a eb05 }
$sequence_9hex{ ffd0 5d c3 68???????? ff15???????? 68???????? }

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: bc1b8bdd-8001-5079-be14-f5c36d3d10ad

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