Skip to content

YARA · Malpedia signator rules

MALPEDIA_Win_Bedep_Auto

autogenerated rule brought to you by yara-signator

MalwareBedepMalpedia 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: Bedep.

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

Summary generated from the rule's metadata and condition.

Rule source

win-bedep-auto.yarCreative Commons Attribution-ShareAlike 4.0
rule MALPEDIA_Win_Bedep_Auto : FILE
{
	meta:
		description = "autogenerated rule brought to you by yara-signator"
		author = "Felix Bilstein - yara-signator at cocacoding dot com"
		id = "147a95ed-f45b-5c4b-8cf3-c78a1e2ee891"
		date = "2026-05-04"
		modified = "2026-05-18"
		reference = "https://malpedia.caad.fkie.fraunhofer.de/details/win.bedep"
		source_url = "https://github.com/malpedia/signator-rules//blob/c901f97b7df03e41917da74c2a84b04c227316c2/rules/win.bedep_auto.yar#L1-L133"
		license_url = "N/A"
		logic_hash = "34cac102e630f654981eed7cf86b59f05bd62306480fc321271de8c9f2a30c4a"
		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 = { c21000 55 8bec 83ec14 85c0 6a2b 5a }
		$sequence_1 = { 3d02010000 6a81 5f 742a 385e04 7509 83f801 }
		$sequence_2 = { 895c2430 90 e8???????? 6a60 6a01 6800001000 8d44243c }
		$sequence_3 = { ff7618 e8???????? 8bc7 5f c9 c3 55 }
		$sequence_4 = { 7c21 8d442418 50 8d442414 50 90 }
		$sequence_5 = { b8e0000000 7403 83c008 53 8d4df4 51 53 }
		$sequence_6 = { e8???????? 8d45fc 50 e8???????? 8bf8 eb03 8b7df8 }
		$sequence_7 = { 8d65ec 5f 5e 5b c9 c20c00 55 }
		$sequence_8 = { e8???????? 3bc3 8945f0 7c31 e8???????? 85c0 7405 }
		$sequence_9 = { ff7638 ff742438 50 8d442450 50 ff742438 8d442438 }

	condition:
		7 of them and filesize < 557056
}

Strings (10 patterns)

IdentifierTypeValueModifiers
$sequence_0hex{ c21000 55 8bec 83ec14 85c0 6a2b 5a }
$sequence_1hex{ 3d02010000 6a81 5f 742a 385e04 7509 83f801 }
$sequence_2hex{ 895c2430 90 e8???????? 6a60 6a01 6800001000 8d44243c }
$sequence_3hex{ ff7618 e8???????? 8bc7 5f c9 c3 55 }
$sequence_4hex{ 7c21 8d442418 50 8d442414 50 90 }
$sequence_5hex{ b8e0000000 7403 83c008 53 8d4df4 51 53 }
$sequence_6hex{ e8???????? 8d45fc 50 e8???????? 8bf8 eb03 8b7df8 }
$sequence_7hex{ 8d65ec 5f 5e 5b c9 c20c00 55 }
$sequence_8hex{ e8???????? 3bc3 8945f0 7c31 e8???????? 85c0 7405 }
$sequence_9hex{ ff7638 ff742438 50 8d442450 50 ff742438 8d442438 }

Condition

7 of them and filesize < 557056

In plain words (Heuristic)

  • The file must be smaller than 557056 (a cheap guard that skips large files).
  • At least 7 patterns in the rule must match.

Test this rule in your browser

Drop a file to scan it with this rule using YARA-X compiled to WebAssembly. Nothing is uploaded.

Drop a file here or click to chooseScanned locally with YARA-X. Files up to 200 MB.

Open in editor

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: 147a95ed-f45b-5c4b-8cf3-c78a1e2ee891

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