Skip to content

YARA · Malpedia signator rules

MALPEDIA_Win_Greetingghoul_Auto

autogenerated rule brought to you by yara-signator

MalwareGreetingghoulMalpedia 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: Greetingghoul.

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

Summary generated from the rule's metadata and condition.

Rule source

win-greetingghoul-auto.yarCreative Commons Attribution-ShareAlike 4.0
rule MALPEDIA_Win_Greetingghoul_Auto : FILE
{
	meta:
		description = "autogenerated rule brought to you by yara-signator"
		author = "Felix Bilstein - yara-signator at cocacoding dot com"
		id = "6c14af68-da6d-5b24-80f0-48ba293ab79e"
		date = "2026-05-04"
		modified = "2026-05-18"
		reference = "https://malpedia.caad.fkie.fraunhofer.de/details/win.greetingghoul"
		source_url = "https://github.com/malpedia/signator-rules//blob/c901f97b7df03e41917da74c2a84b04c227316c2/rules/win.greetingghoul_auto.yar#L1-L120"
		license_url = "N/A"
		logic_hash = "a220e01958d87b5b4883dc4814107cea0d517f5f46c560bd7a2ca6b3d563b9c4"
		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 = { 8d7f01 8a08 886dff 3acd 750c 40 }
		$sequence_1 = { 7409 8b7df8 4e 43 85f6 }
		$sequence_2 = { 891e 85db 746f 8b7508 }
		$sequence_3 = { 41 84c0 7405 83ea01 75eb 8b5dfc }
		$sequence_4 = { 8d1438 6a20 8903 e8???????? 83c404 85c0 }
		$sequence_5 = { 6a01 e8???????? 83c404 85c0 7e02 }
		$sequence_6 = { 8b7508 0f57c0 57 660fd603 33ff c6430800 c70600000000 }
		$sequence_7 = { 3bcb 7d24 83c8ff 33d2 f7f3 }
		$sequence_8 = { 8d4801 51 e8???????? 8b0b 83c404 }
		$sequence_9 = { 8bd0 8bcf 85c0 7442 85ff 743e 0f1f4000 }

	condition:
		7 of them and filesize < 696320
}

Strings (10 patterns)

IdentifierTypeValueModifiers
$sequence_0hex{ 8d7f01 8a08 886dff 3acd 750c 40 }
$sequence_1hex{ 7409 8b7df8 4e 43 85f6 }
$sequence_2hex{ 891e 85db 746f 8b7508 }
$sequence_3hex{ 41 84c0 7405 83ea01 75eb 8b5dfc }
$sequence_4hex{ 8d1438 6a20 8903 e8???????? 83c404 85c0 }
$sequence_5hex{ 6a01 e8???????? 83c404 85c0 7e02 }
$sequence_6hex{ 8b7508 0f57c0 57 660fd603 33ff c6430800 c70600000000 }
$sequence_7hex{ 3bcb 7d24 83c8ff 33d2 f7f3 }
$sequence_8hex{ 8d4801 51 e8???????? 8b0b 83c404 }
$sequence_9hex{ 8bd0 8bcf 85c0 7442 85ff 743e 0f1f4000 }

Condition

7 of them and filesize < 696320

In plain words (Heuristic)

  • The file must be smaller than 696320 (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: 6c14af68-da6d-5b24-80f0-48ba293ab79e

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