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MALPEDIA_Win_Gibberish_Auto

autogenerated rule brought to you by yara-signator

MalwareGibberishMalpedia 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: Gibberish.

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

Summary generated from the rule's metadata and condition.

Rule source

win-gibberish-auto.yarCreative Commons Attribution-ShareAlike 4.0
rule MALPEDIA_Win_Gibberish_Auto : FILE
{
	meta:
		description = "autogenerated rule brought to you by yara-signator"
		author = "Felix Bilstein - yara-signator at cocacoding dot com"
		id = "dabe0f24-a1b2-5299-a720-964c2b47f198"
		date = "2026-05-04"
		modified = "2026-05-18"
		reference = "https://malpedia.caad.fkie.fraunhofer.de/details/win.gibberish"
		source_url = "https://github.com/malpedia/signator-rules//blob/c901f97b7df03e41917da74c2a84b04c227316c2/rules/win.gibberish_auto.yar#L1-L129"
		license_url = "N/A"
		logic_hash = "0fd641a87df9c560ffa0a7ce4891b10845798685bdc34c48ea50acb051b0f0b2"
		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 = { f7d8 be???????? 57 0fb6f8 03f9 81e6ff0f0000 8d9f0c010000 }
		$sequence_1 = { 0fb6c1 c1e908 895c2420 333cc5e1a14700 8b0ccde4a14700 0fb6c2 8b542410 }
		$sequence_2 = { 03c6 6a00 50 e8???????? 8b45ac 83c41c 83f8fc }
		$sequence_3 = { 53 8b5c2420 55 8be9 c744240800000000 56 }
		$sequence_4 = { 33c8 8b442414 c1c806 33c8 8b44241c 33c6 23442414 }
		$sequence_5 = { 83e904 e9???????? 83e920 e9???????? 83e920 e9???????? 83e904 }
		$sequence_6 = { 85c0 7e16 8b75e8 8b7dec e9???????? f30f7e4de8 0f1045d8 }
		$sequence_7 = { 50 8d0431 034588 50 8b458c 03c1 50 }
		$sequence_8 = { 0f8c87000000 8d46fc 8d0490 8d4bfc 8d0c91 3bd8 }
		$sequence_9 = { 8933 c7430400000000 8b4d0c 8d45dc }

	condition:
		7 of them and filesize < 1068032
}

Strings (10 patterns)

IdentifierTypeValueModifiers
$sequence_0hex{ f7d8 be???????? 57 0fb6f8 03f9 81e6ff0f0000 8d9f0c010000 }
$sequence_1hex{ 0fb6c1 c1e908 895c2420 333cc5e1a14700 8b0ccde4a14700 0fb6c2 8b542410 }
$sequence_2hex{ 03c6 6a00 50 e8???????? 8b45ac 83c41c 83f8fc }
$sequence_3hex{ 53 8b5c2420 55 8be9 c744240800000000 56 }
$sequence_4hex{ 33c8 8b442414 c1c806 33c8 8b44241c 33c6 23442414 }
$sequence_5hex{ 83e904 e9???????? 83e920 e9???????? 83e920 e9???????? 83e904 }
$sequence_6hex{ 85c0 7e16 8b75e8 8b7dec e9???????? f30f7e4de8 0f1045d8 }
$sequence_7hex{ 50 8d0431 034588 50 8b458c 03c1 50 }
$sequence_8hex{ 0f8c87000000 8d46fc 8d0490 8d4bfc 8d0c91 3bd8 }
$sequence_9hex{ 8933 c7430400000000 8b4d0c 8d45dc }

Condition

7 of them and filesize < 1068032

In plain words (Heuristic)

  • The file must be smaller than 1068032 (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: dabe0f24-a1b2-5299-a720-964c2b47f198

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