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MALPEDIA_Win_Gooseegg_Auto

autogenerated rule brought to you by yara-signator

MalwareGooseeggMalpedia 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: Gooseegg.

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

Summary generated from the rule's metadata and condition.

Rule source

win-gooseegg-auto.yarCreative Commons Attribution-ShareAlike 4.0
rule MALPEDIA_Win_Gooseegg_Auto : FILE
{
	meta:
		description = "autogenerated rule brought to you by yara-signator"
		author = "Felix Bilstein - yara-signator at cocacoding dot com"
		id = "d8132454-9f6e-5d45-ae4a-e06046e4b7c3"
		date = "2026-05-04"
		modified = "2026-05-18"
		reference = "https://malpedia.caad.fkie.fraunhofer.de/details/win.gooseegg"
		source_url = "https://github.com/malpedia/signator-rules//blob/c901f97b7df03e41917da74c2a84b04c227316c2/rules/win.gooseegg_auto.yar#L1-L120"
		license_url = "N/A"
		logic_hash = "8983b8f0c526551207a00c2d480777794912cb3a61999ef4b05b249edd7a0003"
		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 = { 4d85c9 488d3d797c0000 488bc2 4c8bfa 4d0f45d1 4885d2 418d6b01 }
		$sequence_1 = { 488d05f1550100 c3 488d05f1550100 c3 4883ec28 e8???????? }
		$sequence_2 = { eb02 33db 4c8d357194ffff 4885db }
		$sequence_3 = { ff15???????? 48832300 4883c308 488d05b9440100 483bd8 }
		$sequence_4 = { 488d35abe70000 48895c2420 488d056fff0000 483bd8 7419 483933 740e }
		$sequence_5 = { 488b05???????? 488d150ef7ffff 483bc2 7423 65488b042530000000 }
		$sequence_6 = { 4c8d0dd17b0000 33c9 4c8d05c47b0000 488d15c57b0000 e8???????? 4885c0 740b }
		$sequence_7 = { 488945e0 895128 488d0dbb940000 488b45d8 488908 488d0d0d190100 488b45d8 }
		$sequence_8 = { 8bfb e9???????? e8???????? 488d1df2370100 }
		$sequence_9 = { 85c0 0f849e000000 4c8d051f330100 ba00020000 }

	condition:
		7 of them and filesize < 217088
}

Strings (10 patterns)

IdentifierTypeValueModifiers
$sequence_0hex{ 4d85c9 488d3d797c0000 488bc2 4c8bfa 4d0f45d1 4885d2 418d6b01 }
$sequence_1hex{ 488d05f1550100 c3 488d05f1550100 c3 4883ec28 e8???????? }
$sequence_2hex{ eb02 33db 4c8d357194ffff 4885db }
$sequence_3hex{ ff15???????? 48832300 4883c308 488d05b9440100 483bd8 }
$sequence_4hex{ 488d35abe70000 48895c2420 488d056fff0000 483bd8 7419 483933 740e }
$sequence_5hex{ 488b05???????? 488d150ef7ffff 483bc2 7423 65488b042530000000 }
$sequence_6hex{ 4c8d0dd17b0000 33c9 4c8d05c47b0000 488d15c57b0000 e8???????? 4885c0 740b }
$sequence_7hex{ 488945e0 895128 488d0dbb940000 488b45d8 488908 488d0d0d190100 488b45d8 }
$sequence_8hex{ 8bfb e9???????? e8???????? 488d1df2370100 }
$sequence_9hex{ 85c0 0f849e000000 4c8d051f330100 ba00020000 }

Condition

7 of them and filesize < 217088

In plain words (Heuristic)

  • The file must be smaller than 217088 (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: d8132454-9f6e-5d45-ae4a-e06046e4b7c3

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