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MALPEDIA_Win_Gopuram_Auto

autogenerated rule brought to you by yara-signator

MalwareGopuramMalpedia 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: Gopuram.

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

Summary generated from the rule's metadata and condition.

Rule source

win-gopuram-auto.yarCreative Commons Attribution-ShareAlike 4.0
rule MALPEDIA_Win_Gopuram_Auto : FILE
{
	meta:
		description = "autogenerated rule brought to you by yara-signator"
		author = "Felix Bilstein - yara-signator at cocacoding dot com"
		id = "d46ee5bd-52d4-54a5-be53-0334cf5f9913"
		date = "2026-05-04"
		modified = "2026-05-18"
		reference = "https://malpedia.caad.fkie.fraunhofer.de/details/win.gopuram"
		source_url = "https://github.com/malpedia/signator-rules//blob/c901f97b7df03e41917da74c2a84b04c227316c2/rules/win.gopuram_auto.yar#L1-L134"
		license_url = "N/A"
		logic_hash = "871d50c153fa123d087ade67947bc98f3c1ee58497592ec0f7d9b8f854054f61"
		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 = { 488d4df0 e8???????? 8b4584 ffc0 894584 483b45b0 7323 }
		$sequence_1 = { 83c804 83e017 894210 854214 7509 488d05c6cbfdff eb0a }
		$sequence_2 = { 85c0 488b01 400f94c6 ff9080010000 41b973020000 4c8d05c7ad0700 8bd6 }
		$sequence_3 = { e8???????? 4c8d05882a0600 41b91c230000 8bd7 498bce c744242000000000 e8???????? }
		$sequence_4 = { 488b6c2438 488b5c2430 488b4f10 4c897708 ff15???????? 488b4f18 4c897710 }
		$sequence_5 = { 488d0550aa0500 488945a0 0f1005???????? 0f294590 33ff 4889bc24b0000000 488d4da0 }
		$sequence_6 = { 8bd8 ba04000000 498bcf e8???????? 33c9 894c2420 41b9c0100000 }
		$sequence_7 = { 8bd3 488bc8 e8???????? 8905???????? 85c0 753f 498b0e }
		$sequence_8 = { eb21 4533ff 44897c2420 41b940010000 4c8d05b9990400 8bd6 498bce }
		$sequence_9 = { e9???????? 488b442440 410fb74c0728 81e1ff0f0000 8d4180 83f802 760c }

	condition:
		7 of them and filesize < 1591296
}

Strings (10 patterns)

IdentifierTypeValueModifiers
$sequence_0hex{ 488d4df0 e8???????? 8b4584 ffc0 894584 483b45b0 7323 }
$sequence_1hex{ 83c804 83e017 894210 854214 7509 488d05c6cbfdff eb0a }
$sequence_2hex{ 85c0 488b01 400f94c6 ff9080010000 41b973020000 4c8d05c7ad0700 8bd6 }
$sequence_3hex{ e8???????? 4c8d05882a0600 41b91c230000 8bd7 498bce c744242000000000 e8???????? }
$sequence_4hex{ 488b6c2438 488b5c2430 488b4f10 4c897708 ff15???????? 488b4f18 4c897710 }
$sequence_5hex{ 488d0550aa0500 488945a0 0f1005???????? 0f294590 33ff 4889bc24b0000000 488d4da0 }
$sequence_6hex{ 8bd8 ba04000000 498bcf e8???????? 33c9 894c2420 41b9c0100000 }
$sequence_7hex{ 8bd3 488bc8 e8???????? 8905???????? 85c0 753f 498b0e }
$sequence_8hex{ eb21 4533ff 44897c2420 41b940010000 4c8d05b9990400 8bd6 498bce }
$sequence_9hex{ e9???????? 488b442440 410fb74c0728 81e1ff0f0000 8d4180 83f802 760c }

Condition

7 of them and filesize < 1591296

In plain words (Heuristic)

  • The file must be smaller than 1591296 (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: d46ee5bd-52d4-54a5-be53-0334cf5f9913

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

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