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MALPEDIA_Win_Gsecdump_Auto

autogenerated rule brought to you by yara-signator

MalwareGsecdumpMalpedia 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: Gsecdump.

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

Summary generated from the rule's metadata and condition.

Rule source

win-gsecdump-auto.yarCreative Commons Attribution-ShareAlike 4.0
rule MALPEDIA_Win_Gsecdump_Auto : FILE
{
	meta:
		description = "autogenerated rule brought to you by yara-signator"
		author = "Felix Bilstein - yara-signator at cocacoding dot com"
		id = "ac0f1259-48d6-5710-9bf8-dfea66b044a0"
		date = "2026-05-04"
		modified = "2026-05-18"
		reference = "https://malpedia.caad.fkie.fraunhofer.de/details/win.gsecdump"
		source_url = "https://github.com/malpedia/signator-rules//blob/c901f97b7df03e41917da74c2a84b04c227316c2/rules/win.gsecdump_auto.yar#L1-L130"
		license_url = "N/A"
		logic_hash = "a236e3d0edda486728d4449a675bdc3d6e98110f787f5aa48c1ed0d849c090de"
		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 = { 8be9 2bef 7510 8bce e8???????? 5f 5d }
		$sequence_1 = { 7205 e8???????? 8b4704 8b3cf0 53 be0f000000 68???????? }
		$sequence_2 = { 8bc7 75ee 5f 8b4c2410 8b542414 8b4604 8b00 }
		$sequence_3 = { 33c4 898424a8000000 56 57 ff15???????? 8bf8 }
		$sequence_4 = { 85d2 8bea 7426 83f910 8bc2 7307 }
		$sequence_5 = { 56 8d4c2418 e8???????? 8b54246c 8d4c2414 51 52 }
		$sequence_6 = { 660dffff c3 ff742408 8b01 6aff ff74240c }
		$sequence_7 = { 3bf0 7605 e8???????? 56 8d842488000000 50 8d44244c }
		$sequence_8 = { e8???????? 8344241001 8b7c2420 33db e9???????? 83fe02 0f85a4000000 }
		$sequence_9 = { 8b4c2424 394e04 751f 807f4000 0f8590fdffff 8b4c2414 }

	condition:
		7 of them and filesize < 630784
}

Strings (10 patterns)

IdentifierTypeValueModifiers
$sequence_0hex{ 8be9 2bef 7510 8bce e8???????? 5f 5d }
$sequence_1hex{ 7205 e8???????? 8b4704 8b3cf0 53 be0f000000 68???????? }
$sequence_2hex{ 8bc7 75ee 5f 8b4c2410 8b542414 8b4604 8b00 }
$sequence_3hex{ 33c4 898424a8000000 56 57 ff15???????? 8bf8 }
$sequence_4hex{ 85d2 8bea 7426 83f910 8bc2 7307 }
$sequence_5hex{ 56 8d4c2418 e8???????? 8b54246c 8d4c2414 51 52 }
$sequence_6hex{ 660dffff c3 ff742408 8b01 6aff ff74240c }
$sequence_7hex{ 3bf0 7605 e8???????? 56 8d842488000000 50 8d44244c }
$sequence_8hex{ e8???????? 8344241001 8b7c2420 33db e9???????? 83fe02 0f85a4000000 }
$sequence_9hex{ 8b4c2424 394e04 751f 807f4000 0f8590fdffff 8b4c2414 }

Condition

7 of them and filesize < 630784

In plain words (Heuristic)

  • The file must be smaller than 630784 (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: ac0f1259-48d6-5710-9bf8-dfea66b044a0

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