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MALPEDIA_Win_Gameover_Dga_Auto

autogenerated rule brought to you by yara-signator

MalwareGameover DgaMalpedia 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: Gameover Dga.

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

Summary generated from the rule's metadata and condition.

Rule source

win-gameover-dga-auto.yarCreative Commons Attribution-ShareAlike 4.0
rule MALPEDIA_Win_Gameover_Dga_Auto : FILE
{
	meta:
		description = "autogenerated rule brought to you by yara-signator"
		author = "Felix Bilstein - yara-signator at cocacoding dot com"
		id = "d0deb00f-20bf-54ee-ac2a-b815bfa3a04c"
		date = "2026-05-04"
		modified = "2026-05-18"
		reference = "https://malpedia.caad.fkie.fraunhofer.de/details/win.gameover_dga"
		source_url = "https://github.com/malpedia/signator-rules//blob/c901f97b7df03e41917da74c2a84b04c227316c2/rules/win.gameover_dga_auto.yar#L1-L125"
		license_url = "N/A"
		logic_hash = "6853ca875b9922eee85be901a94422b237b8c9ab90a04ee28a8354c1b76df52d"
		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 = { 7505 83c8ff eb27 837c240c00 7417 6b460860 6a60 }
		$sequence_1 = { 8bc2 2bc1 89442474 8bc3 2bc1 0fb64d05 89442478 }
		$sequence_2 = { 50 6a07 6800000080 ff7508 ff15???????? 89442410 }
		$sequence_3 = { 8bdf 397e10 7625 8b460c 8d4c2418 03c3 89442424 }
		$sequence_4 = { 84c0 0f8488000000 8b35???????? 57 8b3d???????? }
		$sequence_5 = { 7422 6a00 6a01 ba???????? 33c9 }
		$sequence_6 = { ffb4245c010000 52 8b542448 e8???????? 85c0 0f8534010000 8b6c2438 }
		$sequence_7 = { 6a08 50 56 c645f400 }
		$sequence_8 = { 740a 48 0f8527100000 800e80 8b542414 8a4e17 }
		$sequence_9 = { 8b4c2410 eb05 6a05 58 8bc8 69f860ea0000 69c160ea0000 }

	condition:
		7 of them and filesize < 540672
}

Strings (10 patterns)

IdentifierTypeValueModifiers
$sequence_0hex{ 7505 83c8ff eb27 837c240c00 7417 6b460860 6a60 }
$sequence_1hex{ 8bc2 2bc1 89442474 8bc3 2bc1 0fb64d05 89442478 }
$sequence_2hex{ 50 6a07 6800000080 ff7508 ff15???????? 89442410 }
$sequence_3hex{ 8bdf 397e10 7625 8b460c 8d4c2418 03c3 89442424 }
$sequence_4hex{ 84c0 0f8488000000 8b35???????? 57 8b3d???????? }
$sequence_5hex{ 7422 6a00 6a01 ba???????? 33c9 }
$sequence_6hex{ ffb4245c010000 52 8b542448 e8???????? 85c0 0f8534010000 8b6c2438 }
$sequence_7hex{ 6a08 50 56 c645f400 }
$sequence_8hex{ 740a 48 0f8527100000 800e80 8b542414 8a4e17 }
$sequence_9hex{ 8b4c2410 eb05 6a05 58 8bc8 69f860ea0000 69c160ea0000 }

Condition

7 of them and filesize < 540672

In plain words (Heuristic)

  • The file must be smaller than 540672 (a cheap guard that skips large files).
  • At least 7 patterns in the rule must match.

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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: d0deb00f-20bf-54ee-ac2a-b815bfa3a04c

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