TrojanDownloader_Win32_Navattle_A

YARA detection rule by roadwy

TrojanDownloader:Win32/Navattle.A,SIGNATURE_TYPE_PEHSTR_EXT,03 00 03 00 05 00 00

rule TrojanDownloader_Win32_Navattle_A{
	meta:
		description = "TrojanDownloader:Win32/Navattle.A,SIGNATURE_TYPE_PEHSTR_EXT,03 00 03 00 05 00 00 "
		
	strings :
		$a_01_0 = {5c 42 61 74 74 6c 65 2e 6e 65 74 00 00 43 6f 6e 73 65 6e 74 50 72 6f 6d 70 74 42 65 68 61 76 69 6f 72 41 64 6d 69 6e } 		$a_01_1 = {2e 6e 61 76 65 72 2e 63 6f 6d 2f 00 00 00 49 64 65 6e 74 69 74 79 } 		$a_01_2 = {68 74 74 70 3a 2f 2f 00 2e 65 78 65 00 00 00 00 2e 67 69 66 00 00 00 00 52 75 6e 61 73 } 		$a_01_3 = {5c 52 75 6e 00 00 00 6e 75 73 62 33 6d 6f 6e 2e 65 78 65 } 		$a_01_4 = {8a 55 f8 88 11 8b 45 f4 83 c0 01 89 45 f4 8b 4d fc 83 c1 03 89 4d fc eb a2 } 	condition:
		((#a_01_0  & 1)*1+(#a_01_1  & 1)*1+(#a_01_2  & 1)*1+(#a_01_3  & 1)*1+(#a_01_4  & 1)*1) >=3
 
}

[[ currentRule.title && currentRule.title.length > 60 ? currentRule.title.slice(0, 60) + '…' : currentRule.title ]]

84e51429-58f0-4f79-8460-2be4edcecec7

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Executable code, not a declarative rule

This submission is arbitrary [[ currentRule.format ? currentRule.format.toUpperCase() : '' ]] code, not a declarative detection rule — review it as you would any script before running it, and note that it cannot be safely aggregated or auto-executed alongside YARA/Sigma/Suricata/CRS rules.

Rejected pattern present

[[ reason ]]

What does this mean?

Format & documentation suggestions

Not a security issue — this rule is valid and was accepted as-is. These are optional fields/conventions its own format recommends, mainly affecting its quality score and how well it documents itself for other reviewers.

[[ reason ]]

What do these messages mean?

[[ currentRule.title && currentRule.title.length > 60 ? currentRule.title.slice(0, 60) + '…' : currentRule.title ]]

[[ currentRule.title ]]

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