TrojanDownloader_Win32_Vifuls_A

YARA detection rule by roadwy

TrojanDownloader:Win32/Vifuls.A,SIGNATURE_TYPE_PEHSTR_EXT,08 00 08 00 05 00 00

rule TrojanDownloader_Win32_Vifuls_A{
	meta:
		description = "TrojanDownloader:Win32/Vifuls.A,SIGNATURE_TYPE_PEHSTR_EXT,08 00 08 00 05 00 00 "
		
	strings :
		$a_03_0 = {2e 74 6d 70 [0-40] 2e 65 78 65 } 		$a_03_1 = {73 73 7a 7a 7a [0-40] 4b 42 [0-40] 2e 65 78 65 } 		$a_03_2 = {74 65 78 74 2f 68 74 6d 6c [0-02] 2a 2f 2a [0-10] 4d 6f 7a 69 6c 6c 61 2f 33 2e 30 20 28 63 6f 6d 70 61 74 69 62 6c 65 3b 20 49 6e 64 79 20 4c 69 62 72 61 72 79 29 } 		$a_01_3 = {51 30 41 31 38 31 35 45 42 32 45 46 32 50 } 		$a_01_4 = {68 74 70 63 6c 74 } 	condition:
		((#a_03_0  & 1)*2+(#a_03_1  & 1)*2+(#a_03_2  & 1)*2+(#a_01_3  & 1)*2+(#a_01_4  & 1)*2) >=8
 
}

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

34ca88c7-3975-4c92-b92e-e405f7fce2c1

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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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