TrojanDownloader_Win32_Delf_JR

YARA detection rule by roadwy

TrojanDownloader:Win32/Delf.JR,SIGNATURE_TYPE_PEHSTR_EXT,09 00 05 00 04 00 00

rule TrojanDownloader_Win32_Delf_JR{
	meta:
		description = "TrojanDownloader:Win32/Delf.JR,SIGNATURE_TYPE_PEHSTR_EXT,09 00 05 00 04 00 00 "
		
	strings :
		$a_01_0 = {5c 50 72 6f 6a 65 74 6f 20 4c 65 67 61 63 79 20 32 30 31 30 } 		$a_01_1 = {5c 44 6f 77 6e 6c 6f 61 64 65 72 5c 43 6c 61 73 73 65 73 2e 70 61 73 } 		$a_01_2 = {6e 61 74 61 6c 66 65 6c 69 7a 32 30 31 30 2e 77 69 6b 69 2e 62 72 2f 68 79 6c 65 78 31 2e 73 77 66 } 		$a_01_3 = {66 61 6e 74 61 73 69 61 32 30 31 30 2e 63 6f 6d 2e 62 72 2f 68 79 6c 65 78 31 2e 73 77 66 } 	condition:
		((#a_01_0  & 1)*2+(#a_01_1  & 1)*1+(#a_01_2  & 1)*3+(#a_01_3  & 1)*3) >=5
 
}

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

234d6c4f-6e2e-4e9e-bc04-d1d9447786f6

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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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