TrojanDownloader_Win32_Asnep_A

YARA detection rule by roadwy

TrojanDownloader:Win32/Asnep.A,SIGNATURE_TYPE_PEHSTR_EXT,0e 00 0e 00 07 00 00

rule TrojanDownloader_Win32_Asnep_A{
	meta:
		description = "TrojanDownloader:Win32/Asnep.A,SIGNATURE_TYPE_PEHSTR_EXT,0e 00 0e 00 07 00 00 "
		
	strings :
		$a_01_0 = {5c 64 6e 66 2e 65 78 65 } 		$a_01_1 = {42 6c 61 63 6b 4d 6f 6f 6e 20 52 75 6e 54 69 6d 65 20 45 72 72 6f 72 3a } 		$a_01_2 = {43 6f 6e 74 65 6e 74 2d 54 72 61 6e 73 66 65 72 2d 45 6e 63 6f 64 69 6e 67 3a 20 62 61 73 65 36 34 } 		$a_01_3 = {2f 63 72 61 73 73 2e 65 78 65 } 		$a_01_4 = {2f 73 79 73 74 65 72 6e 2e 62 69 6e } 		$a_01_5 = {5c 73 76 63 68 6f 74 2e 65 78 65 } 		$a_01_6 = {35 31 38 70 65 6e 67 2e 63 6f 6d } 	condition:
		((#a_01_0  & 1)*2+(#a_01_1  & 1)*2+(#a_01_2  & 1)*2+(#a_01_3  & 1)*5+(#a_01_4  & 1)*5+(#a_01_5  & 1)*5+(#a_01_6  & 1)*5) >=14
 
}

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

4cc4cfd5-2d18-4b98-be95-0dd58855a16d

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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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