TrojanDownloader_Win32_Yemrok_A

YARA detection rule by roadwy

TrojanDownloader:Win32/Yemrok.A,SIGNATURE_TYPE_PEHSTR_EXT,03 00 02 00 04 00 00

rule TrojanDownloader_Win32_Yemrok_A{
	meta:
		description = "TrojanDownloader:Win32/Yemrok.A,SIGNATURE_TYPE_PEHSTR_EXT,03 00 02 00 04 00 00 "
		
	strings :
		$a_01_0 = {5c 00 5c 00 2e 00 5c 00 66 00 75 00 63 00 6b 00 33 00 36 00 30 00 00 00 } 		$a_01_1 = {5c 25 63 25 63 25 63 25 63 25 63 2e 65 78 65 00 } 		$a_00_2 = {48 41 52 44 57 41 52 45 5c 44 45 53 43 52 49 50 54 49 4f 4e 5c 53 79 73 74 65 6d 5c 43 65 6e 74 72 61 6c 50 72 6f 63 65 73 73 6f 72 5c 30 } 		$a_03_3 = {5c 53 74 61 72 74 20 4d 65 6e 75 5c 50 72 6f 67 72 61 6d 73 5c 53 74 61 72 74 75 70 5c ?? ?? 2e 65 78 65 } 	condition:
		((#a_01_0  & 1)*1+(#a_01_1  & 1)*1+(#a_00_2  & 1)*1+(#a_03_3  & 1)*1) >=2
 
}

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

09845040-3934-4a28-a818-a5fe4ead1c97

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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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