Trojan_BAT_SmallDownloader_RK_MTB

YARA detection rule by roadwy

Trojan:BAT/SmallDownloader.RK!MTB,SIGNATURE_TYPE_PEHSTR_EXT,05 00 05 00 05 00 00

rule Trojan_BAT_SmallDownloader_RK_MTB{
	meta:
		description = "Trojan:BAT/SmallDownloader.RK!MTB,SIGNATURE_TYPE_PEHSTR_EXT,05 00 05 00 05 00 00 "
		
	strings :
		$a_81_0 = {68 74 74 70 73 3a 2f 2f 31 30 30 74 68 72 65 61 64 73 2e 30 30 30 77 65 62 68 6f 73 74 61 70 70 2e 63 6f 6d 2f 74 65 73 74 2e 74 78 74 } 		$a_01_1 = {43 3a 5c 55 73 65 72 73 5c 41 64 72 69 61 6e 5c 73 6f 75 72 63 65 5c 72 65 70 6f 73 5c 55 70 64 61 74 65 72 50 72 6f 5c 55 70 64 61 74 65 72 50 72 6f 5c 6f 62 6a 5c 44 65 62 75 67 5c 55 70 64 61 74 65 72 50 72 6f 2e 70 64 62 } 		$a_01_2 = {63 6d 64 2e 65 78 65 } 		$a_01_3 = {44 6f 77 6e 6c 6f 61 64 44 61 74 61 } 		$a_01_4 = {55 70 64 61 74 65 72 50 72 6f } 	condition:
		((#a_81_0  & 1)*1+(#a_01_1  & 1)*1+(#a_01_2  & 1)*1+(#a_01_3  & 1)*1+(#a_01_4  & 1)*1) >=5
 
}

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

6d5e79e9-a722-476f-a54a-7f6a3ef42a4b

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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 ]]

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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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