TrojanDownloader_BAT_Vesad_A

YARA detection rule by roadwy

TrojanDownloader:BAT/Vesad.A,SIGNATURE_TYPE_PEHSTR_EXT,03 00 03 00 04 00 00

rule TrojanDownloader_BAT_Vesad_A{
	meta:
		description = "TrojanDownloader:BAT/Vesad.A,SIGNATURE_TYPE_PEHSTR_EXT,03 00 03 00 04 00 00 "
		
	strings :
		$a_03_0 = {73 34 76 65 5f 61 64 73 ?? 2e 65 78 65 00 } 		$a_03_1 = {73 34 76 65 5f 61 64 73 ?? 2e 50 72 6f 70 65 72 74 69 65 73 00 } 		$a_03_2 = {5c 44 6f 63 75 6d 65 6e 74 73 5c 56 69 73 75 61 6c 20 53 74 75 64 69 6f 20 32 30 31 30 5c 50 72 6f 6a 65 63 74 73 5c 73 34 76 65 5f 61 64 73 ?? 5c 73 34 76 65 5f 61 64 73 ?? 5c 6f 62 6a 5c 78 38 36 5c 52 65 6c 65 61 73 65 5c 73 34 76 65 5f 61 64 73 ?? 2e 70 64 62 00 } 		$a_01_3 = {61 64 64 5f 44 6f 77 6e 6c 6f 61 64 46 69 6c 65 43 6f 6d 70 6c 65 74 65 64 00 } 	condition:
		((#a_03_0  & 1)*1+(#a_03_1  & 1)*1+(#a_03_2  & 1)*1+(#a_01_3  & 1)*1) >=3
 
}

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

b6b208c9-60b1-4e44-9158-9b79dfddc050

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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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