TrojanDownloader_O97M_Lazust_YL

YARA detection rule by roadwy

TrojanDownloader:O97M/Lazust.YL,SIGNATURE_TYPE_MACROHSTR_EXT,15 00 15 00 05 00 00

rule TrojanDownloader_O97M_Lazust_YL{
	meta:
		description = "TrojanDownloader:O97M/Lazust.YL,SIGNATURE_TYPE_MACROHSTR_EXT,15 00 15 00 05 00 00 "
		
	strings :
		$a_00_0 = {44 65 63 6c 61 72 65 20 50 74 72 53 61 66 65 20 46 75 6e 63 74 69 6f 6e 20 57 69 6e 45 78 65 63 20 4c 69 62 20 22 6b 65 72 6e 65 6c 33 32 22 } 		$a_00_1 = {61 75 72 69 3d } 		$a_00_2 = {63 7a 69 6e 66 6f 2e 63 6c 75 62 2f 63 6f 6d 6d 6f 6e 2e 70 68 70 } 		$a_00_3 = {70 65 67 61 73 75 73 63 6f 2e 6e 65 74 2f 61 63 69 64 65 2e 70 68 70 } 		$a_00_4 = {73 6d 69 6c 65 6b 65 65 70 65 72 73 2e 63 6f 2f 73 6d 69 6c 65 2e 70 68 70 } 	condition:
		((#a_00_0  & 1)*1+(#a_00_1  & 1)*1+(#a_00_2  & 1)*20+(#a_00_3  & 1)*20+(#a_00_4  & 1)*20) >=21
 
}

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

d886c869-a306-4c1d-bee0-c6f9e5da3018

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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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