TrojanDownloader_O97M_Qakbot_NQRS_MTB

YARA detection rule by roadwy

TrojanDownloader:O97M/Qakbot.NQRS!MTB,SIGNATURE_TYPE_MACROHSTR_EXT,05 00 05 00 05 00 00

rule TrojanDownloader_O97M_Qakbot_NQRS_MTB{
	meta:
		description = "TrojanDownloader:O97M/Qakbot.NQRS!MTB,SIGNATURE_TYPE_MACROHSTR_EXT,05 00 05 00 05 00 00 "
		
	strings :
		$a_01_0 = {53 68 65 65 74 73 28 22 53 68 65 65 74 35 22 29 2e 52 61 6e 67 65 28 22 49 31 37 22 29 20 3d 20 22 72 65 67 73 76 72 33 32 20 2d 73 69 6c 65 6e 74 20 2e 2e 5c 58 65 72 74 69 73 2e 64 6c 6c 22 } 		$a_01_1 = {53 68 65 65 74 73 28 22 53 68 65 65 74 35 22 29 2e 52 61 6e 67 65 28 22 48 31 30 22 29 20 3d 20 22 3d 42 79 75 6b 69 6c 6f 73 28 30 2c 48 32 34 26 4b 31 37 26 4b 31 38 2c 47 31 30 2c 30 2c 30 29 22 } 		$a_01_2 = {26 20 22 45 58 45 43 28 49 31 37 29 22 } 		$a_01_3 = {53 68 65 65 74 73 28 22 53 68 65 65 74 35 22 29 2e 52 61 6e 67 65 28 22 4b 31 38 22 29 20 3d 20 22 2e 64 61 74 22 } 		$a_01_4 = {2e 52 61 6e 67 65 28 22 48 32 34 22 29 20 3d 20 55 73 65 72 46 6f 72 6d 31 2e 4c 61 62 65 6c 31 2e 43 61 70 74 69 6f 6e } 	condition:
		((#a_01_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 ]]

3bc081d1-a51e-4b45-9624-4437ba531652

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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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