TrojanDownloader_O97M_Qakbot_KAQA_MTB

YARA detection rule by roadwy

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

rule TrojanDownloader_O97M_Qakbot_KAQA_MTB{
	meta:
		description = "TrojanDownloader:O97M/Qakbot.KAQA!MTB,SIGNATURE_TYPE_MACROHSTR_EXT,05 00 05 00 05 00 00 "
		
	strings :
		$a_01_0 = {42 79 74 72 75 79 20 3d 20 22 52 22 20 26 20 22 45 22 20 26 20 22 47 22 20 26 20 22 49 22 20 26 20 22 53 54 45 52 } 		$a_01_1 = {53 68 65 65 74 73 28 22 44 69 6f 6c 61 72 65 22 29 2e 52 61 6e 67 65 28 22 4b 31 38 22 29 20 3d 20 22 2e 64 22 20 26 20 22 61 22 20 26 20 22 74 } 		$a_01_2 = {53 68 65 65 74 73 28 22 44 69 6f 6c 61 72 65 22 29 2e 52 61 6e 67 65 28 22 41 31 3a 4d 31 30 30 22 29 2e 46 6f 6e 74 2e 43 6f 6c 6f 72 20 3d 20 76 62 57 68 69 74 65 } 		$a_01_3 = {53 68 65 65 74 73 28 22 44 69 6f 6c 61 72 65 22 29 2e 52 61 6e 67 65 28 22 49 31 32 22 29 20 3d 20 22 42 79 75 6b 69 6c 6f 73 } 		$a_01_4 = {53 68 65 65 74 73 28 22 44 69 6f 6c 61 72 65 22 29 2e 52 61 6e 67 65 28 22 49 31 39 22 29 20 3d 20 4c 6f 69 75 20 26 20 22 32 } 	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 ]]

c279d1ed-647a-4191-af47-0897714308e2

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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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