TrojanDownloader_Win32_Matcash_A

YARA detection rule by roadwy

TrojanDownloader:Win32/Matcash.A,SIGNATURE_TYPE_PEHSTR_EXT,05 00 05 00 06 00 00

rule TrojanDownloader_Win32_Matcash_A{
	meta:
		description = "TrojanDownloader:Win32/Matcash.A,SIGNATURE_TYPE_PEHSTR_EXT,05 00 05 00 06 00 00 "
		
	strings :
		$a_00_0 = {73 68 65 6c 6c 5c 6f 70 65 6e 5c 63 6f 6d 6d 61 6e 64 } 		$a_01_1 = {6d 63 62 6f 6f 2e 63 6f 6d 2f 72 65 74 61 64 70 75 2e 65 78 65 } 		$a_01_2 = {6d 63 62 6f 6f 2e 63 6f 6d 2f 75 70 64 61 74 65 72 2e 65 78 65 } 		$a_01_3 = {6e 61 6d 65 20 66 6f 72 20 25 73 } 		$a_01_4 = {61 66 66 49 44 } 		$a_00_5 = {47 65 74 57 69 6e 64 6f 77 73 44 69 72 65 63 74 6f 72 79 41 } 	condition:
		((#a_00_0  & 1)*1+(#a_01_1  & 1)*2+(#a_01_2  & 1)*2+(#a_01_3  & 1)*1+(#a_01_4  & 1)*1+(#a_00_5  & 1)*1) >=5
 
}

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

829ab6cc-5165-4dbc-9b5e-c4e3456c9be4

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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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