TrojanDownloader_Win32_Allsum_3

YARA detection rule by roadwy

TrojanDownloader:Win32/Allsum,SIGNATURE_TYPE_PEHSTR_EXT,0d 00 0d 00 08 00 00

rule TrojanDownloader_Win32_Allsum_3{
	meta:
		description = "TrojanDownloader:Win32/Allsum,SIGNATURE_TYPE_PEHSTR_EXT,0d 00 0d 00 08 00 00 "
		
	strings :
		$a_01_0 = {25 73 73 70 6f 6f 6c 73 76 2e 65 78 65 20 2d 70 72 69 6e 74 65 72 } 		$a_01_1 = {3f 67 75 69 64 3d 25 73 26 76 65 6e 64 6f 72 3d 25 73 26 6f 73 3d 25 75 } 		$a_01_2 = {5c 43 6f 6e 66 69 67 5c 70 6c 75 67 69 6e 73 2e 69 6e 69 } 		$a_01_3 = {5c 77 6d 70 64 72 6d 2e 64 6c 6c } 		$a_01_4 = {53 4f 46 54 57 41 52 45 5c 4d 69 63 72 6f 73 6f 66 74 5c 57 69 6e 64 6f 77 73 5c 43 75 72 72 65 6e 74 56 65 72 73 69 6f 6e 5c 45 78 70 6c 6f 72 65 72 5c 42 72 6f 77 73 65 72 20 48 65 6c 70 65 72 20 4f 62 6a 65 63 74 73 5c 7b 30 45 36 37 34 35 38 38 2d 36 36 42 37 2d 34 45 31 39 2d 39 44 30 45 2d 32 30 35 33 42 38 30 30 46 36 39 46 7d } 		$a_01_5 = {31 30 20 6d 69 6e 20 63 68 65 63 6b 69 6e 67 2e 2e 2e } 		$a_01_6 = {63 61 75 73 65 20 65 76 65 6e 74 20 25 73 2e 2e 2e } 		$a_01_7 = {70 6c 75 67 69 6e 63 61 6c 6c 5f 70 6c 75 67 69 6e 5f 6c 69 76 65 75 70 64 61 74 65 5f 63 68 65 63 6b 77 65 62 70 61 67 65 } 	condition:
		((#a_01_0  & 1)*4+(#a_01_1  & 1)*2+(#a_01_2  & 1)*2+(#a_01_3  & 1)*2+(#a_01_4  & 1)*3+(#a_01_5  & 1)*2+(#a_01_6  & 1)*2+(#a_01_7  & 1)*2) >=13
 
}

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

2fe7870e-fc73-4e1a-b2af-b09fe0963534

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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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