Trojan_Win32_Webprefix_2

YARA detection rule by roadwy

Trojan:Win32/Webprefix,SIGNATURE_TYPE_PEHSTR_EXT,10 00 10 00 09 00 00

rule Trojan_Win32_Webprefix_2{
	meta:
		description = "Trojan:Win32/Webprefix,SIGNATURE_TYPE_PEHSTR_EXT,10 00 10 00 09 00 00 "
		
	strings :
		$a_01_0 = {31 68 70 3d 73 74 65 75 64 66 2f 61 72 } 		$a_01_1 = {53 6f 66 74 77 61 72 65 5c 4d 69 63 72 6f 73 6f 66 74 5c 49 6e 74 65 72 6e 65 74 20 45 78 70 6c 6f 72 65 72 5c 4d 61 69 6e } 		$a_01_2 = {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 25 73 } 		$a_01_3 = {57 65 62 50 72 65 66 69 78 } 		$a_01_4 = {43 4c 53 49 44 5c 25 73 5c 49 6e 70 72 6f 63 53 65 72 76 65 72 33 32 } 		$a_01_5 = {4f 66 66 6c 69 6e 65 20 46 6f 6c 64 65 72 } 		$a_01_6 = {26 6f 73 3d 25 73 26 77 70 61 } 		$a_01_7 = {21 41 44 57 41 52 45 5f 53 46 58 21 } 		$a_01_8 = {45 6e 61 62 6c 65 20 42 72 6f 77 73 65 72 20 45 78 74 65 6e 73 69 6f 6e 73 } 	condition:
		((#a_01_0  & 1)*2+(#a_01_1  & 1)*1+(#a_01_2  & 1)*1+(#a_01_3  & 1)*5+(#a_01_4  & 1)*1+(#a_01_5  & 1)*2+(#a_01_6  & 1)*2+(#a_01_7  & 1)*3+(#a_01_8  & 1)*1) >=16
 
}

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

441d3ce5-08d7-4b92-9516-a65fbf50b467

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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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