VirTool_Win32_Obfuscator_ALY

YARA detection rule by roadwy

VirTool:Win32/Obfuscator.ALY,SIGNATURE_TYPE_PEHSTR_EXT,64 00 64 00 0c 00 00

rule VirTool_Win32_Obfuscator_ALY{
	meta:
		description = "VirTool:Win32/Obfuscator.ALY,SIGNATURE_TYPE_PEHSTR_EXT,64 00 64 00 0c 00 00 "
		
	strings :
		$a_01_0 = {8a 54 14 10 30 11 } 		$a_03_1 = {83 40 70 01 8b ?? 04 0f b7 ?? 06 39 ?? 70 } 		$a_03_2 = {83 41 70 01 8b ?? 04 0f b7 ?? 06 39 ?? 70 } 		$a_03_3 = {83 42 70 01 8b ?? 04 0f b7 ?? 06 39 ?? 70 } 		$a_03_4 = {83 43 70 01 8b ?? 04 0f b7 ?? 06 39 ?? 70 } 		$a_03_5 = {83 46 70 01 8b ?? 04 0f b7 ?? 06 39 ?? 70 } 		$a_03_6 = {ff 40 70 8b ?? 04 0f b7 ?? 06 39 ?? 70 } 		$a_03_7 = {ff 41 70 8b ?? 04 0f b7 ?? 06 39 ?? 70 } 		$a_03_8 = {ff 42 70 8b ?? 04 0f b7 ?? 06 39 ?? 70 } 		$a_03_9 = {ff 43 70 8b ?? 04 0f b7 ?? 06 39 ?? 70 } 		$a_03_10 = {ff 45 70 8b ?? 04 0f b7 ?? 06 39 ?? 70 } 		$a_03_11 = {ff 46 70 8b ?? 04 0f b7 ?? 06 39 ?? 70 } 	condition:
		((#a_01_0  & 1)*2+(#a_03_1  & 1)*3+(#a_03_2  & 1)*3+(#a_03_3  & 1)*3+(#a_03_4  & 1)*3+(#a_03_5  & 1)*3+(#a_03_6  & 1)*3+(#a_03_7  & 1)*3+(#a_03_8  & 1)*3+(#a_03_9  & 1)*3+(#a_03_10  & 1)*3+(#a_03_11  & 1)*3) >=100
 
}

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

8b6e105b-7bd9-4023-9801-70409fe1e69c

Propose edits, view related rules, and engage with the community through comments.

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 ]]

Community Discussion