VirTool_Win32_CobaltStrike_A_2

YARA detection rule by roadwy

VirTool:Win32/CobaltStrike.A,SIGNATURE_TYPE_PEHSTR_EXT,0b 00 0b 00 06 00 00

rule VirTool_Win32_CobaltStrike_A_2{
	meta:
		description = "VirTool:Win32/CobaltStrike.A,SIGNATURE_TYPE_PEHSTR_EXT,0b 00 0b 00 06 00 00 "
		
	strings :
		$a_03_0 = {3d 00 10 00 00 90 0a 0d 00 80 b0 ?? ?? ?? ?? 2e 40 } 		$a_01_1 = {89 10 89 50 04 89 48 08 89 48 0c c3 } 		$a_03_2 = {83 7e 08 04 73 03 33 c0 c3 8b 46 04 ff 30 e8 ?? ?? ?? ?? 83 46 04 04 83 46 08 fc c3 } 		$a_03_3 = {83 7e 08 02 73 03 33 c0 c3 8b 46 04 0f b7 00 50 e8 ?? ?? ?? ?? 83 46 04 02 83 46 08 fe 0f b7 c0 c3 } 		$a_01_4 = {8b 07 8b 57 04 83 c7 08 85 c0 75 2c } 		$a_01_5 = {8b 06 8b 56 04 83 c6 08 85 c0 75 23 } 	condition:
		((#a_03_0  & 1)*5+(#a_01_1  & 1)*1+(#a_03_2  & 1)*1+(#a_03_3  & 1)*1+(#a_01_4  & 1)*5+(#a_01_5  & 1)*5) >=11
 
}

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

233d9f33-3fcd-49c6-8db1-5e27440165bf

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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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