Trojan_AndroidOS_Grifthorse_A

YARA detection rule by roadwy

Trojan:AndroidOS/Grifthorse.A,SIGNATURE_TYPE_DEXHSTR_EXT,05 00 05 00 05 00 00

rule Trojan_AndroidOS_Grifthorse_A{
	meta:
		description = "Trojan:AndroidOS/Grifthorse.A,SIGNATURE_TYPE_DEXHSTR_EXT,05 00 05 00 05 00 00 "
		
	strings :
		$a_01_0 = {4c 63 6f 6d 2f 72 65 63 64 65 6c 2f 65 74 64 70 72 6f } 		$a_01_1 = {4c 63 6f 6d 2f 64 73 6c 72 63 6d 2f 66 6f 63 70 72 31 } 		$a_01_2 = {74 63 45 45 44 45 75 36 75 53 48 56 4c 45 66 63 34 70 78 62 71 34 } 		$a_01_3 = {32 48 73 69 55 70 56 72 52 73 71 47 56 56 4a 4b 70 35 76 50 56 43 } 		$a_01_4 = {6f 70 65 6e 5f 77 62 3d } 	condition:
		((#a_01_0  & 1)*2+(#a_01_1  & 1)*2+(#a_01_2  & 1)*2+(#a_01_3  & 1)*2+(#a_01_4  & 1)*1) >=5
 
}

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

01526885-0b51-4da1-8202-aa91d5b285f8

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