backdoor_xploitspy_strings

YARA detection rule by Sekoia.io · GPL-2.0

Detects XploitSPY DEX file

rule backdoor_xploitspy_strings {
  meta:
    id             = "0aa86c2e-dba6-4ef4-a47e-f1b43e04f1f3"
    version        = "1.0"
    description    = "Detects XploitSPY DEX file"
    author         = "Sekoia.io"
    creation_date  = "2022-08-24"
    classification = "TLP:CLEAR"

  strings:
    $ = { 04 30 78 43 42 00 }
    $ = { 04 30 78 43 4C 00 }
    $ = { 04 30 78 43 4F 00 }
    $ = { 04 30 78 46 49 00 }
    $ = { 04 30 78 47 50 00 }
    $ = { 04 30 78 49 4E 00 }
    $ = { 04 30 78 4C 4F 00 }
    $ = { 04 30 78 4D 49 00 }
    $ = { 04 30 78 4E 4F 00 }
    $ = { 04 30 78 50 4D 00 }
    $ = { 04 30 78 53 4D 00 }
    $ = { 04 30 78 57 49 00 }

  condition:
    uint32be(0) == 0x6465780A and
    filesize < 1MB and
    10 of them
}

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

a9d3a656-89be-405f-85a8-0410ed3b56af

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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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