24 lines
943 B
Text
24 lines
943 B
Text
|
|
||
|
|
rule CrunchRAT {
|
||
|
|
meta:
|
||
|
|
description = "Detects CrunchRAT - file CrunchRAT.exe"
|
||
|
|
license = "Detection Rule License 1.1 https://github.com/Neo23x0/signature-base/blob/master/LICENSE"
|
||
|
|
author = "Florian Roth (Nextron Systems)"
|
||
|
|
reference = "https://github.com/t3ntman/CrunchRAT"
|
||
|
|
date = "2017-11-03"
|
||
|
|
hash1 = "58a07e96497745b6fd5075d569f17b0254c3e50b0234744e0487f7c5dddf7161"
|
||
|
|
id = "da7d9b5c-6ccc-5960-9daa-4df612545751"
|
||
|
|
strings:
|
||
|
|
$x1 = "----CrunchRAT" fullword wide
|
||
|
|
$x2 = "\\Debug\\CrunchRAT" ascii
|
||
|
|
$x3 = "\\Release\\CrunchRAT" ascii
|
||
|
|
|
||
|
|
$s1 = "runCommand" fullword ascii
|
||
|
|
$s2 = "<action>download<action>" fullword wide
|
||
|
|
$s3 = "Content-Disposition: form-data; name=action" fullword wide
|
||
|
|
$s4 = "<action>upload<action>" fullword wide
|
||
|
|
$s5 = "/update.php" fullword wide
|
||
|
|
condition:
|
||
|
|
uint16(0) == 0x5a4d and filesize < 40KB and ( 1 of ($x*) and 3 of them )
|
||
|
|
}
|