24 lines
1.1 KiB
Text
24 lines
1.1 KiB
Text
rule webshell_java_behinder_shellservice : Webshells Commodity
|
|
{
|
|
meta:
|
|
author = "threatintel@volexity.com"
|
|
description = "Looks for artifacts generated (generally seen in .class files) related to the Behinder framework."
|
|
date = "2022-03-18"
|
|
hash1 = "9a9882f9082a506ed0fc4ddaedd50570c5762deadcaf789ac81ecdbb8cf6eff2"
|
|
license = "See license at https://github.com/volexity/threat-intel/blob/main/LICENSE.txt"
|
|
reference = "https://github.com/MountCloud/BehinderClientSource/blob/master/src/main/java/net/rebeyond/behinder/core/ShellService.java"
|
|
reference2 = "https://www.volexity.com/blog/2022/06/15/driftingcloud-zero-day-sophos-firewall-exploitation-and-an-insidious-breach/"
|
|
memory_suitable = 1
|
|
|
|
strings:
|
|
$s1 = "CONNECT" ascii fullword
|
|
$s2 = "DISCONNECT" ascii fullword
|
|
$s3 = "socket_" ascii fullword
|
|
$s4 = "targetIP" ascii fullword
|
|
$s5 = "targetPort" ascii fullword
|
|
$s6 = "socketHash" ascii fullword
|
|
$s7 = "extraData" ascii fullword
|
|
|
|
condition:
|
|
all of them
|
|
}
|