34 lines
566 B
Text
34 lines
566 B
Text
|
global rule isExecutable
|
||
|
|
{
|
||
|
|
meta:
|
||
|
|
author="73mp74710n"
|
||
|
|
description="Yara rule to check for unobfuscated rat created with njrat"
|
||
|
|
strings:
|
||
|
|
$MZ = { 4D 5A 90 00 }
|
||
|
|
$PE = { 50 45 00 00 }
|
||
|
|
condition:
|
||
|
|
$MZ at 0 and $PE
|
||
|
|
|
||
|
|
}
|
||
|
|
|
||
|
|
/*
|
||
|
|
|
||
|
|
rule njRat
|
||
|
|
{
|
||
|
|
|
||
|
|
strings:
|
||
|
|
$firewallDelete = "firewall delete allowed " wide
|
||
|
|
$firewallAdded = "firewall add" wide
|
||
|
|
|
||
|
|
/*ftw, ping ??*/
|
||
|
|
/* $ping = "ping" wide
|
||
|
|
|
||
|
|
/*regular expressoin to match an ip address*/
|
||
|
|
/* $regularExp = /([0-9]{1,3}\.){3}[0-9]{1,3}/ wide
|
||
|
|
|
||
|
|
condition:
|
||
|
|
any of ($firewall*) or $ping or $regularExp
|
||
|
|
|
||
|
|
}
|
||
|
|
|
||
|
|
*/
|