26 lines
1,019 B
Text
26 lines
1,019 B
Text
rule apt_rb_rokrat_loader : InkySquid
|
|
{
|
|
meta:
|
|
author = "threatintel@volexity.com"
|
|
description = "Ruby loader seen loading the ROKRAT malware family."
|
|
reference = "https://www.volexity.com/blog/2021/08/24/north-korean-bluelight-special-inkysquid-deploys-rokrat/"
|
|
date = "2021-06-22"
|
|
hash1 = "5bc52f6c1c0d0131cee30b4f192ce738ad70bcb56e84180f464a5125d1a784b2"
|
|
license = "See license at https://github.com/volexity/threat-intel/blob/main/LICENSE.txt"
|
|
|
|
strings:
|
|
$magic1 = "'https://update.microsoft.com/driverupdate?id=" ascii wide
|
|
$magic2 = "sVHZv1mCNYDO0AzI';" ascii wide
|
|
$magic3 = "firoffset..scupd.size" ascii wide
|
|
$magic4 = /alias UrlFilter[0-9]{2,5} eval;"/
|
|
|
|
// Original: 'Fiddle::Pointer' (Reversed)
|
|
$s1 = "clRnbp9GU6oTZsRGZpZ"
|
|
$s2 = "RmlkZGxlOjpQb2ludGVy"
|
|
$s3 = "yVGdul2bQpjOlxGZklmR"
|
|
$s4 = "XZ05WavBlO6UGbkRWaG"
|
|
|
|
condition:
|
|
any of ($magic*) or
|
|
any of ($s*)
|
|
}
|