Yara Rule - SYSAID CVE-2023-47246에 대한 공격에 사용되는 Tutle 로더를 감지
Yara 정의.
Yara Rule - Detects Tutle loader used in attacks against SysAid CVE-2023-47246
Yara definition.
Author: Florian Roth
https://www.sysaid.com/blog/service-desk/on-premise-software-security-vulnerability-notification
score = 85
date = "2023-11-09"
$x1 = "if ($s -match '^(Sophos).*\\.exe\\s') {echo $s; $bp++;}" ascii wide
$x2 = "$s=$env:SehCore;$env:SehCore=\"\";Invoke-Expression $s;" ascii wide
date = "2023-11-09"
score = 85
hash1 = "b5acf14cdac40be590318dee95425d0746e85b1b7b1cbd14da66f21f2522bf4d"
$s1 = "No key in args!" ascii fullword
$s2 = "Bad data file!" ascii fullword
$s3 = "Data file loaded. Running..." ascii
$op1 = { 48 8d 55 c8 4c 8d 3d ac 8f 00 00 45 33 c9 45 33 d2 4d 8b e7 44 21 0a 45 33 db 4c 8d 3d 16 ec ff ff }
$op2 = { 48 d3 e8 0f b6 c8 49 03 cb 49 81 c3 00 01 00 00 45 33 8c 8f a0 e4 00 00 41 83 fa 04 7c c7 41 ff c0 }
$op3 = { 48 83 c1 04 48 ff ca 89 41 1c 75 ef 03 f6 48 83 c3 20 48 ff cd 0f 85 77 ff ff ff }
uint16(0) == 0x5a4d```
[https://github.com/Neo23x0/signature-base/commit/dbbd565cc454289488d6f241f08c2d333d21d43e](https://github.com/Neo23x0/signature-base/commit/dbbd565cc454289488d6f241f08c2d333d21d43e)