Sneed-Reactivity/yara-mikesxrs/Mandiant/slowpulse.yar

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// Copyright 2021 by FireEye, Inc.
// You may not use this file except in compliance with the license. The license should have been received with this file.
rule FE_APT_Backdoor_Linux32_SLOWPULSE_1
{
meta:
author = "Mandiant"
date_created = "2021-04-16"
sha256 = "cd09ec795a8f4b6ced003500a44d810f49943514e2f92c81ab96c33e1c0fbd68"
reference_url = "https://www.fireeye.com/blog/threat-research/2021/04/suspected-apt-actors-leverage-bypass-techniques-pulse-secure-zero-day.html"
strings:
$sb1 = {FC b9 [4] e8 00 00 00 00 5? 8d b? [4] 8b}
$sb2 = {f3 a6 0f 85 [4] b8 03 00 00 00 5? 5? 5?}
$sb3 = {9c 60 e8 00 00 00 00 5? 8d [5] 85 ?? 0f 8?}
$sb4 = {89 13 8b 51 04 89 53 04 8b 51 08 89 53 08}
$sb5 = {8d [5] b9 [4] f3 a6 0f 8?}
condition:
((uint32(0) == 0x464c457f) and (uint8(4) == 1)) and all of them
}