signature-base/yara/apt_turla_kazuar.yar

import "pe"
/*
	"dbgsview.exe"
	Agent.exe
	"adflctlmon.exe"

	d3429016-d029-45b8-b260-85221265838e
	76b7b11a-4124-448b-9903-15524e321f3f
	2cde886e-ee24-496a-bb31-1ced6b766ced

	imphash
	f34d5f2d4577ed6d9ceec516c1f5a744
*/

rule apt_RU_Turla_Kazuar_DebugView_peFeatures
{
	meta:
		description = "Turla mimicking SysInternals Tools- peFeatures"
        reference = "https://www.epicturla.com/blog/sysinturla"
		version = "2.0"
		author = "JAG-S"
        score = 85
		hash1 = "1749c96cc1a4beb9ad4d6e037e40902fac31042fa40152f1d3794f49ed1a2b5c"
		hash2 = "44cc7f6c2b664f15b499c7d07c78c110861d2cc82787ddaad28a5af8efc3daac"

	condition:
		uint16(0) == 0x5a4d
		and
		(
			pe.version_info["LegalCopyright"] == "Test Copyright" 
			and
			(
				(
				pe.version_info["ProductName"] == "Sysinternals DebugView"
				and
				pe.version_info["Description"] == "Sysinternals DebugView"
				)
			or
				(
				pe.version_info["FileVersion"] == "4.80.0.0"
				and
				pe.version_info["Comments"] == "Sysinternals DebugView"
				)
			or
				(
				pe.version_info["OriginalName"] contains "DebugView.exe"
				and
				pe.version_info["InternalName"] contains "DebugView.exe"
				)
			or
				(
				pe.version_info["OriginalName"] == "Agent.exe"
				and
				pe.version_info["InternalName"] == "Agent.exe"
				)
			)
		)
}

rule APT_MAL_RU_Turla_Kazuar_May20_1 {
   meta:
      description = "Detects Turla Kazuar malware"
      author = "Florian Roth"
      reference = "https://www.epicturla.com/blog/sysinturla"
      date = "2020-05-28"
      hash1 = "1749c96cc1a4beb9ad4d6e037e40902fac31042fa40152f1d3794f49ed1a2b5c"
      hash2 = "1fca5f41211c800830c5f5c3e355d31a05e4c702401a61f11e25387e25eeb7fa"
      hash3 = "2d8151dabf891cf743e67c6f9765ee79884d024b10d265119873b0967a09b20f"
      hash4 = "44cc7f6c2b664f15b499c7d07c78c110861d2cc82787ddaad28a5af8efc3daac"
   strings:
      $s1 = "Sysinternals" ascii fullword
	  $s2 = "Test Copyright" wide fullword

      $op1 = { 0d 01 00 08 34 2e 38 30 2e 30 2e 30 00 00 13 01 }
   condition:
      uint16(0) == 0x5a4d and
      filesize < 2000KB and
      all of them
}