rule Batch_Script_To_Run_PsExec {
   meta:
      author = "NCSC"
      description = "Detects malicious batch file from NCSC report"
      reference = "https://www.ncsc.gov.uk/alerts/hostile-state-actors-compromising-uk-organisations-focus-engineering-and-industrial-control"
      date = "2018/04/06"
      hash = "b7d7c4bc8f9fd0e461425747122a431f93062358ed36ce281147998575ee1a18"
      id = "1fbeeec8-a5bd-569e-b435-c7d82d32e47b"
   strings:
      $ = "Tokens=1 delims=" ascii
      $ = "SET ws=%1" ascii
      $ = "Checking %ws%" ascii
      $ = "%TEMP%\\%ws%ns.txt" ascii
      $ = "ps.exe -accepteula" ascii
   condition:
      3 of them
}

rule Casper_SystemInformation_Output {
	meta:
		description = "Casper French Espionage Malware - System Info Output - http://goo.gl/VRJNLo"
		license = "Detection Rule License 1.1 https://github.com/Neo23x0/signature-base/blob/master/LICENSE"
		author = "Florian Roth (Nextron Systems)"
		reference = "http://goo.gl/VRJNLo"
		date = "2015/03/06"
		score = 70
		id = "aaae200c-7ef1-52eb-be5b-36e0ad29ecef"
	strings:
		$a0 = "***** SYSTEM INFORMATION ******"
		$a1 = "***** SECURITY INFORMATION ******"
		$a2 = "Antivirus: "
		$a3 = "Firewall: "
		$a4 = "***** EXECUTION CONTEXT ******"
		$a5 = "Identity: "
		$a6 = "<CONFIG TIMESTAMP="
	condition:
		all of them
}

rule Certutil_Decode_OR_Download {
   meta:
      description = "Certutil Decode"
      license = "Detection Rule License 1.1 https://github.com/Neo23x0/signature-base/blob/master/LICENSE"
      author = "Florian Roth (Nextron Systems)"
      reference = "Internal Research"
      score = 40
      date = "2017-08-29"
      modified = "2026-04-01"
      id = "63bdefd2-225a-56d5-b615-5e236c97f050"
   strings:
      $a1 = "certutil -decode " ascii wide
      $a2 = "certutil  -decode " ascii wide
      $a3 = "certutil.exe -decode " ascii wide
      $a4 = "certutil.exe  -decode " ascii wide
      $a5 = "certutil -urlcache -split -f http" ascii wide
      $a6 = "certutil.exe -urlcache -split -f http" ascii wide

      $fp_msi = { 52 00 6F 00 6F 00 74 00 20 00 45 00 6E 00 74 00 72 00 79 }
      $fp_doc = "https://docs.aws.amazon.com" ascii
   condition:
      filesize < 700KB
      and 1 of ($a*)
      and not 1 of ($fp*)
}

rule APT_Cloaked_CERTUTIL {
   meta:
      description = "Detects a renamed certutil.exe utility that is often used to decode encoded payloads"
      author = "Florian Roth (Nextron Systems)"
      reference = "Internal Research"
      date = "2018-09-14"
      modified = "2022-06-27"
      id = "13943cda-6bb1-5c6c-8e55-e8d4bba1ffef"
   strings:
      $s1 = "-------- CERT_CHAIN_CONTEXT --------" fullword ascii
      $s5 = "certutil.pdb" fullword ascii
      $s3 = "Password Token" fullword ascii
   condition:
      uint16(0) == 0x5a4d and all of them
      and not filename contains "certutil"
      and not filename contains "CertUtil"
      and not filename contains "Certutil"
      and not filepath contains "\\Bromium\\"
}

rule Binary_Drop_Certutil {
	meta:
		description = "Drop binary as base64 encoded cert trick"
		license = "Detection Rule License 1.1 https://github.com/Neo23x0/signature-base/blob/master/LICENSE"
		author = "Florian Roth (Nextron Systems)"
		reference = "https://goo.gl/9DNn8q"
		date = "2015-07-15"
		score = 70
		id = "19791e51-d041-524d-80fa-9f3ec54eb084"
	strings:
		$s0 = "echo -----BEGIN CERTIFICATE----- >" ascii
		$s1 = "echo -----END CERTIFICATE----- >>" ascii
		$s2 = "certutil -decode " ascii
	condition:
		filesize < 10KB and all of them
}

rule Lazagne_PW_Dumper {
   meta:
      description = "Detects Lazagne PW Dumper"
      author = "Markus Neis / Florian Roth"
      reference = "https://github.com/AlessandroZ/LaZagne/releases/"
      date = "2018-03-22"
      score = 70
      id = "1904029e-9336-5278-ae2e-4bc853316600"
   strings:
      $s1 = "Crypto.Hash" fullword ascii
      $s2 = "laZagne" fullword ascii
      $s3 = "impacket.winregistry" fullword ascii
   condition:
      3 of them
}

rule HKTL_Lazagne_PasswordDumper_Dec18_1 {
   meta:
      description = "Detects password dumper Lazagne often used by middle eastern threat groups"
      author = "Florian Roth (Nextron Systems)"
      license = "Detection Rule License 1.1 https://github.com/Neo23x0/signature-base/blob/master/LICENSE"
      reference = "https://www.symantec.com/blogs/threat-intelligence/seedworm-espionage-group"
      date = "2018-12-11"
      score = 85
      hash1 = "1205f5845035e3ee30f5a1ced5500d8345246ef4900bcb4ba67ef72c0f79966c"
      hash2 = "884e991d2066163e02472ea82d89b64e252537b28c58ad57d9d648b969de6a63"
      hash3 = "bf8f30031769aa880cdbe22bc0be32691d9f7913af75a5b68f8426d4f0c7be50"
      id = "bae48a4d-33b6-55b9-abf5-daf87e5da9e9"
   strings:
      $s1 = "softwares.opera(" ascii
      $s2 = "softwares.mozilla(" ascii
      $s3 = "config.dico(" ascii
      $s4 = "softwares.chrome(" ascii
      $s5 = "softwares.outlook(" ascii
   condition:
      uint16(0) == 0x5a4d and filesize < 17000KB and 1 of them
}

rule HKTL_Lazagne_Gen_18 {
   meta:
      description = "Detects Lazagne password extractor hacktool"
      author = "Florian Roth (Nextron Systems)"
      reference = "https://github.com/AlessandroZ/LaZagne"
      license = "https://creativecommons.org/licenses/by-nc/4.0/"
      date = "2018-12-11"
      score = 80
      hash1 = "51121dd5fbdfe8db7d3a5311e3e9c904d644ff7221b60284c03347938577eecf"
      id = "034ea6d8-f5cf-5664-9ff9-24d19403093d"
   strings:
      $x1 = "lazagne.config.powershell_execute(" ascii
      $x2 = "creddump7.win32." ascii
      $x3 = "lazagne.softwares.windows.hashdump" ascii
      $x4 = ".softwares.memory.libkeepass.common(" ascii
   condition:
      2 of them
}

rule Impacket_Keyword {
   meta:
      description = "Detects Impacket Keyword in Executable"
      license = "Detection Rule License 1.1 https://github.com/Neo23x0/signature-base/blob/master/LICENSE"
      author = "Florian Roth (Nextron Systems)"
      reference = "Internal Research"
      date = "2017-08-04"
      score = 60
      hash1 = "9388c78ea6a78dbea307470c94848ae2481481f593d878da7763e649eaab4068"
      hash2 = "2f6d95e0e15174cfe8e30aaa2c53c74fdd13f9231406b7103da1e099c08be409"
      id = "a92962e6-1b05-583b-8b06-f226bdea88e2"
   strings:
      $s1 = "impacket.smb(" ascii
      $s2 = "impacket.ntlm(" ascii
      $s3 = "impacket.nmb(" ascii
   condition:
      (uint16(0) == 0x5a4d and filesize < 14000KB and 1 of them)
}

rule Impacket_Tools_tracer {
   meta:
      description = "Compiled Impacket Tools"
      author = "Florian Roth"
      reference = "https://github.com/maaaaz/impacket-examples-windows"
      date = "2017-04-07"
      modified = "2021-07-15"
      hash1 = "e300339058a885475f5952fb4e9faaa09bb6eac26757443017b281c46b03108b"
   strings:
      $s1 = "btk85.dll" fullword ascii
      $s2 = "btcl85.dll" fullword ascii
      $s3 = "xtk\\unsupported.tcl" fullword ascii

      $fp1 = "Linden Research Inc" wide
   condition:
      ( uint16(0) == 0x5a4d and filesize < 21000KB and all of ($s*) )
      and not 1 of ($fp*)
}

rule Impacket_Tools_wmiexec {
   meta:
      description = "Compiled Impacket Tools"
      license = "Detection Rule License 1.1 https://github.com/Neo23x0/signature-base/blob/master/LICENSE"
      author = "Florian Roth (Nextron Systems)"
      reference = "https://github.com/maaaaz/impacket-examples-windows"
      date = "2017-04-07"
      hash1 = "19544863758341fe7276c59d85f4aa17094045621ca9c98f8a9e7307c290bad4"
      id = "3c2c7edf-da71-53dc-9ddf-dfbf10838a27"
   strings:
      $s1 = "bwmiexec.exe.manifest" fullword ascii
      $s2 = "swmiexec" fullword ascii
      $s3 = "\\yzHPlU=QA" ascii
   condition:
      ( uint16(0) == 0x5a4d and filesize < 17000KB and 2 of them )
}

rule Impacket_Tools_sniffer {
   meta:
      description = "Compiled Impacket Tools"
      license = "Detection Rule License 1.1 https://github.com/Neo23x0/signature-base/blob/master/LICENSE"
      author = "Florian Roth (Nextron Systems)"
      reference = "https://github.com/maaaaz/impacket-examples-windows"
      date = "2017-04-07"
      hash1 = "efff15e1815fb3c156678417d6037ddf4b711a3122c9b5bc2ca8dc97165d3769"
      id = "07051edc-91a8-59d6-87bf-dba98ef28588"
   strings:
      $s1 = "ssniffer" fullword ascii
      $s2 = "impacket.dhcp(" ascii
   condition:
      ( uint16(0) == 0x5a4d and filesize < 15000KB and all of them )
}

rule Impacket_Tools_mmcexec {
   meta:
      description = "Compiled Impacket Tools"
      license = "Detection Rule License 1.1 https://github.com/Neo23x0/signature-base/blob/master/LICENSE"
      author = "Florian Roth (Nextron Systems)"
      reference = "https://github.com/maaaaz/impacket-examples-windows"
      date = "2017-04-07"
      hash1 = "263a1655a94b7920531e123a8c9737428f2988bf58156c62408e192d4b2a63fc"
      id = "cca2082f-72a4-50c8-80b8-a9bed430dc4e"
   strings:
      $s1 = "smmcexec" fullword ascii
      $s2 = "\\yzHPlU=QA" ascii
   condition:
      ( uint16(0) == 0x5a4d and filesize < 16000KB and all of them )
}

rule Impacket_Tools_ifmap {
   meta:
      description = "Compiled Impacket Tools"
      license = "Detection Rule License 1.1 https://github.com/Neo23x0/signature-base/blob/master/LICENSE"
      author = "Florian Roth (Nextron Systems)"
      reference = "https://github.com/maaaaz/impacket-examples-windows"
      date = "2017-04-07"
      hash1 = "20a1f11788e6cc98a76dca2db4691963c054fc12a4d608ac41739b98f84b3613"
      id = "e5461916-ec2b-5f65-b938-267483f50bb2"
   strings:
      $s1 = "bifmap.exe.manifest" fullword ascii
      $s2 = "impacket.dcerpc.v5.epm(" ascii
   condition:
      ( uint16(0) == 0x5a4d and filesize < 15000KB and all of them )
}

rule karmaSMB {
   meta:
      description = "Compiled Impacket Tools"
      license = "Detection Rule License 1.1 https://github.com/Neo23x0/signature-base/blob/master/LICENSE"
      author = "Florian Roth (Nextron Systems)"
      reference = "https://github.com/maaaaz/impacket-examples-windows"
      date = "2017-04-07"
      hash1 = "d256d1e05695d62a86d9e76830fcbb856ba7bd578165a561edd43b9f7fdb18a3"
      id = "32c810c7-02e7-5203-b2ed-4e930b318cc0"
   strings:
      $s1 = "bkarmaSMB.exe.manifest" fullword ascii
   condition:
      ( uint16(0) == 0x5a4d and filesize < 17000KB and all of them )
}

rule samrdump {
   meta:
      description = "Compiled Impacket Tools"
      license = "Detection Rule License 1.1 https://github.com/Neo23x0/signature-base/blob/master/LICENSE"
      author = "Florian Roth (Nextron Systems)"
      reference = "https://github.com/maaaaz/impacket-examples-windows"
      date = "2017-04-07"
      hash1 = "4c2921702d18e0874b57638433474e54719ee6dfa39d323839d216952c5c834a"
      id = "cd274719-c8cc-5882-8d75-192ad822c6b3"
   strings:
      $s2 = "bsamrdump.exe.manifest" fullword ascii
      $s3 = "ssamrdump" fullword ascii
   condition:
      ( uint16(0) == 0x5a4d and filesize < 17000KB and all of them )
}

rule Impacket_Tools_rpcdump {
   meta:
      description = "Compiled Impacket Tools"
      license = "Detection Rule License 1.1 https://github.com/Neo23x0/signature-base/blob/master/LICENSE"
      author = "Florian Roth (Nextron Systems)"
      reference = "https://github.com/maaaaz/impacket-examples-windows"
      date = "2017-04-07"
      hash1 = "21d85b36197db47b94b0f4995d07b040a0455ebbe6d413bc33d926ee4e0315d9"
      id = "3f998aa6-c260-5fef-99ef-e8b4770c68c6"
   strings:
      $s1 = "srpcdump" fullword ascii
      $s2 = "impacket.dcerpc.v5.epm(" ascii
   condition:
      ( uint16(0) == 0x5a4d and filesize < 17000KB and all of them )
}

rule Impacket_Tools_secretsdump {
   meta:
      description = "Compiled Impacket Tools"
      license = "Detection Rule License 1.1 https://github.com/Neo23x0/signature-base/blob/master/LICENSE"
      author = "Florian Roth (Nextron Systems)"
      reference = "https://github.com/maaaaz/impacket-examples-windows"
      date = "2017-04-07"
      hash1 = "47afa5fd954190df825924c55112e65fd8ed0f7e1d6fd403ede5209623534d7d"
      id = "c944d051-ea24-5595-abef-59e326ad56de"
   strings:
      $s1 = "ssecretsdump" fullword ascii
      $s2 = "impacket.ese(" ascii
   condition:
      ( uint16(0) == 0x5a4d and filesize < 17000KB and all of them )
}

rule Impacket_Tools_esentutl {
   meta:
      description = "Compiled Impacket Tools"
      license = "Detection Rule License 1.1 https://github.com/Neo23x0/signature-base/blob/master/LICENSE"
      author = "Florian Roth (Nextron Systems)"
      reference = "https://github.com/maaaaz/impacket-examples-windows"
      date = "2017-04-07"
      hash1 = "70d854953d3ebb2c252783a4a103ba0e596d6ab447f238af777fb37d2b64c0cd"
      id = "1965e2b3-54be-553a-83d6-a0d4919414dd"
   strings:
      $s1 = "impacket.ese(" ascii
      $s2 = "sesentutl" fullword ascii
   condition:
      ( uint16(0) == 0x5a4d and filesize < 11000KB and all of them )
}

rule Impacket_Tools_opdump {
   meta:
      description = "Compiled Impacket Tools"
      license = "Detection Rule License 1.1 https://github.com/Neo23x0/signature-base/blob/master/LICENSE"
      author = "Florian Roth (Nextron Systems)"
      reference = "https://github.com/maaaaz/impacket-examples-windows"
      date = "2017-04-07"
      hash1 = "e2205539f29972d4e2a83eabf92af18dd406c9be97f70661c336ddf5eb496742"
      id = "1bb0e747-e9b7-5a54-8052-428351be8d0d"
   strings:
      $s2 = "bopdump.exe.manifest" fullword ascii
      $s3 = "sopdump" fullword ascii
   condition:
      ( uint16(0) == 0x5a4d and filesize < 17000KB and all of them )
}

rule Impacket_Tools_sniff {
   meta:
      description = "Compiled Impacket Tools"
      license = "Detection Rule License 1.1 https://github.com/Neo23x0/signature-base/blob/master/LICENSE"
      author = "Florian Roth (Nextron Systems)"
      reference = "https://github.com/maaaaz/impacket-examples-windows"
      date = "2017-04-07"
      hash1 = "8ab2b60aadf97e921e3a9df5cf1c135fbc851cb66d09b1043eaaa1dc01b9a699"
      id = "07051edc-91a8-59d6-87bf-dba98ef28588"
   strings:
      $s1 = "ssniff" fullword ascii
      $s2 = "impacket.eap(" ascii
   condition:
      ( uint16(0) == 0x5a4d and filesize < 15000KB and all of them )
}

rule Impacket_Tools_smbexec {
   meta:
      description = "Compiled Impacket Tools"
      license = "Detection Rule License 1.1 https://github.com/Neo23x0/signature-base/blob/master/LICENSE"
      author = "Florian Roth (Nextron Systems)"
      reference = "https://github.com/maaaaz/impacket-examples-windows"
      date = "2017-04-07"
      hash1 = "7d715217e23a471d42d95c624179fe7de085af5670171d212b7b798ed9bf07c2"
      id = "02208817-2eab-54e2-90cf-44dbf5474607"
   strings:
      $s1 = "logging.config(" ascii
      $s2 = "ssmbexec" fullword ascii
   condition:
      ( uint16(0) == 0x5a4d and filesize < 17000KB and all of them )
}

rule Impacket_Tools_goldenPac {
   meta:
      description = "Compiled Impacket Tools"
      license = "Detection Rule License 1.1 https://github.com/Neo23x0/signature-base/blob/master/LICENSE"
      author = "Florian Roth (Nextron Systems)"
      reference = "https://github.com/maaaaz/impacket-examples-windows"
      date = "2017-04-07"
      hash1 = "4f7fad0676d3c3d2d89e8d4e74b6ec40af731b1ddf5499a0b81fc3b1cd797ee3"
      id = "9894d16c-83fa-5e1d-9ca6-572deeec006a"
   strings:
      $s1 = "impacket.examples.serviceinstall(" ascii
      $s2 = "bgoldenPac.exe" fullword ascii
      $s3 = "json.scanner(" ascii
   condition:
      ( uint16(0) == 0x5a4d and filesize < 17000KB and all of them )
}

rule Impacket_Tools_netview {
   meta:
      description = "Compiled Impacket Tools"
      license = "Detection Rule License 1.1 https://github.com/Neo23x0/signature-base/blob/master/LICENSE"
      author = "Florian Roth (Nextron Systems)"
      reference = "https://github.com/maaaaz/impacket-examples-windows"
      date = "2017-04-07"
      hash1 = "ab909f8082c2d04f73d8be8f4c2640a5582294306dffdcc85e83a39d20c49ed6"
      id = "1b9238d2-b9b1-5633-8481-05a3a97af5a6"
   strings:
      $s1 = "impacket.dcerpc.v5.wkst(" ascii
      $s2 = "dummy_threading(" ascii
      $s3 = "snetview" fullword ascii
   condition:
      ( uint16(0) == 0x5a4d and filesize < 17000KB and all of them )
}

rule Impacket_Tools_smbtorture {
   meta:
      description = "Compiled Impacket Tools"
      license = "Detection Rule License 1.1 https://github.com/Neo23x0/signature-base/blob/master/LICENSE"
      author = "Florian Roth (Nextron Systems)"
      reference = "https://github.com/maaaaz/impacket-examples-windows"
      date = "2017-04-07"
      hash1 = "d2856e98011541883e5b335cb46b713b1a6b2c414966a9de122ee7fb226aa7f7"
      id = "4f9b55e2-93ce-5d08-a228-73233fb0a2c6"
   strings:
      $s1 = "impacket" fullword ascii
      $s2 = "ssmbtorture" fullword ascii
   condition:
      ( uint16(0) == 0x5a4d and filesize < 17000KB and all of them )
}

rule Impacket_Tools_smbrelayx {
   meta:
      description = "Compiled Impacket Tools"
      license = "Detection Rule License 1.1 https://github.com/Neo23x0/signature-base/blob/master/LICENSE"
      author = "Florian Roth (Nextron Systems)"
      reference = "https://github.com/maaaaz/impacket-examples-windows"
      date = "2017-04-07"
      hash1 = "9706eb99e48e445ac4240b5acb2efd49468a800913e70e40b25c2bf80d6be35f"
      id = "84abf3cf-841c-592d-a9d1-71d5e76eb43f"
   strings:
      $s1 = "impacket.examples.secretsdump" fullword ascii
      $s2 = "impacket.examples.serviceinstall" fullword ascii
      $s3 = "impacket.smbserver(" ascii
      $s4 = "SimpleHTTPServer(" ascii
   condition:
      ( uint16(0) == 0x5a4d and filesize < 18000KB and 3 of them )
}

rule Impacket_Tools_wmipersist {
   meta:
      description = "Compiled Impacket Tools"
      license = "Detection Rule License 1.1 https://github.com/Neo23x0/signature-base/blob/master/LICENSE"
      author = "Florian Roth (Nextron Systems)"
      reference = "https://github.com/maaaaz/impacket-examples-windows"
      date = "2017-04-07"
      hash1 = "2527fff1a3c780f6a757f13a8912278a417aea84295af1abfa4666572bbbf086"
      id = "29bda652-28f0-5ab6-9bc2-411f20ab0dda"
   strings:
      $s1 = "swmipersist" fullword ascii
      $s2 = "\\yzHPlU=QA" ascii
   condition:
      ( uint16(0) == 0x5a4d and filesize < 17000KB and all of them )
}

rule Impacket_Tools_lookupsid {
   meta:
      description = "Compiled Impacket Tools"
      license = "Detection Rule License 1.1 https://github.com/Neo23x0/signature-base/blob/master/LICENSE"
      author = "Florian Roth (Nextron Systems)"
      reference = "https://github.com/maaaaz/impacket-examples-windows"
      date = "2017-04-07"
      hash1 = "47756725d7a752d3d3cfccfb02e7df4fa0769b72e008ae5c85c018be4cf35cc1"
      id = "27f13397-b044-54b4-b5e8-c5f7ed374f59"
   strings:
      $s1 = "slookupsid" fullword ascii
      $s2 = "impacket.dcerpc" fullword ascii
   condition:
      ( uint16(0) == 0x5a4d and filesize < 15000KB and all of them )
}

rule Impacket_Tools_wmiquery {
   meta:
      description = "Compiled Impacket Tools"
      license = "Detection Rule License 1.1 https://github.com/Neo23x0/signature-base/blob/master/LICENSE"
      author = "Florian Roth (Nextron Systems)"
      reference = "https://github.com/maaaaz/impacket-examples-windows"
      date = "2017-04-07"
      hash1 = "202a1d149be35d96e491b0b65516f631f3486215f78526160cf262d8ae179094"
      id = "e8bdf27a-9763-5947-854f-162f74ff53be"
   strings:
      $s1 = "swmiquery" fullword ascii
      $s2 = "\\yzHPlU=QA" ascii
   condition:
      ( uint16(0) == 0x5a4d and filesize < 17000KB and all of them )
}

rule Impacket_Tools_atexec {
   meta:
      description = "Compiled Impacket Tools"
      license = "Detection Rule License 1.1 https://github.com/Neo23x0/signature-base/blob/master/LICENSE"
      author = "Florian Roth (Nextron Systems)"
      reference = "https://github.com/maaaaz/impacket-examples-windows"
      date = "2017-04-07"
      hash1 = "337bd5858aba0380e16ee9a9d8f0b3f5bfc10056ced4e75901207166689fbedc"
      id = "4f02e304-69d4-5952-80be-793379bccac0"
   strings:
      $s1 = "batexec.exe.manifest" fullword ascii
      $s2 = "satexec" fullword ascii
      $s3 = "impacket.dcerpc" fullword ascii
      $s4 = "# CSZq" fullword ascii
   condition:
      ( uint16(0) == 0x5a4d and filesize < 15000KB and 3 of them )
}

rule Impacket_Tools_Generic_1 {
   meta:
      description = "Compiled Impacket Tools"
      license = "Detection Rule License 1.1 https://github.com/Neo23x0/signature-base/blob/master/LICENSE"
      author = "Florian Roth (Nextron Systems)"
      reference = "https://github.com/maaaaz/impacket-examples-windows"
      date = "2017-04-07"
      super_rule = 1
      hash1 = "4f7fad0676d3c3d2d89e8d4e74b6ec40af731b1ddf5499a0b81fc3b1cd797ee3"
      hash2 = "d256d1e05695d62a86d9e76830fcbb856ba7bd578165a561edd43b9f7fdb18a3"
      hash3 = "2d8d500bcb3ffd22ddd8bd68b5b2ce935c958304f03729442a20a28b2c0328c1"
      hash4 = "ab909f8082c2d04f73d8be8f4c2640a5582294306dffdcc85e83a39d20c49ed6"
      hash5 = "e2205539f29972d4e2a83eabf92af18dd406c9be97f70661c336ddf5eb496742"
      hash6 = "27bb10569a872367ba1cfca3cf1c9b428422c82af7ab4c2728f501406461c364"
      hash7 = "dc85a3944fcb8cc0991be100859c4e1bf84062f7428c4dc27c71e08d88383c98"
      hash8 = "0f7f0d8afb230c31fe6cf349c4012b430fc3d6722289938f7e33ea15b2996e1b"
      hash9 = "21d85b36197db47b94b0f4995d07b040a0455ebbe6d413bc33d926ee4e0315d9"
      hash10 = "4c2921702d18e0874b57638433474e54719ee6dfa39d323839d216952c5c834a"
      hash11 = "47afa5fd954190df825924c55112e65fd8ed0f7e1d6fd403ede5209623534d7d"
      hash12 = "7d715217e23a471d42d95c624179fe7de085af5670171d212b7b798ed9bf07c2"
      hash13 = "9706eb99e48e445ac4240b5acb2efd49468a800913e70e40b25c2bf80d6be35f"
      hash14 = "d2856e98011541883e5b335cb46b713b1a6b2c414966a9de122ee7fb226aa7f7"
      hash15 = "8ab2b60aadf97e921e3a9df5cf1c135fbc851cb66d09b1043eaaa1dc01b9a699"
      hash16 = "efff15e1815fb3c156678417d6037ddf4b711a3122c9b5bc2ca8dc97165d3769"
      hash17 = "e300339058a885475f5952fb4e9faaa09bb6eac26757443017b281c46b03108b"
      hash18 = "19544863758341fe7276c59d85f4aa17094045621ca9c98f8a9e7307c290bad4"
      hash19 = "2527fff1a3c780f6a757f13a8912278a417aea84295af1abfa4666572bbbf086"
      hash20 = "202a1d149be35d96e491b0b65516f631f3486215f78526160cf262d8ae179094"
      id = "d2ce6426-d165-5569-a992-268f05622653"
   strings:
      $s1 = "bpywintypes27.dll" fullword ascii
      $s2 = "hZFtPC" fullword ascii
      $s3 = "impacket" ascii
   condition:
      ( uint16(0) == 0x5a4d and filesize < 21000KB and all of ($s*) ) or ( all of them )
}

rule Impacket_Lateral_Movement {
   meta:
      description = "Detects Impacket Network Aktivity for Lateral Movement"
      author = "Markus Neis"
      reference = "https://github.com/CoreSecurity/impacket"
      date = "2018-03-22"
      score = 60
      id = "44db234c-ac81-5d21-bc2a-8cfd88807c0d"
   strings:
      $s1 = "impacket.dcerpc.v5.transport(" ascii
      $s2 = "impacket.smbconnection(" ascii
      $s3 = "impacket.dcerpc.v5.ndr(" ascii
      $s4 = "impacket.spnego(" ascii
      $s5 = "impacket.smb(" ascii
      $s6 = "impacket.ntlm(" ascii
      $s7 = "impacket.nmb(" ascii
   condition:
      uint16(0) == 0x5a4d and filesize < 14000KB and 2 of them
}

rule HackTool_PY_ImpacketObfuscation_1
{
    meta:
        date = "2020-12-01"
        modified = "2020-12-01"
        description = "smbexec"
        md5 = "0b1e512afe24c31531d6db6b47bac8ee"
        reference = "https://www.fireeye.com/blog/products-and-services/2020/12/fireeye-shares-details-of-recent-cyber-attack-actions-to-protect-community.html"
        author = "FireEye"
        id = "992d1132-3136-5e1b-a1ef-dcdf36ebf0f5"
    strings:
        $s1 = "class CMDEXEC" nocase
        $s2 = "class RemoteShell" nocase
        $s3 = "self.services_names"
        $s4 = "import random"
        $s6 = /self\.__shell[\x09\x20]{0,32}=[\x09\x20]{0,32}[\x22\x27]%CoMSpEC%[\x09\x20]{1,32}\/q[\x09\x20]{1,32}\/K [\x22\x27]/ nocase
        $s7 = /self\.__serviceName[\x09\x20]{0,32}=[\x09\x20]{0,32}self\.services_names\[random\.randint\([\x09\x20]{0,32}0[\x09\x20]{0,32},[\x09\x20]{0,32}len\(self\.services_names\)[\x09\x20]{0,32}-[\x09\x20]{0,32}1\)\]/
    condition:
        all of them
}

rule HackTool_PY_ImpacketObfuscation_2
{
    meta:
        description = "Detects FireEye's wmiexec impacket obfuscation"
        date = "2020-12-01"
        modified = "2020-12-01"
        md5 = "f3dd8aa567a01098a8a610529d892485"
        reference = "https://www.fireeye.com/blog/products-and-services/2020/12/fireeye-shares-details-of-recent-cyber-attack-actions-to-protect-community.html"
        author = "FireEye"
        id = "f1059f66-eaff-5866-bafb-c94236cf96a0"
    strings:
        $s1 = "import random"
        $s2 = "class WMIEXEC" nocase
        $s3 = "class RemoteShell" nocase
        $s4 = /=[\x09\x20]{0,32}str\(int\(time\.time\(\)\)[\x09\x20]{0,32}-[\x09\x20]{0,32}random\.randint\(\d{1,10}[\x09\x20]{0,32},[\x09\x20]{0,32}\d{1,10}\)\)[\x09\x20]{0,32}\+[\x09\x20]{0,32}str\(uuid\.uuid4\(\)\)\.split\([\x22\x27]\-[\x22\x27]\)\[0\]/
        $s5 = /self\.__shell[\x09\x20]{0,32}=[\x09\x20]{0,32}[\x22\x27]cmd.exe[\x09\x20]{1,32}\/q[\x09\x20]{1,32}\/K [\x22\x27]/ nocase
    condition:
        all of them
}

rule Chafer_Exploit_Copyright_2017 {
   meta:
      description = "Detects Oilrig Internet Server Extension with Copyright (C) 2017 Exploit"
      author = "Markus Neis"
      reference = "https://nyotron.com/wp-content/uploads/2018/03/Nyotron-OilRig-Malware-Report-March-2018b.pdf"
      date = "2018-03-22"
      hash1 = "cdac69caad8891c5e1b8eabe598c869674dee30af448ce4e801a90eb79973c66"
      id = "f78ae4f5-0569-5fc8-ab25-ebe38afd9f3c"
   strings:
      $x1 = "test3 Internet Server Extension" fullword wide
      $x2 = "Copyright (C) 2017 Exploit" fullword wide

      $a1 = "popen() failed!" fullword ascii
      $a2 = "cmd2cmd=" fullword ascii
   condition:
      uint16(0) == 0x5a4d and filesize < 700KB and (
         1 of ($x*) or all of ($a*)
      )
}

rule Chafer_Portscanner {
   meta:
      description = "Detects Custom Portscanner used by Oilrig"
      author = "Markus Neis"
      reference = "https://nyotron.com/wp-content/uploads/2018/03/Nyotron-OilRig-Malware-Report-March-2018b.pdf"
      date = "2018-03-22"
      hash1 = "88274a68a6e07bdc53171641e7349d6d0c71670bd347f11dcc83306fe06656e9"
      id = "8db934c3-fb0d-5c87-9096-1ee8fb16f9a5"
   strings:
      $x1 = "C:\\Users\\RS01204N\\Documents\\" ascii
      $x2 = "PortScanner /ip:google.com  /port:80 /t:500 /tout:2" fullword ascii
      $x3 = "open ports of host/hosts" fullword ascii
   condition:
      uint16(0) == 0x5a4d and filesize < 1000KB and 1 of them
}