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99 lines
3.4 KiB
Plaintext
99 lines
3.4 KiB
Plaintext
/*
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Yara Rule Set
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Author: Florian Roth
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Date: 2015-08-04
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Identifier: Terracotta APT
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Comment: Reduced Rule Set
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*/
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/* Rule Set ----------------------------------------------------------------- */
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rule Apolmy_Privesc_Trojan {
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meta:
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description = "Apolmy Privilege Escalation Trojan used in APT Terracotta"
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author = "Florian Roth"
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reference = "https://blogs.rsa.com/terracotta-vpn-enabler-of-advanced-threat-anonymity/"
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date = "2015-08-04"
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score = 80
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hash = "d7bd289e6cee228eb46a1be1fcdc3a2bd5251bc1eafb59f8111756777d8f373d"
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strings:
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$s1 = "[%d] Failed, %08X" fullword ascii
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$s2 = "[%d] Offset can not fetched." fullword ascii
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$s3 = "PowerShadow2011" fullword wide
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condition:
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uint16(0) == 0x5a4d and filesize < 300KB and all of them
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}
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rule Mithozhan_Trojan {
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meta:
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description = "Mitozhan Trojan used in APT Terracotta"
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author = "Florian Roth"
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reference = "https://blogs.rsa.com/terracotta-vpn-enabler-of-advanced-threat-anonymity/"
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date = "2015-08-04"
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score = 70
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hash = "8553b945e2d4b9f45c438797d6b5e73cfe2899af1f9fd87593af4fd7fb51794a"
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strings:
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$s1 = "adbrowser" fullword wide
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$s2 = "IJKLlGdmaWhram0vn36BgIOChYR3L45xcHNydXQvhmloa2ptbH8voYCDTw==" fullword ascii
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$s3 = "EFGHlGdmaWhrL41sf36BgIOCL6R3dk8=" fullword ascii
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condition:
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uint16(0) == 0x5a4d and filesize < 300KB and all of them
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}
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rule RemoteExec_Tool {
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meta:
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description = "Remote Access Tool used in APT Terracotta"
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author = "Florian Roth"
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reference = "https://blogs.rsa.com/terracotta-vpn-enabler-of-advanced-threat-anonymity/"
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date = "2015-08-04"
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hash = "a550131e106ff3c703666f15d55d9bc8c816d1cb9ac1b73c2e29f8aa01e53b78"
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strings:
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$s0 = "cmd.exe /q /c \"%s\"" fullword ascii
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$s1 = "\\\\.\\pipe\\%s%s%d" fullword ascii
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$s2 = "This is a service executable! Couldn't start directly." fullword ascii
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$s3 = "\\\\.\\pipe\\TermHlp_communicaton" fullword ascii
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$s4 = "TermHlp_stdout" fullword ascii
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$s5 = "TermHlp_stdin" fullword ascii
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condition:
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uint16(0) == 0x5a4d and filesize < 75KB and 4 of ($s*)
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}
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/* Super Rules ------------------------------------------------------------- */
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rule LiuDoor_Malware_1 {
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meta:
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description = "Liudoor Trojan used in Terracotta APT"
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author = "Florian Roth"
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reference = "https://blogs.rsa.com/terracotta-vpn-enabler-of-advanced-threat-anonymity/"
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date = "2015-08-04"
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score = 70
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super_rule = 1
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hash1 = "deed6e2a31349253143d4069613905e1dfc3ad4589f6987388de13e33ac187fc"
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hash2 = "4575e7fc8f156d1d499aab5064a4832953cd43795574b4c7b9165cdc92993ce5"
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hash3 = "ad1a507709c75fe93708ce9ca1227c5fefa812997ed9104ff9adfec62a3ec2bb"
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strings:
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$s1 = "svchostdllserver.dll" fullword ascii
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$s2 = "SvcHostDLL: RegisterServiceCtrlHandler %S failed" fullword ascii
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$s3 = "\\nbtstat.exe" fullword ascii
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$s4 = "DataVersionEx" fullword ascii
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condition:
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uint16(0) == 0x5a4d and filesize < 150KB and all of them
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}
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rule LiuDoor_Malware_2 {
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meta:
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description = "Liudoor Trojan used in Terracotta APT"
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author = "Florian Roth"
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reference = "https://blogs.rsa.com/terracotta-vpn-enabler-of-advanced-threat-anonymity/"
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date = "2015-08-04"
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score = 70
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super_rule = 1
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hash1 = "f3fb68b21490ded2ae7327271d3412fbbf9d705c8003a195a705c47c98b43800"
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hash2 = "e42b8385e1aecd89a94a740a2c7cd5ef157b091fabd52cd6f86e47534ca2863e"
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strings:
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$s0 = "svchostdllserver.dll" fullword ascii
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$s1 = "Lpykh~mzCCRv|mplpykCCHvq{phlCC\\jmmzqkIzmlvpqCC" fullword ascii
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condition:
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uint16(0) == 0x5a4d and filesize < 100KB and all of them
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}
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