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SOFTWARE
Overview 3PARA RAT 4H RAT adbupd Adups ADVSTORESHELL Agent Tesla Agent.btz Allwinner Android Overlay Malware Android/Chuli.A ANDROIDOS_ANSERVER.A AndroRAT Arp ASPXSpy Astaroth at AuditCred AutoIt backdoor Azorult Backdoor.Oldrea BACKSPACE BADCALL BADNEWS BadPatch Bandook Bankshot BBSRAT BISCUIT Bisonal BITSAdmin BLACKCOFFEE BlackEnergy BONDUPDATER BOOTRASH BrainTest Brave Prince Briba BS2005 BUBBLEWRAP Cachedump CALENDAR Calisto CallMe Cannon Carbanak Carbon Cardinal RAT Catchamas CCBkdr certutil Chaos Charger ChChes Cherry Picker China Chopper CHOPSTICK CloudDuke cmd Cobalt Strike Cobian RAT CoinTicker Comnie ComRAT CORALDECK CORESHELL CosmicDuke CozyCar Crimson CrossRAT DarkComet Daserf DDKONG DealersChoice Dendroid Denis Derusbi Dipsind DOGCALL Dok Downdelph DownPaper DressCode Dridex DroidJack dsquery DualToy Duqu DustySky Dyre Ebury Elise ELMER Emissary Emotet Empire Epic EvilBunny EvilGrab Exaramel Expand FakeM FALLCHILL Felismus FELIXROOT Fgdump Final1stspy FinFisher Flame FLASHFLOOD FlawedAmmyy FlawedGrace FLIPSIDE Forfiles FruitFly FTP Gazer GeminiDuke gh0st RAT GLOOXMAIL Gold Dragon Gooligan GravityRAT GreyEnergy gsecdump H1N1 Hacking Team UEFI Rootkit HALFBAKED HAMMERTOSS HAPPYWORK HARDRAIN Havij HAWKBALL hcdLoader HDoor Helminth Hi-Zor HiddenWasp HIDEDRV Hikit HOMEFRY HOPLIGHT HTRAN HTTPBrowser httpclient HummingBad HummingWhale Hydraq HyperBro ifconfig iKitten Impacket InnaputRAT InvisiMole Invoke-PSImage ipconfig ISMInjector Ixeshe Janicab JCry JHUHUGIT JPIN jRAT Judy KARAE Kasidet Kazuar KeyBoy Keydnap KEYMARBLE KeyRaider Koadic Komplex KOMPROGO KONNI Kwampirs LaZagne LightNeuron Linfo Linux Rabbit LockerGoga LoJax LOWBALL Lslsass Lurid MacSpy Marcher Matroyshka MazarBOT meek Micropsia Mimikatz MimiPenguin Miner-C MiniDuke MirageFox Mis-Type Misdat Mivast MobileOrder MoonWind More_eggs Mosquito MURKYTOP Naid NanHaiShu NanoCore NavRAT nbtstat NDiskMonitor Nerex Net Net Crawler NETEAGLE netsh netstat NetTraveler NETWIRE Nidiran njRAT Nltest NOKKI NotCompatible NotPetya OBAD OceanSalt Octopus OLDBAIT OldBoot Olympic Destroyer OnionDuke OopsIE Orz OSInfo OSX_OCEANLOTUS.D OwaAuth P2P ZeuS Pallas Pasam Pass-The-Hash Toolkit Pegasus for Android Pegasus for iOS PHOREAL PinchDuke Ping Pisloader PJApps PLAINTEE PlugX pngdowner PoisonIvy POORAIM PoshC2 POSHSPY Power Loader PowerDuke POWERSOURCE PowerSploit PowerStallion POWERSTATS POWERTON POWRUNER Prikormka Proton Proxysvc PsExec Psylo Pteranodon PUNCHBUGGY PUNCHTRACK Pupy pwdump QUADAGENT QuasarRAT RARSTONE RATANKBA RawDisk RawPOS RCSAndroid Reaver RedDrop RedLeaves Reg Regin Remcos Remexi RemoteCMD Remsec Responder Revenge RAT RGDoor RIPTIDE ROCKBOOT RogueRobin ROKRAT route Rover RTM Ruler RuMMS RunningRAT S-Type Sakula SamSam schtasks SDelete SeaDuke Seasalt SEASHARPEE ServHelper Shamoon ShiftyBug SHIPSHAPE SHOTPUT SHUTTERSPEED Skeleton Key Skygofree SLOWDRIFT Smoke Loader SNUGRIDE Socksbot SOUNDBITE SPACESHIP SpeakUp spwebmember SpyDealer SpyNote RAT sqlmap SQLRat SslMM Starloader Stealth Mango StoneDrill StreamEx Sykipot SynAck Sys10 Systeminfo T9000 Taidoor Tangelo Tasklist TDTESS TEXTMATE TINYTYPHON TinyZBot Tor TrickBot Trojan-SMS.AndroidOS.Agent.ao Trojan-SMS.AndroidOS.FakeInst.a Trojan-SMS.AndroidOS.OpFake.a Trojan.Karagany Trojan.Mebromi Truvasys TURNEDUP Twitoor TYPEFRAME UACMe UBoatRAT Umbreon Unknown Logger UPPERCUT Uroburos Ursnif USBStealer Vasport VERMIN Volgmer WannaCry WEBC2 Wiarp Windows Credential Editor WINDSHIELD WINERACK Winexe Wingbird WinMM Winnti Wiper WireLurker X-Agent for Android XAgentOSX Xbash Xbot xCmd XcodeGhost XLoader XTunnel Yahoyah YiSpecter yty Zebrocy ZergHelper Zeroaccess ZeroT Zeus Panda ZLib zwShell
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Emissary

Emissary is a Trojan that has been used by Lotus Blossom. It shares code with Elise, with both Trojans being part of a malware group referred to as LStudio. [1]

ID: S0082
Type: MALWARE
Platforms: Windows
Version: 1.0

Techniques Used

Domain ID Name Use
Enterprise T1009 Binary Padding A variant of Emissary appends junk data to the end of its DLL file to create a large file that may exceed the maximum size that anti-virus programs can scan. [2]
Enterprise T1059 Command-Line Interface Emissary has the capability to create a remote shell and execute specified commands. [1]
Enterprise T1024 Custom Cryptographic Protocol The C2 server response to a beacon sent by a variant of Emissary contains a 36-character GUID value that is used as an encryption key for subsequent network communications. Some variants of Emissary use various XOR operations to encrypt C2 data. [1]
Enterprise T1050 New Service Emissary is capable of configuring itself as a service. [2]
Enterprise T1027 Obfuscated Files or Information Variants of Emissary encrypt payloads using various XOR ciphers, as well as a custom algorithm that uses the "srand" and "rand" functions. [1] [2]
Enterprise T1069 Permission Groups Discovery Emissary has the capability to execute the command net localgroup administrators. [2]
Enterprise T1055 Process Injection Emissary injects its DLL file into a newly spawned Internet Explorer process. [1]
Enterprise T1060 Registry Run Keys / Startup Folder Variants of Emissary have added Run Registry keys to establish persistence. [2]
Enterprise T1105 Remote File Copy Emissary has the capability to download files from the C2 server. [1]
Enterprise T1085 Rundll32 Variants of Emissary have used rundll32.exe in Registry values added to establish persistence. [2]
Enterprise T1071 Standard Application Layer Protocol Emissary uses HTTP or HTTPS for C2. [1]
Enterprise T1082 System Information Discovery Emissary has the capability to execute ver, systeminfo, and gpresult commands. [2]
Enterprise T1016 System Network Configuration Discovery Emissary has the capability to execute the command ipconfig /all. [2]
Enterprise T1007 System Service Discovery Emissary has the capability to execute the command net start to interact with services. [2]

Groups That Use This Software

ID Name References
G0030 Lotus Blossom [1] [2]

References

  1. Falcone, R. and Miller-Osborn, J.. (2015, December 18). Attack on French Diplomat Linked to Operation Lotus Blossom. Retrieved February 15, 2016.
  1. Falcone, R. and Miller-Osborn, J.. (2016, February 3). Emissary Trojan Changelog: Did Operation Lotus Blossom Cause It to Evolve?. Retrieved February 15, 2016.