Masquerading: Match Legitimate Resource Name or Location, Sub-technique T1036.005 - Enterprise (original) (raw)

C0025

2016 Ukraine Electric Power Attack

During the 2016 Ukraine Electric Power Attack, DLLs and EXEs with filenames associated with common electric power sector protocols were used to masquerade files.[2]

C0063

2025 Poland Wiper Attacks

During the 2025 Poland Wiper Attacks, the adversaries created rules that mimicked the name of an institution already present in the network device configuration to avoid detection.[3]

G0018

admin@338

admin@338 actors used the following command to rename one of their tools to a benign file name: ren "%temp%\upload" audiodg.exe[4]

G1024

Akira

Akira has used legitimate names and locations for files to evade defenses.[5]

S1074

ANDROMEDA

ANDROMEDA has been installed to C:\Temp\TrustedInstaller.exe to mimic a legitimate Windows installer service.[6]

S0622

AppleSeed

AppleSeed has the ability to rename its payload to ESTCommon.dll to masquerade as a DLL belonging to ESTsecurity.[7]

G0099

APT-C-36

APT-C-36 has disguised malicious executables to appear as legitimate files.[8]

G0006

APT1

The file name AcroRD32.exe, a legitimate process name for Adobe's Acrobat Reader, was used by APT1 as a name for malware.[9][10]

G0007

APT28

APT28 has changed extensions on files containing exfiltrated data to make them appear benign, and renamed a web shell instance to appear as a legitimate OWA page.[11]

G0016

APT29

APT29 has renamed malicious DLLs with legitimate names to appear benign; they have also created an Azure AD certificate with a Common Name that matched the display name of the compromised service principal.[12][13]

G0050

APT32

APT32 has renamed a NetCat binary to kb-10233.exe to masquerade as a Windows update. APT32 has also renamed a Cobalt Strike beacon payload to install_flashplayers.exe. [14][15]

G0087

APT39

APT39 has used malware disguised as Mozilla Firefox and a tool named mfevtpse.exe to proxy C2 communications, closely mimicking a legitimate McAfee file mfevtps.exe.[16][17]

G0096

APT41

APT41 attempted to masquerade their files as popular anti-virus software.[18][19]

G1044

APT42

APT42 has masqueraded the VINETHORN payload as a VPN application.[20]

G1023

APT5

APT5 has named exfiltration archives to mimic Windows Updates at times using filenames with a KB<digits>.zip pattern.[21]

G0143

Aquatic Panda

Aquatic Panda renamed or moved malicious binaries to legitimate locations to evade defenses and blend into victim environments.[22]

S9031

AshTag

AshTag has masqueraded as a legitimate VisualServer utility.[23]

S0475

BackConfig

BackConfig has hidden malicious payloads in %USERPROFILE%\Adobe\Driver\dwg\ and mimicked the legitimate DHCP service binary.[24]

G0135

BackdoorDiplomacy

BackdoorDiplomacy has dropped implants in folders named for legitimate software.[25]

S0606

Bad Rabbit

Bad Rabbit has masqueraded as a Flash Player installer through the executable file install_flash_player.exe.[26][27]

S0128

BADNEWS

BADNEWS attempts to hide its payloads using legitimate filenames.[28]

S0534

Bazar

The Bazar loader has named malicious shortcuts "adobe" and mimicked communications software.[29][30][31]

S0268

Bisonal

Bisonal has renamed malicious code to msacm32.dll to hide within a legitimate library; earlier versions were disguised as winhelp.[32]

S1070

Black Basta

The Black Basta dropper has mimicked an application for creating USB bootable drivers.[33]

S0520

BLINDINGCAN

BLINDINGCAN has attempted to hide its payload by using legitimate file names such as "iconcache.db".[34]

G0108

Blue Mockingbird

Blue Mockingbird has masqueraded their XMRIG payload name by naming it wercplsupporte.dll after the legitimate wercplsupport.dll file.[35]

S9015

BRICKSTORM

BRICKSTORM has appeared to resemble legitimate processes to include the vCenter process vami-http.[36][37][38] BRICKSTORM has also leveraged legitimate names of VMware vSphere platform such as vmsrc or vmware-sphere.[39]

G0060

BRONZE BUTLER

BRONZE BUTLER has given malware the same name as an existing file on the file share server to cause users to unwittingly launch and install the malware on additional systems.[40]

S1063

Brute Ratel C4

Brute Ratel C4 has used a payload file named OneDrive.update to appear benign.[41]

S1039

Bumblebee

Bumblebee has named component DLLs "RapportGP.dll" to match those used by the security company Trusteer.[42]

S0482

Bundlore

Bundlore has disguised a malicious .app file as a Flash Player update.[43]

C0017

C0017

During C0017, APT41 used file names beginning with USERS, SYSUSER, and SYSLOG for DEADEYE, and changed KEYPLUG file extensions from .vmp to .upx likely to avoid hunting detections.[44]

C0018

C0018

For C0018, the threat actors renamed a Sliver payload to vmware_kb.exe.[45]

C0032

C0032

During the C0032 campaign, TEMP.Veles renamed files to look like legitimate files, such as Windows update files or Schneider Electric application files.[46]

S0274

Calisto

Calisto's installation file is an unsigned DMG image under the guise of Intego’s security solution for mac.[47]

S1237

CANONSTAGER

CANONSTAGER has leveraged naming conventions of its malicious DLL to match legitimate services to include cnmpaui.dll which matches the legitimate executable cnmpaui.exe that is aligned with a Canon Ink Jet Printer Assistant Tool.[48]

G0008

Carbanak

Carbanak has named malware "svchost.exe," which is the name of the Windows shared service host program.[49]

S0484

Carberp

Carberp has masqueraded as Windows system file names, as well as "chkntfs.exe" and "syscron.exe".[50][51]

S0631

Chaes

Chaes has used an unsigned, crafted DLL module named hha.dll that was designed to look like a legitimate 32-bit Windows DLL.[52]

S0144

ChChes

ChChes copies itself to an .exe file with a filename that is likely intended to imitate Norton Antivirus but has several letters reversed (e.g. notron.exe).[53]

G0114

Chimera

Chimera has renamed malware to GoogleUpdate.exe and WinRAR to jucheck.exe, RecordedTV.ms, teredo.tmp, update.exe, and msadcs1.exe.[54]

S1041

Chinoxy

Chinoxy has used the name eoffice.exe in attempt to appear as a legitimate file.[55]

S1236

CLAIMLOADER

CLAIMLOADER has imitated legitimate software directories through the creation and storage of the EXE and DLL in C:\ProgramData\ and the use of legitimate looking names of software.[56]

S0625

Cuba

Cuba has been disguised as legitimate 360 Total Security Antivirus and OpenVPN programs.[57]

S1153

Cuckoo Stealer

Cuckoo Stealer has copied and renamed itself to DumpMediaSpotifyMusicConverter.[58][59]

S0687

Cyclops Blink

Cyclops Blink can rename its running process to [kworker:0/1] to masquerade as a Linux kernel thread. Cyclops Blink has also named RC scripts used for persistence after WatchGuard artifacts.[60]

S1014

DanBot

DanBot files have been named UltraVNC.exe and WINVNC.exe to appear as legitimate VNC tools.[61]

S0334

DarkComet

DarkComet has dropped itself onto victim machines with file names such as WinDefender.Exe and winupdate.exe in an apparent attempt to masquerade as a legitimate file.[62]

G0012

Darkhotel

Darkhotel has used malware that is disguised as a Secure Shell (SSH) tool.[63]

S0187

Daserf

Daserf uses file and folder names related to legitimate programs in order to blend in, such as HP, Intel, Adobe, and perflogs.[64]

S0600

Doki

Doki has disguised a file as a Linux kernel module.[65]

S0694

DRATzarus

DRATzarus has been named Flash.exe, and its dropper has been named IExplorer.[66]

S0567

Dtrack

One of Dtrack can hide in replicas of legitimate programs like OllyDbg, 7-Zip, and FileZilla.[67]

S1158

DUSTPAN

DUSTPAN is often disguised as a legitimate Windows binary such as w3wp.exe or conn.exe.[68]

G1006

Earth Lusca

Earth Lusca used the command move [file path] c:\windows\system32\spool\prtprocs\x64\spool.dll to move and register a malicious DLL name as a Windows print processor, which eventually was loaded by the Print Spooler service.[69]

S0605

EKANS

EKANS has been disguised as update.exe to appear as a valid executable.[70]

S0081

Elise

If installing itself as a service fails, Elise instead writes itself as a file named svchost.exe saved in %APPDATA%\Microsoft\Network.[71]

G1003

Ember Bear

Ember Bear has renamed tools to match legitimate utilities, such as renaming GOST tunneling instances to java in victim environments.[72]

S0171

Felismus

Felismus has masqueraded as legitimate Adobe Content Management System files.[73]

G0137

Ferocious Kitten

Ferocious Kitten has named malicious files update.exe and loaded them into the compromise host's "Public" folder.[74]

G1016

FIN13

FIN13 has masqueraded WAR files to look like legitimate packages such as, wsexample.war, wsexamples.com, examples.war, and exampl3s.war.[75]

G0046

FIN7

FIN7 has attempted to run Darkside ransomware with the filename sleep.exe.[76] Additionally, FIN7 has mimicked WsTaskLoad.exe, which is associated with the Wondershare software suite, by using a malicious executable under the same name.[77]

S0182

FinFisher

FinFisher renames one of its .dll files to uxtheme.dll in an apparent attempt to masquerade as a legitimate file.[78][79]

S0661

FoggyWeb

FoggyWeb can be disguised as a Visual Studio file such as Windows.Data.TimeZones.zh-PH.pri to evade detection. Also, FoggyWeb's loader can mimic a genuine dll file that carries out the same import functions as the legitimate Windows version.dll file.[80]

S9033

Fooder

Fooder has frequently masqueraded as the Snake game, using strings such as "Welcome to snake Game" and mutexes such as "SNAKE_G."[81]

G0117

Fox Kitten

Fox Kitten has named binaries and configuration files svhost and dllhost respectively to appear legitimate.[82]

S0410

Fysbis

Fysbis has masqueraded as trusted software rsyncd and dbus-inotifier.[83]

G0047

Gamaredon Group

Gamaredon Group has used legitimate process names to hide malware including svchosst.[84] Additionally, Gamaredon Group disguised malicious ZIP archives as Office documents that are related to the invasion.[85]

S0666

Gelsemium

Gelsemium has named malicious binaries serv.exe, winprint.dll, and chrome_elf.dll and has set its persistence in the Registry with the key value Chrome Update to appear legitimate.[86]

S1197

GoBear

GoBear is installed through droppers masquerading as legitimate, signed software installers.[87]

S0493

GoldenSpy

GoldenSpy's setup file installs initial executables under the folder %WinDir%\System32\PluginManager.[88]

S0588

GoldMax

GoldMax has used filenames that matched the system name, and appeared as a scheduled task impersonating systems management software within the corresponding ProgramData subfolder.[89][90]

S0477

Goopy

Goopy has impersonated the legitimate goopdate.dll, which was dropped on the target system with a legitimate GoogleUpdate.exe.[14]

S0531

Grandoreiro

Grandoreiro has named malicious browser extensions and update files to appear legitimate.[91][92]

S0690

Green Lambert

Green Lambert has been disguised as a Growl help file.[93][94]

S0697

HermeticWiper

HermeticWiper has used the name postgressql.exe to mask a malicious payload.[95]

S0698

HermeticWizard

HermeticWizard has been named exec_32.dll to mimic a legitimate MS Outlook .dll.[95]

S1249

HexEval Loader

HexEval Loader has masqueraded and typosquatted as legitimate code repository packages and projects.[96][97]

C0038

HomeLand Justice

During HomeLand Justice, threat actors renamed ROADSWEEP to GoXML.exe and ZeroCleare to cl.exe.[98][99]

S0070

HTTPBrowser

HTTPBrowser's installer contains a malicious file named navlu.dll to decrypt and run the RAT. navlu.dll is also the name of a legitimate Symantec DLL.[100]

S1022

IceApple

IceApple .NET assemblies have used App_Web_ in their file names to appear legitimate.[101]

S0483

IcedID

IcedID has modified legitimate .dll files to include malicious code.[102]

G1032

INC Ransom

INC Ransom has named a PsExec executable winupd to mimic a legitimate Windows update file.[103][104]

G0119

Indrik Spider

Indrik Spider used fake updates for FlashPlayer plugin and Google Chrome as initial infection vectors.[105]

S0259

InnaputRAT

InnaputRAT variants have attempted to appear legitimate by using the file names SafeApp.exe and NeutralApp.exe.[106]

S0260

InvisiMole

InvisiMole has disguised its droppers as legitimate software or documents, matching their original names and locations, and saved its files as mpr.dll in the Windows folder.[107][108]

S0015

Ixeshe

Ixeshe has used registry values and file names associated with Adobe software, such as AcroRd32.exe.[109]

S1203

J-magic

J-magic can rename itself as "[nfsiod 0]" to masquerade as the local Network File System (NFS) asynchronous I/O server.[110]

C0050

J-magic Campaign

During the J-magic Campaign, threat actors used the name "JunoscriptService" to masquerade malware as the Junos automation scripting service.[110]

G0004

Ke3chang

Ke3chang has dropped their malware into legitimate installed software paths including: C:\ProgramFiles\Realtek\Audio\HDA\AERTSr.exe, C:\Program Files (x86)\Foxit Software\Foxit Reader\FoxitRdr64.exe, C:\Program Files (x86)\Adobe\Flash Player\AddIns\airappinstaller\airappinstall.exe, and C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroRd64.exe.[111]

S0526

KGH_SPY

KGH_SPY has masqueraded as a legitimate Windows tool.[112]

G0094

Kimsuky

Kimsuky has renamed malware to legitimate names such as ESTCommon.dll or patch.dll.[113] Kimsuky has also disguised payloads using legitimate file names including a PowerShell payload named chrome.ps1. [114] Kimsuky has also used a malicious QR code that masqueraded as a legitimate package delivery service.[115]

S0669

KOCTOPUS

KOCTOPUS has been disguised as legitimate software programs associated with the travel and airline industries.[116]

S0356

KONNI

KONNI has created a shortcut called "Anti virus service.lnk" in an apparent attempt to masquerade as a legitimate file.[117]

S9035

LAMEHUG

LAMEHUG payloads have been disguised with legitimate looking filenames including AI_generator_uncensored_Canvas_PRO_v0.9.exe and AI_image_generator_v0.95.exe.[118][119]

S1160

Latrodectus

Latrodectus has been packed to appear as a component to Bitdefender’s kernel-mode driver, TRUFOS.SYS.[120]

G0032

Lazarus Group

Lazarus Group has renamed malicious code to disguise it as Microsoft's narrator and other legitimate files.[121][122]

S0395

LightNeuron

LightNeuron has used filenames associated with Exchange and Outlook for binary and configuration files, such as winmail.dat.[123]

S0582

LookBack

LookBack has a C2 proxy tool that masquerades as GUP.exe, which is software used by Notepad++.[124]

G1014

LuminousMoth

LuminousMoth has disguised their exfiltration malware as ZoomVideoApp.exe.[125]

S0409

Machete

Machete renamed payloads to masquerade as legitimate Google Chrome, Java, Dropbox, Adobe Reader and Python executables.[126][127]

G0095

Machete

Machete's Machete MSI installer has masqueraded as a legitimate Adobe Acrobat Reader installer.[128]

G0059

Magic Hound

Magic Hound has used dllhost.exe to mask Fast Reverse Proxy (FRP) and MicrosoftOutLookUpdater.exe for Plink.[129][130][131]

S1182

MagicRAT

MagicRAT stores configuration data in files and file paths mimicking legitimate operating system resources.[132]

S0652

MarkiRAT

MarkiRAT can masquerade as update.exe and svehost.exe; it has also mimicked legitimate Telegram and Chrome files.[74]

S0500

MCMD

MCMD has been named Readme.txt to appear legitimate.[133]

S0459

MechaFlounder

MechaFlounder has been downloaded as a file named lsass.exe, which matches the legitimate Windows file.[134]

G0045

menuPass

menuPass has been seen changing malicious files to appear legitimate.[135]

S0455

Metamorfo

Metamorfo has disguised an MSI file as the Adobe Acrobat Reader Installer and has masqueraded payloads as OneDrive, WhatsApp, or Spotify, for example.[136][137]

S0084

Mis-Type

Mis-Type saves itself as a file named msdtc.exe, which is also the name of the legitimate Microsoft Distributed Transaction Coordinator service binary.[138][139]

S0083

Misdat

Misdat saves itself as a file named msdtc.exe, which is also the name of the legitimate Microsoft Distributed Transaction Coordinator service binary.[138][139]

G0069

MuddyWater

MuddyWater has disguised malicious executables and used filenames and Registry key names associated with Windows Defender.[140][141][142]

G0129

Mustang Panda

Mustang Panda has used names like adobeupdate.dat and PotPlayerDB.dat to disguise PlugX, and a file named OneDrive.exe to load a Cobalt Strike payload.[143] Mustang Panda has also masqueraded legitimate browser plugin updates to include AdobePlugins.exe.[48]

G1020

Mustard Tempest

Mustard Tempest has used the filename AutoUpdater.js to mimic legitimate update files and has also used the Cyrillic homoglyph characters С (0xd0a1) and а (0xd0b0), to produce the filename Сhrome.Updаte.zip.[144][145]

G0019

Naikon

Naikon has disguised malicious programs as Google Chrome, Adobe, and VMware executables.[146]

S0630

Nebulae

Nebulae uses functions named StartUserModeBrowserInjection and StopUserModeBrowserInjection indicating that it's trying to imitate chrome_frame_helper.dll.[146]

S0198

NETWIRE

NETWIRE has masqueraded as legitimate software including TeamViewer and macOS Finder.[147]

S1090

NightClub

NightClub has chosen file names to appear legitimate including EsetUpdate-0117583943.exe for its dropper.[148]

S1100

Ninja

Ninja has used legitimate looking filenames for its loader including update.dll and x64.dll.[149]

S0353

NOKKI

NOKKI is written to %LOCALAPPDATA%\MicroSoft Updatea\svServiceUpdate.exe prior being executed in a new process in an apparent attempt to masquerade as a legitimate folder and file.[150]

S0340

Octopus

Octopus has been disguised as legitimate programs, such as Java and Telegram Messenger.[151][152]

G0049

OilRig

OilRig has named a downloaded copy of the Plink tunneling utility as \ProgramData\Adobe.exe.[153]

S0138

OLDBAIT

OLDBAIT installs itself in %ALLUSERPROFILE%\Application Data\Microsoft\MediaPlayer\updatewindws.exe; the directory name is missing a space and the file name is missing the letter "o."[154]

C0012

Operation CuckooBees

During Operation CuckooBees, the threat actors renamed a malicious executable to rundll32.exe to allow it to blend in with other Windows system files.[155]

C0061

Operation Digital Eye

During Operation Digital Eye, threat actors attempted to make filenames appear legitimate by tailoring them to the victim organization.[156]

C0006

Operation Honeybee

During Operation Honeybee, the threat actors used a legitimate Windows executable and secure directory for their payloads to bypass UAC.[157]

C0013

Operation Sharpshooter

During Operation Sharpshooter, threat actors installed Rising Sun in the Startup folder and disguised it as mssync.exe.[158]

C0014

Operation Wocao

During Operation Wocao, the threat actors renamed some tools and executables to appear as legitimate programs.[159]

S0402

OSX/Shlayer

OSX/Shlayer can masquerade as a Flash Player update.[160][161]

S1017

OutSteel

OutSteel attempts to download and execute Saint Bot to a statically-defined location attempting to mimic svchost: %TEMP%\svjhost.exe.[162]

S0072

OwaAuth

OwaAuth uses the filename owaauth.dll, which is a legitimate file that normally resides in %ProgramFiles%\Microsoft\Exchange Server\ClientAccess\Owa\Auth\; the malicious file by the same name is saved in %ProgramFiles%\Microsoft\Exchange Server\ClientAccess\Owa\bin\.[163]

G0040

Patchwork

Patchwork installed its payload in the startup programs folder as "Baidu Software Update." The group also adds its second stage payload to the startup programs as "Net Monitor."[164] They have also dropped QuasarRAT binaries as files named microsoft_network.exe and crome.exe.[165]

S1050

PcShare

PcShare has been named wuauclt.exe to appear as the legitimate Windows Update AutoUpdate Client.[55]

S0587

Penquin

Penquin has mimicked the Cron binary to hide itself on compromised systems.[166]

S0501

PipeMon

PipeMon modules are stored on disk with seemingly benign names including use of a file extension associated with a popular word processor.[167]

S0013

PlugX

PlugX has been disguised as legitimate Adobe and PotPlayer files.[168] PlugX has also imitated legitimate software directories and file names through the creation and storage of a legitimate EXE and the malicious DLLs.[169][170][171][172]

G0033

Poseidon Group

Poseidon Group tools attempt to spoof anti-virus processes as a means of self-defense.[173]

S1046

PowGoop

PowGoop has used a DLL named Goopdate.dll to impersonate a legitimate Google update file.[174]

G0056

PROMETHIUM

PROMETHIUM has disguised malicious installer files by bundling them with legitimate software installers.[175][176]

S1228

PUBLOAD

PUBLOAD has renamed malicious files to mimic legitimate file names such as adobe_wf.exe.[177]

S0196

PUNCHBUGGY

PUNCHBUGGY mimics filenames from %SYSTEM%\System32 to hide DLLs in %WINDIR% and/or %TEMP%.[178][179]

S9019

PureCrypter

PureCrypter has used multiple file names to appear legitimate such as firefox\firefox.exe, Google\chrome.exe, and Taskmgr.exe.[180]

S1032

PyDCrypt

PyDCrypt has dropped DCSrv under the svchost.exe name to disk.[181]

S0583

Pysa

Pysa has executed a malicious executable by naming it svchost.exe.[182]

S1242

Qilin

Qilin has named its payload file TeamViewer_Host_Setup to disguise itself as a legitimate TeamViewer file.[183]

S0269

QUADAGENT

QUADAGENT used the PowerShell filenames Office365DCOMCheck.ps1 and SystemDiskClean.ps1.[184]

S1084

QUIETEXIT

QUIETEXIT has attempted to change its name to cron upon startup. During incident response, QUIETEXIT samples have been identified that were renamed to blend in with other legitimate files.[185]

S0565

Raindrop

Raindrop was installed under names that resembled legitimate Windows file and directory names.[186][187]

S0629

RainyDay

RainyDay has used names to mimic legitimate software including "vmtoolsd.exe" to spoof Vmtools.[146]

S0458

Ramsay

Ramsay has masqueraded as a 7zip installer.[188][189]

S0495

RDAT

RDAT has masqueraded as VMware.exe.[190]

G1039

RedCurl

RedCurl mimicked legitimate file names and scheduled tasks, e.g. MicrosoftCurrentupdatesCheck and
MdMMaintenenceTask to mask malicious files and scheduled tasks.[191][192]

C0056

RedPenguin

During RedPenguin, UNC3886 created multiple strains of malware using names to mimic legitimate binaries such as appid, to, irad, lmpad, jdosd, and oemd.[193]

S0125

Remsec

The Remsec loader implements itself with the name Security Support Provider, a legitimate Windows function. Various Remsec .exe files mimic legitimate file names used by Microsoft, Symantec, Kaspersky, Hewlett-Packard, and VMWare. Remsec also disguised malicious modules using similar filenames as custom network encryption software on victims.[194][195]

S0496

REvil

REvil can mimic the names of known executables.[196]

G0106

Rocke

Rocke has used shell scripts which download mining executables and saves them with the filename "java".[197]

S1078

RotaJakiro

RotaJakiro has used the filename systemd-daemon in an attempt to appear legitimate.[198]

S9037

RustyWater

RustyWater has used reddit.exe as its file name and a Cloudflare logo.[199]

S0446

Ryuk

Ryuk has constructed legitimate appearing installation folder paths by calling GetWindowsDirectoryW and then inserting a null byte at the fourth character of the path. For Windows Vista or higher, the path would appear as C:\Users\Public.[200]

S0085

S-Type

S-Type may save itself as a file named msdtc.exe, which is also the name of the legitimate Microsoft Distributed Transaction Coordinator service binary.[138][139]

S1018

Saint Bot

Saint Bot has been disguised as a legitimate executable, including as Windows SDK.[201]

S9030

SameCoin

SameCoin has named files to appear legitimate such as "MicrosoftEdge.exe."[202]

S1099

Samurai

Samurai has created the directory %COMMONPROGRAMFILES%\Microsoft Shared\wmi\ to contain DLLs for loading successive stages.[203]

G0034

Sandworm Team

Sandworm Team has avoided detection by naming a malicious binary explorer.exe.[204][205]

S9008

Shai-Hulud

Shai-Hulud has masqueraded as a legitimate Bun installer.[206][207]

S1019

Shark

Shark binaries have been named audioddg.pdb and Winlangdb.pdb in order to appear legitimate.[61]

S0445

ShimRatReporter

ShimRatReporter spoofed itself as AlphaZawgyl_font.exe, a specialized Unicode font.[208]

S0589

Sibot

Sibot has downloaded a DLL to the C:\windows\system32\drivers\ folder and renamed it with a .sys extension.[89]

G1008

SideCopy

SideCopy has used a legitimate DLL file name, Duser.dll to disguise a malicious remote access tool.[209]

G0121

Sidewinder

Sidewinder has named malicious files rekeywiz.exe to match the name of a legitimate Windows executable.[210]

G0091

Silence

Silence has named its backdoor "WINWORD.exe".[211]

S0468

Skidmap

Skidmap has created a fake rm binary to replace the legitimate Linux binary.[212]

S0533

SLOTHFULMEDIA

SLOTHFULMEDIA has mimicked the names of known executables, such as mediaplayer.exe.[213]

S1035

Small Sieve

Small Sieve can use variations of Microsoft and Outlook spellings, such as "Microsift", in its file names to avoid detection.[214]

S1124

SocGholish

SocGholish has been named AutoUpdater.js to mimic legitimate update files.[145]

C0024

SolarWinds Compromise

During the SolarWinds Compromise, APT29 renamed software and DLLs with legitimate names to appear benign.[215][216]

G0054

Sowbug

Sowbug named its tools to masquerade as Windows or Adobe Reader software, such as by using the file name adobecms.exe and the directory CSIDL_APPDATA\microsoft\security.[217]

S0058

SslMM

To establish persistence, SslMM identifies the Start Menu Startup directory and drops a link to its own executable disguised as an "Office Start," "Yahoo Talk," "MSN Gaming Z0ne," or "MSN Talk" shortcut.[218]

S0188

Starloader

Starloader has masqueraded as legitimate software update packages such as Adobe Acrobat Reader and Intel.[217]

S1238

STATICPLUGIN

STATICPLUGIN has leveraged naming conventions that match legitimate services to include AdobePlugins.exe.[48]

G1046

Storm-1811

Storm-1811 has disguised Cobalt Strike installers as a malicious DLL masquerading as part of a legitimate 7zip installation package.[219]

S1183

StrelaStealer

StrelaStealer payloads have tailored filenames to include names identical to the name of the targeted organization or company.[220]

S1034

StrifeWater

StrifeWater has been named calc.exe to appear as a legitimate calculator program.[221]

S0491

StrongPity

StrongPity has been bundled with legitimate software installation files for disguise.[175]

S1042

SUGARDUMP

SUGARDUMP has been named CrashReporter.exe to appear as a legitimate Mozilla executable.[222]

S0559

SUNBURST

SUNBURST created VBScripts that were named after existing services or folders to blend into legitimate activities.[187]

S0562

SUNSPOT

SUNSPOT was identified on disk with a filename of taskhostsvc.exe and it created an encrypted log file at C:\Windows\Temp\vmware-vmdmp.log.[223]

S0578

SUPERNOVA

SUPERNOVA has masqueraded as a legitimate SolarWinds DLL.[224][225]

G1018

TA2541

TA2541 has used file names to mimic legitimate Windows files or system functionality.[226]

S0586

TAINTEDSCRIBE

The TAINTEDSCRIBE main executable has disguised itself as Microsoft’s Narrator.[121]

S1011

Tarrask

Tarrask has masqueraded as executable files such as winupdate.exe, date.exe, or win.exe.[227]

G0139

TeamTNT

TeamTNT has replaced .dockerd and .dockerenv with their own scripts and cryptocurrency mining software.[228]

S0560

TEARDROP

TEARDROP files had names that resembled legitimate Window file and directory names.[229][187]

S0595

ThiefQuest

ThiefQuest prepends a copy of itself to the beginning of an executable file while maintaining the name of the executable.[230][231]

S0665

ThreatNeedle

ThreatNeedle chooses its payload creation path from a randomly selected service name from netsvc.[232]

S0668

TinyTurla

TinyTurla has been deployed as w64time.dll to appear legitimate.[233]

G1022

ToddyCat

ToddyCat has used the name debug.exe for malware components.[203]

S1239

TONESHELL

TONESHELL has renamed malicious files to mimic legitimate file names and file extensions.[177] TONESHELL has also masqueraded as legitimate file names to include LogMeIn.dll.[234]

S1201

TRANSLATEXT

TRANSLATEXT has been named GoogleTranslate.crx to masquerade as a legitimate Chrome extension.[235]

G0134

Transparent Tribe

Transparent Tribe can mimic legitimate Windows directories by using the same icons and names.[236]

C0030

Triton Safety Instrumented System Attack

In the Triton Safety Instrumented System Attack, TEMP.Veles renamed files to look like legitimate files, such as Windows update files or Schneider Electric application files.

S1196

Troll Stealer

Troll Stealer is typically installed via a dropper file that masquerades as a legitimate security program installation file.[237][87]

G0081

Tropic Trooper

Tropic Trooper has hidden payloads in Flash directories and fake installer files.[238]

S9034

Tsundere Botnet

Tsundere Botnet has disguised its MSI installer as a fake installer for popular games and software.[239]

G0010

Turla

Turla has named components of LunarWeb to mimic Zabbix agent logs.[240]

S0386

Ursnif

Ursnif has used strings from legitimate system files and existing folders for its file, folder, and Registry entry names.[241]

S0136

USBStealer

USBStealer mimics a legitimate Russian program called USB Disk Security.[242]

G1047

Velvet Ant

Velvet Ant used a malicious DLL, iviewers.dll, that mimics the legitimate "OLE/COM Object Viewer" within Windows.[243]

S1217

VIRTUALPITA

VIRTUALPITA samples have been found in /usr/libexec/setconf/ksmd and /usr/bin/ksmd, named to spoof the legitimate Kernel Same-Page Merging Daemon binary. [244]

G1055

VOID MANTICORE

VOID MANTICORE has masqueraded malicious payloads to resemble legitimate applications.[245][246] VOID MANTICORE has leveraged malicious payloads that use nomenclature associated with common applications that include Pictory, KeePass, WhatsApp, and Telegram.[246]

G1017

Volt Typhoon

Volt Typhoon has used legitimate looking filenames for compressed copies of the ntds.dit database and used names including cisco_up.exe, cl64.exe, vm3dservice.exe, watchdogd.exe, Win.exe, WmiPreSV.exe, and WmiPrvSE.exe for the Earthworm and Fast Reverse Proxy tools.[247][248][249]

G0107

Whitefly

Whitefly has named the malicious DLL the same name as DLLs belonging to legitimate software from various security vendors.[250]

S0141

Winnti for Windows

A Winnti for Windows implant file was named ASPNET_FILTER.DLL, mimicking the legitimate ASP.NET ISAPI filter DLL with the same name.[251]

G0090

WIRTE

WIRTE has used security service provider naming conventions such as ESET and Kasperky ("Kaspersky Update Agent") in order to appear legitimate.[252][202]

S1248

XORIndex Loader

XORIndex Loader has leveraged legitimate package names to mimic frequently utilized tools to entice victims to download and execute malicious payloads.[253]

S0086

ZLib

ZLib mimics the resource version information of legitimate Realtek Semiconductor, Nvidia, or Synaptics modules.[138]