Query Registry

Adversaries may interact with the Windows Registry to gather information about the system, configuration, and installed software.

The Registry contains a significant amount of information about the operating system, configuration, software, and security.[1] Information can easily be queried using the Reg utility, though other means to access the Registry exist. Some of the information may help adversaries to further their operation within a network. Adversaries may use the information from Query Registry during automated discovery to shape follow-on behaviors, including whether or not the adversary fully infects the target and/or attempts specific actions.

ID: T1012
Sub-techniques:  No sub-techniques
Tactic: Discovery
Platforms: Windows
Permissions Required: Administrator, SYSTEM, User
Data Sources: Command: Command Execution, Process: OS API Execution, Process: Process Creation, Windows Registry: Windows Registry Key Access
CAPEC ID: CAPEC-647
Version: 1.2
Created: 31 May 2017
Last Modified: 26 March 2020

Procedure Examples

ID Name Description
S0045 ADVSTORESHELL

ADVSTORESHELL can enumerate registry keys.[2][3]

G0050 APT32

APT32's backdoor can query the Windows Registry to gather system information. [4]

G0087 APT39

APT39 has used various strains of malware to query the Registry.[5]

S0438 Attor

Attor has opened the registry and performed query searches.[6]

S0344 Azorult

Azorult can check for installed software on the system under the Registry key Software\Microsoft\Windows\CurrentVersion\Uninstall.[7]

S0414 BabyShark

BabyShark has executed the reg query command for HKEY_CURRENT_USER\Software\Microsoft\Terminal Server Client\Default.[8]

S0031 BACKSPACE

BACKSPACE is capable of enumerating and making modifications to an infected system's Registry.[9]

S0239 Bankshot

Bankshot searches for certain Registry keys to be configured before executing the payload.[10]

S0534 Bazar

Bazar can query Windows\CurrentVersion\Uninstall for installed applications.[11][12]

S0574 BendyBear

BendyBear can query the host's Registry key at HKEY_CURRENT_USER\Console\QuickEdit to retrieve data.[13]

S0570 BitPaymer

BitPaymer can use the RegEnumKeyW to iterate through Registry keys.[14]

S0252 Brave Prince

Brave Prince gathers information about the Registry.[15]

S0030 Carbanak

Carbanak checks the Registry key HKCU\Software\Microsoft\Windows\CurrentVersion\Internet Settings for proxy configurations information.[16]

S0484 Carberp

Carberp has searched the Image File Execution Options registry key for "Debugger" within every subkey.[17]

S0335 Carbon

Carbon enumerates values in the Registry.[18]

S0348 Cardinal RAT

Cardinal RAT contains watchdog functionality that periodically ensures HKCU\Software\Microsoft\Windows NT\CurrentVersion\Windows\Load is set to point to its executable.[19]

G0114 Chimera

Chimera has queried Registry keys using reg query \\HKU\\SOFTWARE\Microsoft\Terminal Server Client\Servers and reg query \\HKU\\Software\Microsoft\Windows\CurrentVersion\Internet Settings.[20]

S0023 CHOPSTICK

CHOPSTICK provides access to the Windows Registry, which can be used to gather information.[21]

S0154 Cobalt Strike

Cobalt Strike can query HKEY_CURRENT_USER\Software\Microsoft\Office\\Excel\Security\AccessVBOM\ to determine if the security setting for restricting default programmatic access is enabled.[22]

S0126 ComRAT

ComRAT can check the default browser by querying HKCR\http\shell\open\command.[23]

S0354 Denis

Denis queries the Registry for keys and values.[24]

S0021 Derusbi

Derusbi is capable of enumerating Registry keys and values.[25]

S0186 DownPaper

DownPaper searches and reads the value of the Windows Update Registry Run key.[26]

G0074 Dragonfly 2.0

Dragonfly 2.0 queried the Registry to identify victim information.[27]

S0567 Dtrack

Dtrack can collect the RegisteredOwner, RegisteredOrganization, and InstallDate registry values.[28]

S0091 Epic

Epic uses the rem reg query command to obtain values from Registry keys.[29]

S0512 FatDuke

FatDuke can get user agent strings for the default browser from HKCU\Software\Classes\http\shell\open\command.[30]

S0267 FELIXROOT

FELIXROOT queries the Registry for specific keys for potential privilege escalation and proxy information. FELIXROOT has also used WMI to query the Windows Registry.[31][32]

S0182 FinFisher

FinFisher queries Registry values as part of its anti-sandbox checks.[33][34]

G0117 Fox Kitten

Fox Kitten has accessed Registry hives ntuser.dat and UserClass.dat.[35]

S0032 gh0st RAT

gh0st RAT has checked for the existence of a Service key to determine if it has already been installed on the system.[36]

S0249 Gold Dragon

Gold Dragon enumerates registry keys with the command regkeyenum and obtains information for the Registry key HKEY_CURRENT_USER\SOFTWARE\Microsoft\Windows\CurrentVersion\Run.[15]

S0376 HOPLIGHT

A variant of HOPLIGHT hooks lsass.exe, and lsass.exe then checks the Registry for the data value 'rdpproto' under the key SYSTEM\CurrentControlSet\Control\Lsa Name.[37]

S0203 Hydraq

Hydraq creates a backdoor through which remote attackers can retrieve system information, such as CPU speed, from Registry keys.[38][39]

S0260 InvisiMole

InvisiMole can enumerate Registry values, keys, and data.[40]

S0201 JPIN

JPIN can enumerate Registry keys.[41]

G0032 Lazarus Group

Lazarus Group malware IndiaIndia checks Registry keys within HKCU and HKLM to determine if certain applications are present, including SecureCRT, Terminal Services, RealVNC, TightVNC, UltraVNC, Radmin, mRemote, TeamViewer, FileZilla, pcAnyware, and Remote Desktop. Another Lazarus Group malware sample checks for the presence of the following Registry key:HKEY_CURRENT_USER\Software\Bitcoin\Bitcoin-Qt.[42][43][44]

S0532 Lucifer

Lucifer can check for existing stratum cryptomining information in HKLM\Software\Microsoft\Windows\CurrentVersion\spreadCpuXmr – %stratum info%.[45]

S0385 njRAT

njRAT can read specific registry values.[46]

G0049 OilRig

OilRig has used reg query "HKEY_CURRENT_USER\Software\Microsoft\Terminal Server Client\Default" on a victim to query the Registry.[47]

G0116 Operation Wocao

Operation Wocao has queried the registry to detect recent PuTTY sessions.[48]

S0165 OSInfo

OSInfo queries the registry to look for information about Terminal Services.[49]

S0517 Pillowmint

Pillowmint has used shellcode which reads code stored in the registry keys \REGISTRY\SOFTWARE\Microsoft\DRM using the native Windows API as well as read HKEY_LOCAL_MACHINE\System\CurrentControlSet\Services\Tcpip\Parameters\Interfaces as part of its C2.[50]

S0013 PlugX

PlugX can enumerate and query for information contained within the Windows Registry.[51][52]

S0145 POWERSOURCE

POWERSOURCE queries Registry keys in preparation for setting Run keys to achieve persistence.[53]

S0194 PowerSploit

PowerSploit contains a collection of Privesc-PowerUp modules that can query Registry keys for potential opportunities.[54][55]

S0184 POWRUNER

POWRUNER may query the Registry by running reg query on a victim.[56]

S0238 Proxysvc

Proxysvc gathers product names from the Registry key: HKLM\Software\Microsoft\Windows NT\CurrentVersion ProductName and the processor description from the Registry key HKLM\HARDWARE\DESCRIPTION\System\CentralProcessor\0 ProcessorNameString.[57]

S0269 QUADAGENT

QUADAGENT checks if a value exists within a Registry key in the HKCU hive whose name is the same as the scheduled task it has created.[58]

S0241 RATANKBA

RATANKBA uses the command reg query "HKCU\SOFTWARE\Microsoft\Windows\CurrentVersion\InternetSettings".[59]

S0172 Reaver

Reaver queries the Registry to determine the correct Startup path to use for persistence.[60]

S0075 Reg

Reg may be used to gather details from the Windows Registry of a local or remote system at the command-line interface.[61]

S0496 REvil

REvil can query the Registry to get random file extensions to append to encrypted files.[62]

S0240 ROKRAT

ROKRAT accesses the HKLM\System\CurrentControlSet\Services\mssmbios\Data\SMBiosData Registry key to obtain the System manufacturer value to identify the machine type.[63]

S0140 Shamoon

Shamoon queries several Registry keys to identify hard disk partitions to overwrite.[64]

S0589 Sibot

Sibot has queried the registry for proxy server information.[65]

G0038 Stealth Falcon

Stealth Falcon malware attempts to determine the installed version of .NET by querying the Registry.[66]

S0380 StoneDrill

StoneDrill has looked in the registry to find the default browser path.[67]

S0559 SUNBURST

SUNBURST collected the registry value HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Cryptography\MachineGuid from compromised hosts.[68]

S0242 SynAck

SynAck enumerates Registry keys associated with event logs.[69]

S0560 TEARDROP

TEARDROP checked that HKU\SOFTWARE\Microsoft\CTF existed before decoding its embedded payload.[68][70]

G0027 Threat Group-3390

A Threat Group-3390 tool can read and decrypt stored Registry values.[71]

G0010 Turla

Turla surveys a system upon check-in to discover information in the Windows Registry with the reg query command.[29] Turla has also retrieved PowerShell payloads hidden in Registry keys as well as checking keys associated with null session named pipes .[72]

S0386 Ursnif

Ursnif has used Reg to query the Registry for installed programs.[73][74]

S0476 Valak

Valak can use the Registry for code updates and to collect credentials.[75]

S0180 Volgmer

Volgmer checks the system for certain Registry keys.[76]

S0579 Waterbear

Waterbear can query the Registry to retrieve data.[77]

S0155 WINDSHIELD

WINDSHIELD can gather Registry values.[78]

S0251 Zebrocy

Zebrocy executes the reg query command to obtain information in the Registry.[79]

S0330 Zeus Panda

Zeus Panda checks for the existence of a Registry key and if it contains certain values.[80]

G0128 ZIRCONIUM

ZIRCONIUM has used a tool to query the Registry for proxy settings.[81]

S0412 ZxShell

ZxShell can query the netsvc group value data located in the svchost group Registry key.[82]

Mitigations

This type of attack technique cannot be easily mitigated with preventive controls since it is based on the abuse of system features.

Detection

System and network discovery techniques normally occur throughout an operation as an adversary learns the environment. Data and events should not be viewed in isolation, but as part of a chain of behavior that could lead to other activities, such as Lateral Movement, based on the information obtained.

Interaction with the Windows Registry may come from the command line using utilities such as Reg or through running malware that may interact with the Registry through an API. Command-line invocation of utilities used to query the Registry may be detected through process and command-line monitoring. Remote access tools with built-in features may interact directly with the Windows API to gather information. Information may also be acquired through Windows system management tools such as Windows Management Instrumentation and PowerShell.

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