Threat Actor

APT3

APT3 is a China-based threat group that researchers have attributed to China's Ministry of State Security. This group is responsible for the campaigns known as Operation Clandestine Fox, Operation Clandestine Wolf, and Operation Double Tap. As of June 2015, the group appears to have shifted from targeting primarily US victims to primarily political organizations in Hong Kong.

44
Techniques
6
Software
0
indicators on this record

Properties

Last source
MITRE ATT&CK
STIX ID
intrusion-set--0bbdf25b-30ff-4894-a1cd-49260d0dd2d9
In Signal since
initial import (Sep 2026)
Retrieved at
2026-11-01T16:36:58+00:00
Origin source
attack_description
Type
intrusion-set
Origin country
CN

MITRE ATT&CK Techniques (showing 30 of 44)

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Accessibility Features (T1546.008)

Adversaries may establish persistence and/or elevate privileges by executing malicious content triggered by accessibility features. Windows contains a

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Additional Local or Domain Groups (T1098.007)

An adversary may add additional local or domain groups to an adversary-controlled account to maintain persistent access to a system or domain. On Win

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Archive via Utility (T1560.001)

Adversaries may use utilities to compress and/or encrypt collected data prior to exfiltration. Many utilities include functionalities to compress, enc

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Credentials In Files (T1552.001)

Adversaries may search local file systems and remote file shares for files containing insecurely stored credentials. These can be files created by use

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Credentials from Web Browsers (T1555.003)

Adversaries may acquire credentials from web browsers by reading files specific to the target browser. Web bro

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DLL (T1574.001)

Adversaries may abuse dynamic-link library files (DLLs) in order to achieve persistence, escalate privileges, and evade defenses. DLLs are libraries t

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Data from Local System (T1005)

Adversaries may search local system sources, such as file systems, configuration files, local databases, virtual machine files, or process memory, to

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Domain Accounts (T1078.002)

Adversaries may obtain and abuse credentials of a domain account as a means of gaining Initial Access, Persistence, Privilege Escalation, or Defense E

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Exfiltration Over C2 Channel (T1041)

Adversaries may steal data by exfiltrating it over an existing command and control channel. Stolen data is encoded into the normal communications chan

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Exploitation for Client Execution (T1203)

Adversaries may exploit software vulnerabilities in client applications to execute code. Vulnerabilities can exist in software due to unsecure coding

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External Proxy (T1090.002)

Adversaries may use an external proxy to act as an intermediary for network communications to a command and control server to avoid direct connections

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File Deletion (T1070.004)

Adversaries may delete files left behind by the actions of their intrusion activity. Malware, tools, or other non-native files dropped or created on a

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File and Directory Discovery (T1083)

Adversaries may enumerate files and directories or may search in specific locations of a host or network share for certain information within a file s

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Hidden Window (T1564.003)

Adversaries may use hidden windows to conceal malicious activity from the plain sight of users. In some cases, windows that would typically be display

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Indicator Removal from Tools (T1027.005)

Adversaries may remove indicators from tools if they believe their malicious tool was detected, quarantined, or otherwise curtailed. They can modify t

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Ingress Tool Transfer (T1105)

Adversaries may transfer tools or other files from an external system into a compromised environment. Tools or files may be copied from an external ad

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Keylogging (T1056.001)

Adversaries may log user keystrokes to intercept credentials as the user types them. Keylogging is likely to be used to acquire credentials for new ac

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LSASS Memory (T1003.001)

Adversaries may attempt to access credential material stored in the process memory of the Local Security Authority Subsystem Service (LSASS). After a

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Local Account (T1087.001)

Adversaries may attempt to get a listing of local system accounts. This information can help adversaries determine which local accounts exist on a sys

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Local Account (T1136.001)

Adversaries may create a local account to maintain access to victim systems. Local accounts are those configured by an organization for use by users,

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Local Data Staging (T1074.001)

Adversaries may stage collected data in a central location or directory on the local system prior to Exfiltration. Data may be kept in separate files

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Malicious Link (T1204.001)

An adversary may rely upon a user clicking a malicious link in order to gain execution. Users may be subjected to social engineering to get them to cl

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Masquerade Account Name (T1036.010)

Adversaries may match or approximate the names of legitimate accounts to make newly created ones appear benign. This will typically occur during [Crea

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Multi-Stage Channels (T1104)

Adversaries may create multiple stages for command and control that are employed under different conditions or for certain functions. Use of multiple

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Non-Application Layer Protocol (T1095)

Adversaries may use an OSI non-application layer protocol for communication between host and C2 server or among infected hosts within a network. The l

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Obfuscated Files or Information (T1027)

Adversaries may attempt to make an executable or file difficult to discover or analyze by encrypting, encoding, or otherwise obfuscating its contents

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Password Cracking (T1110.002)

Adversaries may use password cracking to attempt to recover usable credentials, such as plaintext passwords, when credential material such as password

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Permission Groups Discovery (T1069)

Adversaries may attempt to discover group and permission settings. This information can help adversaries determine which user accounts and groups are

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PowerShell (T1059.001)

Adversaries may abuse PowerShell commands and scripts for execution. PowerShell is a powerful interactive command-line interface and scripting environ

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Process Discovery (T1057)

Adversaries may attempt to get information about running processes on a system. Information obtained could be used to gain an understanding of common

Software & Tools (6)

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LaZagne [tool]

LaZagne is a post-exploitation, open-source tool used to recover stored passwords on a system. It has modul

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OSInfo [malware]

OSInfo is a custom tool used by APT3 to do internal discovery on a

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PlugX [malware]

PlugX is a remote access tool (RAT) with modular plugins that has been used by multiple threat groups.(Cita

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RemoteCMD [malware]

RemoteCMD is a custom tool used by APT3 to execute commands on a r

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SHOTPUT [malware]

SHOTPUT is a custom backdoor used by APT3. (Citation: FireEye Clan

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schtasks [tool]

schtasks is used to schedule execution of programs or scripts on a Windows system to run at a specific date

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