Mapping To APT33

APT33 is a suspected Iranian threat group that has carried out operations since at least 2013. The group has targeted organizations across multiple industries in the United States, Saudi Arabia, and South Korea, with a particular interest in the aviation and energy sectors.


Disclaimer: We present this mapping to stimulate thinking about active defense options to combat this adversary, not to present all possibilities. We invite you to use this as a guide and add your own use cases for applying Shield techniques to counter each adversary action.

Note: All ATT&CK Group sub-technique mappings have been remapped to their parent technique and were derived from Group Technique mappings in ATT&CK v8.

Details
ATT&CK ID: G0064
Associated Groups:  APT33, HOLMIUM, Elfin
Note:  This page uses Adversary Group data from MITRE ATT&CK.
ATT&CK Technique Opportunity Space AD Technique Use Case
T1003 - OS Credential Dumping There is an opportunity to deploy a tripwire that triggers an alert when an adversary touches a network resource or uses a specific technique. DTE0012 - Decoy Credentials A defender can seed systems with decoy credentials in a variety of locations and establish alerting that will trigger if an adversary harvests the credentials and attempts to use them.
T1027 - Obfuscated Files or Information In an adversary engagement scenario, there is an opportunity to introduce decoy systems that can influence an adversary's behavior or allow you to observe how they perform a specific task. DTE0017 - Decoy System A defender could implement a decoy system to study how and when an adversary obfuscate files and hides information.
T1040 - Network Sniffing There is an opportunity for the defender to observe the adversary and control what they can see, what effects they can have, and/or what data they can access. DTE0036 - Software Manipulation By changing the output of network sniffing utilities normally found on a system, you can prevent adversaries from seeing particular content or making use of the results at all.
T1040 - Network Sniffing There is an opportunity to present decoy processes to an adversary to influence their behaviors, test their interest, or add legitimacy to a system or environment. DTE0016 - Decoy Process The defender can run processes on legitimate systems that create network artifacts for an adversary to collect. These artifacts may contain data such as credentials, hostnames, etc., that would lead an adversary to target decoy systems and networks.
T1040 - Network Sniffing There is an opportunity to entice the adversary to expose additional TTPs. DTE0025 - Network Diversity The defender can add unique endpoints, servers, routers, and other devices to give the adversary a broader attack surface. This can cause the adversary to expose additional capabilities.
T1048 - Exfiltration Over Alternative Protocol There is an opportunity to disrupt or enable and adversary's exfiltration activities by blocking/unblocking the traffic to their Command and Control (C2) location. DTE0026 - Network Manipulation A defender can prevent or enable use of alternate protocols for exfiltration by blocking/unblocking unnecessary ports and protocols.
T1053 - Scheduled Task/Job There is an opportunity to study the adversary and collect first-hand observations about them and their tools. DTE0001 - Admin Access A defender can enable Admin Access on a system to see if the adversary utilizes that access to create scheduled tasks to launch their malware or tools.
T1053 - Scheduled Task/Job There is an opportunity to study the adversary and collect first-hand observations about them and their tools. DTE0017 - Decoy System A defender can configure a decoy system with limited restrictions to see if the adversary creates or alters scheduled tasks to launch their malware.
T1053 - Scheduled Task/Job There is an opportunity to create a detection with a moderately high probability of success. DTE0034 - System Activity Monitoring A defender can capture system activity logs and generate alerts if the adversary creates new scheduled tasks or alters existing tasks.
T1059 - Command and Scripting Interpreter There is an opportunity for the defender to observe the adversary and control what they can see, what effects they can have, and/or what data they can access. DTE0036 - Software Manipulation A defender can manipulate the output of system commands issued to alter information the adversary might use during their activity.
T1059 - Command and Scripting Interpreter There is an opportunity for the defender to observe the adversary and control what they can see, what effects they can have, and/or what data they can access. DTE0036 - Software Manipulation A defender can modify the functionality of commands used to delete files so that the files are copied to a safe location before they are deleted.
T1059 - Command and Scripting Interpreter There is an opportunity for the defender to observe the adversary and control what they can see, what effects they can have, and/or what data they can access. DTE0034 - System Activity Monitoring A defender can detect the presence of an adversary by monitoring for processes that are created by commands and/or scripts they execute on a system.
T1068 - Exploitation for Privilege Escalation There is an opportunity to study the adversary and collect first-hand observations about them and their tools. DTE0001 - Admin Access A defender can configure system users to not have admin access in order to ensure privilege escalation requires exploitation.
T1071 - Application Layer Protocol There is an opportunity to monitor network traffic for different protocols, anomalous traffic patterns, transfer of data, etc. to determine the presence of an adversary. DTE0027 - Network Monitoring The defender can implement network monitoring for and alert on anomalous traffic patterns, large or unexpected data transfers, and other activity that may reveal the presence of an adversary.
T1078 - Valid Accounts There is an opportunity to introduce user accounts that are used to make a system look more realistic. DTE0010 - Decoy Account A defender can create decoy user accounts which are used to make a decoy system or network look more realistic.
T1078 - Valid Accounts There is an opportunity to deploy a tripwire that triggers an alert when an adversary touches a network resource or uses a specific technique. DTE0012 - Decoy Credentials A defender can seed systems with decoy credentials in a variety of locations and establish alerting that will trigger if an adversary harvests the credentials and attempts to use them.
T1078 - Valid Accounts There is an opportunity to prepare user accounts so they look used and authentic. DTE0008 - Burn-In A defender can prepare a Decoy System by logging in to the Decoy Account and using it in ways consistent with the deception story, creating artifacts in the system that make it look legitimate.
T1105 - Ingress Tool Transfer There is an opportunity to collect network data and analyze the adversary activity it contains. DTE0028 - PCAP Collection Collecting full packet capture of all network traffic allows you to review what happened over the connection and identify command and control traffic and/or exfiltration activity.
T1110 - Brute Force There is an opportunity to create a detection with a moderately high probability of success. DTE0034 - System Activity Monitoring A defender can monitor for user login activity that may reveal an adversary leveraging brute force techniques.
T1132 - Data Encoding There is an opportunity to reveal data that the adversary has tried to protect from defenders DTE0031 - Protocol Decoder Defenders can develop protocol decoders that can decrypt network capture data and expose an adversary's command and control traffic as well as their exfiltration activity.
T1203 - Exploitation for Client Execution There is an opportunity to study the adversary and collect first-hand observations about them and their tools. DTE0017 - Decoy System A defender can use a decoy system to see if an adversary exploits vulnerable software in order to compromise the system.
T1203 - Exploitation for Client Execution There is an opportunity to discover who or what is being targeting by an adversary. DTE0004 - Application Diversity A defender can install one or more applications on a decoy system with a variety of patch levels to see how an adversary might exploit those applications.
T1204 - User Execution There is an opportunity to study the adversary and collect first-hand observations about them and their tools. DTE0018 - Detonate Malware A defender can execute adversary malware on a decoy system and examine its behaviors or potentially engage with the adversary to obtain further intelligence.
T1546 - Event Triggered Execution There is an opportunity to use tools and controls to stop an adversary's activity. DTE0006 - Baseline A defender can revert a system to a verified baseline a frequent, recurring basis in order to remove adversary persistence mechanisms.
T1546 - Event Triggered Execution There is an opportunity to study the adversary and collect first-hand observations about them and their tools. DTE0001 - Admin Access A defender can allow Admin access on a decoy system or network to allow an adversary to use event triggered execution.
T1547 - Boot or Logon Autostart Execution There is an opportunity to use tools and controls to stop an adversary's activity. DTE0006 - Baseline A defender can store good copies of registry startup keys and restore them on a frequent basis. This can prevent an adversary from using them to launch malware on system startup.
T1552 - Unsecured Credentials In order to prolong an adversary engagement operation or enable detections, there is an opportunity to introduce credentials to an adversary that you want them to collect and use. DTE0012 - Decoy Credentials A defender can plant decoy credentials across an array of locations to increase the chances of an adversary finding and using them.
T1555 - Credentials from Password Stores In order to prolong an adversary engagement operation or enable detections, there is an opportunity to introduce credentials to an adversary that you want them to collect and use. DTE0012 - Decoy Credentials A defender can plant decoy credentials across an array of locations to increase the chances of an adversary finding and using them.
T1560 - Archive Collected Data There is an opportunity for the defender to observe the adversary and control what they can see, what effects they can have, and/or what data they can access. DTE0036 - Software Manipulation A defender might alter APIs to expose data that is being archived, encoded, and/or encrypted. This can also be used to corrupt the action so the data isn't usable.
T1566 - Phishing A phishing email can be detected and blocked from arriving at the intended recipient. DTE0019 - Email Manipulation A defender can intercept emails that are detected as suspicious or malicious by email detection tools and prevent deliver to the intended target.
T1566 - Phishing A phishing email can be detected and moved from the intended recipient to a decoy account for reading and execution. DTE0023 - Migrate Attack Vector A defender can move suspicious emails to a decoy system prior to opening and examining the email.
T1566 - Phishing Users trained and encouraged to report phishing can detect attacks that other defenses do not. DTE0035 - User Training A program to train and exercise the anti-phishing skills of users can create "Human Sensors" that help detect phishing attacks.
T1566 - Phishing There is an opportunity to discover who or what is being targeting by an adversary. DTE0015 - Decoy Persona A defender can seed information about the decoy persona's personal accounts on systems to see if the adversary collects and uses that information in future activity.
T1571 - Non-Standard Port There is an opportunity to monitor network traffic for different protocols, anomalous traffic patterns, transfer of data, etc. to determine the presence of an adversary. DTE0027 - Network Monitoring The defender can implement network monitoring for and alert on anomalous traffic patterns, large or unexpected data transfers, and other activity that may reveal the presence of an adversary.
T1573 - Encrypted Channel There is an opportunity to reveal data that the adversary has tried to protect from defenders DTE0031 - Protocol Decoder Defenders can reverse engineer malware and develop protocol decoders that can decrypt and expose adversary communications