Encrypt Sensitive Information
Protect sensitive information with strong encryption.
Techniques Addressed by Mitigation
| Domain | ID | Name | Use | |
|---|---|---|---|---|
| Enterprise | T1557 | Adversary-in-the-Middle |
Ensure that all wired and/or wireless traffic is encrypted appropriately. Use best practices for authentication protocols, such as Kerberos, and ensure web traffic that may contain credentials is protected by SSL/TLS. |
|
| .002 | ARP Cache Poisoning |
Ensure that all wired and/or wireless traffic is encrypted appropriately. Use best practices for authentication protocols, such as Kerberos, and ensure web traffic that may contain credentials is protected by SSL/TLS. |
||
| Enterprise | T1119 | Automated Collection |
Encryption and off-system storage of sensitive information may be one way to mitigate collection of files, but may not stop an adversary from acquiring the information if an intrusion persists over a long period of time and the adversary is able to discover and access the data through other means. Strong passwords should be used on certain encrypted documents that use them to prevent offline cracking through Brute Force techniques. |
|
| Enterprise | T1020 | .001 | Automated Exfiltration: Traffic Duplication |
Ensure that all wired and/or wireless traffic is encrypted appropriately. Use best practices for authentication protocols, such as Kerberos, and ensure web traffic that may contain credentials is protected by SSL/TLS. |
| Enterprise | T1530 | Data from Cloud Storage Object |
Encrypt data stored at rest in cloud storage.[1][2] Managed encryption keys can be rotated by most providers. At a minimum, ensure an incident response plan to storage breach includes rotating the keys and test for impact on client applications.[3] |
|
| Enterprise | T1602 | Data from Configuration Repository |
Configure SNMPv3 to use the highest level of security (authPriv) available.[4] |
|
| .001 | SNMP (MIB Dump) |
Configure SNMPv3 to use the highest level of security (authPriv) available.[4] |
||
| .002 | Network Device Configuration Dump |
Configure SNMPv3 to use the highest level of security (authPriv) available. [4] |
||
| Enterprise | T1565 | Data Manipulation |
Consider encrypting important information to reduce an adversary’s ability to perform tailored data modifications. |
|
| .001 | Stored Data Manipulation |
Consider encrypting important information to reduce an adversary’s ability to perform tailored data modifications. |
||
| .002 | Transmitted Data Manipulation |
Encrypt all important data flows to reduce the impact of tailored modifications on data in transit. |
||
| Enterprise | T1114 | Email Collection |
Use of encryption provides an added layer of security to sensitive information sent over email. Encryption using public key cryptography requires the adversary to obtain the private certificate along with an encryption key to decrypt messages. |
|
| .001 | Local Email Collection |
Use of encryption provides an added layer of security to sensitive information sent over email. Encryption using public key cryptography requires the adversary to obtain the private certificate along with an encryption key to decrypt messages. |
||
| .002 | Remote Email Collection |
Use of encryption provides an added layer of security to sensitive information sent over email. Encryption using public key cryptography requires the adversary to obtain the private certificate along with an encryption key to decrypt messages. |
||
| .003 | Email Forwarding Rule |
Use of encryption provides an added layer of security to sensitive information sent over email. Encryption using public key cryptography requires the adversary to obtain the private certificate along with an encryption key to decrypt messages. |
||
| Enterprise | T1070 | Indicator Removal on Host |
Obfuscate/encrypt event files locally and in transit to avoid giving feedback to an adversary. |
|
| .001 | Clear Windows Event Logs |
Obfuscate/encrypt event files locally and in transit to avoid giving feedback to an adversary. |
||
| .002 | Clear Linux or Mac System Logs |
Obfuscate/encrypt event files locally and in transit to avoid giving feedback to an adversary. |
||
| Enterprise | T1040 | Network Sniffing |
Ensure that all wired and/or wireless traffic is encrypted appropriately. Use best practices for authentication protocols, such as Kerberos, and ensure web traffic that may contain credentials is protected by SSL/TLS. |
|
| Enterprise | T1003 | OS Credential Dumping |
Ensure Domain Controller backups are properly secured. |
|
| .003 | NTDS |
Ensure Domain Controller backups are properly secured.[5] |
||
| Enterprise | T1558 | Steal or Forge Kerberos Tickets |
Enable AES Kerberos encryption (or another stronger encryption algorithm), rather than RC4, where possible.[6] |
|
| .002 | Silver Ticket |
Enable AES Kerberos encryption (or another stronger encryption algorithm), rather than RC4, where possible.[6] |
||
| .003 | Kerberoasting |
Enable AES Kerberos encryption (or another stronger encryption algorithm), rather than RC4, where possible.[6] |
||
| .004 | AS-REP Roasting |
Enable AES Kerberos encryption (or another stronger encryption algorithm), rather than RC4, where possible.[6] |
||
| Enterprise | T1552 | Unsecured Credentials |
When possible, store keys on separate cryptographic hardware instead of on the local system. |
|
| .004 | Private Keys |
When possible, store keys on separate cryptographic hardware instead of on the local system. |
||
| Enterprise | T1550 | .001 | Use Alternate Authentication Material: Application Access Token |
File encryption should be enforced across email communications containing sensitive information that may be obtained through access to email services. |
References
- US-CERT. (2017, June 5). Reducing the Risk of SNMP Abuse. Retrieved October 19, 2020.
- Metcalf, S. (2015, January 19). Attackers Can Now Use Mimikatz to Implant Skeleton Key on Domain Controllers & BackDoor Your Active Directory Forest. Retrieved February 3, 2015.
- Metcalf, S. (2015, December 31). Cracking Kerberos TGS Tickets Using Kerberoast – Exploiting Kerberos to Compromise the Active Directory Domain. Retrieved March 22, 2018.