Activity may be from interactive login sessions or process ownership from accounts being used to execute binaries on a remote system as a particular account. Examples: one account logged into multiple systems simultaneously multiple accounts logged into the same machine simultaneously accounts logged in at odd times or outside of business hours. Look for suspicious account behavior across systems that share accounts, either user, admin, or service accounts.
#Alternote upload limit password#
Monitor for third-party application logging, messaging, and/or other artifacts that may use alternate authentication material, such as password hashes, Kerberos tickets, and application access tokens, in order to move laterally within an environment and bypass normal system access controls.
#Alternote upload limit windows#
Monitor requests of new ticket granting ticket or service tickets to a Domain Controller, such as Windows EID 4769 or 4768, that may use alternate authentication material, such as password hashes, Kerberos tickets, and application access tokens, in order to move laterally within an environment and bypass normal system access controls. Do not allow a domain user to be in the local administrator group on multiple systems. Limit credential overlap across systems to prevent the damage of credential compromise and reduce the adversary's ability to perform Lateral Movement between systems.Įnforce the principle of least-privilege.
įoggyWeb can allow abuse of a compromised AD FS server's SAML token. By stealing alternate authentication material, adversaries are able to bypass system access controls and authenticate to systems without knowing the plaintext password or any additional authentication factors.ĪPT29 used forged SAML tokens that allowed the actors to impersonate users and bypass MFA, enabling APT29 to access enterprise cloud applications and services. Because the alternate authentication must be maintained by the system-either in memory or on disk-it may be at risk of being stolen through Credential Access techniques.
Ĭaching alternate authentication material allows the system to verify an identity has successfully authenticated without asking the user to reenter authentication factor(s). Alternate authentication material may also be generated during the identity creation process. Alternate authentication material is legitimately generated by systems after a user or application successfully authenticates by providing a valid identity and the required authentication factor(s).
Adversaries may use alternate authentication material, such as password hashes, Kerberos tickets, and application access tokens, in order to move laterally within an environment and bypass normal system access controls.Īuthentication processes generally require a valid identity (e.g., username) along with one or more authentication factors (e.g., password, pin, physical smart card, token generator, etc.).
0 kommentar(er)
