Ibrahim Saud
@tektrixIndiaCompletionist
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11,679 detections
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Detects multiple MFA push notifications generated within a short timeframe for a single user during a Self-Service Password Reset (SSPR) flow. This behavior is indicative of an attacker attempting to perform MFA fatigue/push harassment to gain unauthorized access via SSPR or to bypass account security controls.
Detects anomalous account recovery or MFA reset activity performed by a single help-desk user account. A high volume of reset actions across numerous distinct users within a short duration is a key behavioral indicator of potential help-desk account compromise or insider abuse involving unauthorized account takeovers.
Detects the execution of common remote monitoring and management (RMM) software on a host shortly after the associated user account underwent a password or MFA reset, a pattern indicative of help-desk impersonation (vishing) followed by unauthorized remote access setup.
Detects a suspicious sequence where an account undergoes a help-desk-initiated password or credential reset, followed shortly (within 30 minutes) by the registration of a new multi-factor authentication (MFA) device for that same account. This pattern is characteristic of social engineering attacks, such as those used by UNC3944/Scattered Spider, where an adversary impersonates a user to gain initial access and subsequently establishes persistence by adding an MFA device they control.
Detects a pattern of MFA fatigue or 'push-bombing' where a user receives 5 or more MFA challenge requests within 10 minutes, immediately followed by a successful authentication event. This pattern is characteristic of attackers who have obtained user credentials and are attempting to bypass MFA by repeatedly triggering push notifications until the user grants access.
Detects a suspicious sequence of administrative actions where a user's phishing-resistant multi-factor authentication (MFA) factor, such as FIDO2, passkeys, or certificates, is removed and immediately replaced by a weaker authentication method like SMS, voice call, or TOTP. This behavior, when performed by an administrator account on a different user account, is a common indicator of an MFA bypass attempt often associated with social engineering or insider threat scenarios.
Detects modifications to Entra ID Conditional Access or Okta authentication policies that introduce MFA exclusions, trusted network bypasses, or authentication-strength downgrades. This activity is highly indicative of an adversary attempting to maintain persistence or bypass MFA following a successful initial account compromise.
Detects anomalous large-volume file download or export activity from cloud repositories (SharePoint, OneDrive, or Salesforce) occurring shortly after a help-desk-mediated credential or MFA reset for the same user. This behavior is indicative of account takeover, specifically vishing-to-exfiltration patterns used by threat actors.
Detects the registration of a new MFA device or authenticator by a user shortly after a password reset event, where the registration originates from an IP address classified as a hosting provider, datacenter, or VPN. This pattern is indicative of a help-desk or vishing-based account takeover attack where an adversary registers their own MFA device to gain persistent access.
Detects a suspicious sequence of events indicating account takeover: a password reset, followed by an MFA factor re-enrollment, and concluding with a successful login from a geographically impossible location compared to recent history. This pattern often signifies a help-desk-assisted account compromise or token theft.
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