Detections
Explore public detection logic contributed by the community across SIEM and rule languages.
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Detects the execution of known Remote Monitoring & Management (RMM) software on Windows systems. This behavior is frequently abused by threat actors, including Scattered Spider, to maintain persistent access after gaining control via social engineering or identity-based attacks (e.g., vishing-driven credential or MFA resets).
Detects the assignment of high-privileged Entra ID roles to a user account shortly after that same account underwent a password reset or MFA method change initiated by a helpdesk-privileged account. This detection pattern is specifically designed to identify Scattered Spider (UNC3944) tactics where social engineering is used to manipulate helpdesk processes to compromise identities and escalate privileges.
This rule detects a potential vishing attack by correlating suspicious IT helpdesk requests (e.g., password or MFA reset without manager approval or verified callback) with subsequent sensitive Entra ID identity changes (e.g., self-service password resets, MFA device registration, or new device registration) occurring for the same user within a short time window. This activity is indicative of an attacker attempting to social-engineer helpdesk staff to bypass authentication controls and compromise a user account.
Detects a suspicious sequence of identity-related operations performed by a single user within a 2-hour window. The chain consists of a password reset, MFA method modification, new device registration, and a subsequent privilege escalation event (such as role assignment or application consent). This pattern is consistent with helpdesk-vishing campaigns often used by threat actors like Scattered Spider to perform full 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 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 instances where an account assigned a help-desk or support role performs an MFA, password, or credential reset on an account tagged as an executive or VIP. This behavior is indicative of social engineering and help-desk impersonation attacks commonly utilized by threat actors to perform rogue MFA takeovers.
Detects MFA or credential reset activities on high-value or privileged accounts that lack a corresponding out-of-band verification signal, such as manager approval or identity proofing, within a one-hour window. This behavior is indicative of social engineering attempts where attackers manipulate help-desk procedures to bypass identity protections.
Detects suspicious help-desk activity where a user password is reset by an administrator followed shortly by a new MFA factor being enrolled for that same user. This pattern is characteristic of Scattered Spider-style social engineering and vishing attacks to bypass MFA without deploying malware.
Detects suspicious help-desk activity where a user password is reset by an administrator followed shortly by a new MFA factor being enrolled for that same user. This pattern is characteristic of Scattered Spider-style social engineering and vishing attacks to bypass MFA without deploying malware.
Detects a suspicious correlation where an employee's phone number undergoes a SIM change or number reassignment event, immediately followed by a successful login using SMS-based MFA for the same identity. This pattern is indicative of SIM swapping/hijacking attacks, often used by threat actors like Scattered Spider to bypass SMS-based multi-factor authentication.
Detects an Azure AD/Entra ID device registration or join event occurring within 60 minutes of an account-recovery action (password reset, MFA reset, or account unlock) for the same user identity. This sequence is indicative of an attacker registering a managed device to maintain persistent, long-term access following a successful account takeover or vishing-based helpdesk credential reset.
This rule detects a potential vishing attack by correlating suspicious IT helpdesk requests (e.g., password or MFA reset without manager approval or verified callback) with subsequent sensitive Entra ID identity changes (e.g., self-service password resets, MFA device registration, or new device registration) occurring for the same user within a short time window. This activity is indicative of an attacker attempting to social-engineer helpdesk staff to bypass authentication controls and compromise a user account.
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 high-risk identity modifications (password or MFA resets) following an IT helpdesk ticket that lacks mandatory security controls, such as callback verification, manager approval, or established ticket history. This behavior is indicative of vishing and social engineering attacks aimed at helpdesk personnel to compromise user accounts.
Detects instances where an account assigned a help-desk or support role performs an MFA, password, or credential reset on an account tagged as an executive or VIP. This behavior is indicative of social engineering and help-desk impersonation attacks commonly utilized by threat actors to perform rogue MFA takeovers.
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 high-risk identity modifications (password or MFA resets) following an IT helpdesk ticket that lacks mandatory security controls, such as callback verification, manager approval, or established ticket history. This behavior is indicative of vishing and social engineering attacks aimed at helpdesk personnel to compromise user accounts.
Detects high-frequency MFA factor updates, resets, activations, deactivations, or deletions for a single user within a 30-minute window. This behavior often indicates an adversary attempting to compromise or take control of account authentication mechanisms after gaining initial access.
Detects high-frequency MFA factor updates, resets, activations, deactivations, or deletions for a single user within a 30-minute window. This behavior often indicates an adversary attempting to compromise or take control of account authentication mechanisms after gaining initial access.
This rule detects DNS queries to domains associated with tunneling tools (Ngrok, Tailscale) and Remote Monitoring and Management (RMM) tools (FleetDeck, TacticalRMM, Level.io, Pulseway, ScreenConnect, Splashtop, RustDesk, Atera, Remcos) known to be used by threat actors like Scattered Spider/Muddled Libra for covert persistent connectivity, remote access, and lateral movement. The rule categorizes the detected tools into 'Tunneling' or 'RMM'.
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