Ibrahim Saud
@tektrixIndiaCompletionist
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11,679 detections
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Detects behavioral patterns associated with the Everest ransomware loader, specifically the execution of a .NET host process from a non-standard parent, potentially indicating process injection, combined with network activity indicative of lateral movement or discovery, such as Wake-on-LAN packets or SMB scanning.
Detects a suspicious pattern where a high volume of security, backup, or antivirus services and processes are terminated on a host in a short time window, followed by extensive file modification activity. This behavior is highly indicative of pre-encryption preparations by ransomware, specifically patterns observed by the Everest group, intended to neutralize defenses and prevent restoration before encrypting files.
Detects unauthorized modifications to Microsoft Entra Conditional Access (CA) policies, including deleting policies, disabling them, removing MFA requirements, or excluding specific users. These actions are common techniques used by adversaries to establish persistence or facilitate unauthorized access by weakening security controls.
Detects the addition of a Service Principal to an Azure AD group that has the 'isAssignableToRole' property set to true. This behavior is a known privilege escalation technique where the service principal inherits the privileged roles assigned to that group, bypassing standard direct role-assignment monitoring.
This rule detects scenarios where an external user is invited to an Azure AD tenant and subsequently granted a highly privileged role (such as Global Administrator or User Administrator) within a short window of time (1 hour). This pattern is indicative of potential persistence establishment or privilege escalation by an adversary using guest accounts.
Detects instances where a user grants an OAuth application consent to high-risk scopes (such as mail reading, file access, or directory reading) without administrator oversight. This behavior is a common indicator of OAuth abuse where an attacker lures a user into granting excessive permissions to a malicious application, providing the attacker persistent access to the user's data.
Detects modifications to federated domain authentication, identity provider trusts, or federation settings in cloud environments (e.g., Entra ID, Okta). Unauthorized changes to these configurations can be used to establish persistence, enable SAML token forgery, or bypass Multi-Factor Authentication (MFA).
Detects suspicious modifications to Google Cloud Platform compute instance metadata, specifically the enabling of serial ports or the addition of startup scripts, which can be leveraged to execute arbitrary commands on a virtual machine. This rule also monitors for the initiation of GCP Cloud Shell environments, which may be used as a platform for further administrative activity.
Detects unauthorized processes attempting to read or create sensitive browser credential files ('Login Data', 'Web Data', 'Cookies', 'logins.json', 'key4.db'). This activity is commonly associated with information-stealing malware (such as Lumma, StealC, Vidar, RedLine, and Amadey) that targets browser databases to extract stored secrets, often bypassing standard browser process access.
Detects the creation or modification of Microsoft 365/Exchange inbox rules that suggest malicious staging or exfiltration activities. This includes rules configured for external email auto-forwarding, automatic deletion of messages, or movement of emails into hidden/system folders (e.g., RSS Subscriptions, Archive) which may be filtered based on sensitive keywords related to financial or credential theft (e.g., invoice, wire, payment).
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