Ibrahim Saud
@tektrixIndiaCompletionist
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This rule detects potentially malicious Microsoft Graph API activity, such as the enumeration of directory roles, groups, applications, or service principals. It identifies patterns indicative of token theft or unauthorized access by flagging scripted clients (non-browser agents) or accounts showing anomalous behavior (multiple IPs/agents) performing rapid or repetitive enumeration queries.
Detects the initiation of the OAuth 2.0 Device Authorization Grant flow via command-line arguments within standard web browsers. This flow is frequently exploited in phishing campaigns to obtain unauthorized access tokens by tricking users into entering a device code on a malicious or attacker-controlled authorization page.
Detects successful authentication events associated with the Azure AD Device Registration Service (resource ID 01cb2876-7ebd-4aa4-9cc9-d28bd4d359a9). This rule identifies successful registrations or sign-ins to the service, which may be leveraged by adversaries to register unauthorized devices for persistent access or to bypass conditional access policies.
Detects the creation of a shortcut (.lnk) file by the process 'OrionQuests-Setup.exe'. This activity is often associated with installers or applications placing shortcuts on the desktop or in startup folders for persistence or execution initiation.
Detects suspicious PE files that masquerade as Mozilla Firefox by using Firefox-related product names and metadata, but lack valid Mozilla Corporation code-signing signatures and are located within the ProgramData directory.
Detects the execution of PowerShell from a shortcut (.lnk) file, particularly when suspicious command-line arguments such as hidden windows, encoded commands, or bypass flags are utilized. This pattern is commonly associated with initial access via malicious attachments or shortcut files.
Detects a malicious browser helper DLL (Rapuncel) that attempts to inject into web browsers like Chrome and Edge. The rule identifies code that interacts with the browser's Elevation Service 'DecryptData' method, a technique used to bypass app-bound encryption, potentially to extract sensitive information like stored credentials.
Detects network traffic associated with the SloppyRAT backdoor, which utilizes a reverse SOCKS proxy mechanism. The rule identifies specific HTTP GET/POST heartbeats and command responses to the '/api/poll' and '/api/proxy/ack' endpoints commonly used for C2 operations.
Detects Python processes (python.exe, python3.exe, pythonw.exe) performing DNS resolution for Microsoft identity, device login, or Graph API endpoints. This activity is consistent with automated tooling, such as python-requests, performing device-code flow polling or API token authentication within an environment.
This rule detects modifications to the Windows hosts file by unauthorized processes. The hosts file is often targeted by adversaries to redirect network traffic, intercept communications, or prevent access to security-related websites.
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