Ibrahim Saud
@tektrixIndiaCompletionist
2 followers18,458 downloads7,120 copies47 likes38,570 views
11,679 detections
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Detects HTTP POST requests directed at 'relay.php' that contain a hardcoded Authorization Bearer token ('crpx0_c2_2026') used by the CRPx0 ransomware. This activity indicates a compromised host is actively beaconing to C2 infrastructure for command execution, key exchange, or data exfiltration.
Detects host and user discovery commands (whoami, hostname, systeminfo, wmic) executed within a 15-minute window following a suspected CRPx0 ransomware execution event, identified by either encoded PowerShell or curl-to-bash activity.
Detects potential lateral movement activity associated with the CRPx0 propagation technique. The rule monitors for WmiPrvSE.exe spawning unusual child processes (indicative of remote Win32_Process.Create execution) which are concurrently correlated with outbound network activity from the same host.
Detects the use of administrative utilities like chmod, chown, and setfacl to modify file permissions on paths or commands related to Acronis, cPanel, WHM, or Plesk. This activity could indicate an attempt to manipulate system or application binaries to facilitate privilege escalation or persistence.
This rule detects file creation or modification events within the WordPress plugin directory for 'admin-menu-editor-pro'. Given that WordPress plugins are frequent targets for web shell placement, this rule monitors for unauthorized changes to the plugin's file structure, which may indicate an attempt to gain persistence or remote code execution on the web server.
Detects file-related operations (creation, modification, renaming, or deletion) performed on files containing 'acronis' or 'backup' in their path, executed by a process associated with Acronis, running under highly privileged system contexts (root or SYSTEM). This activity is indicative of potential unauthorized manipulation or disabling of backup software, commonly seen in ransomware attacks to inhibit recovery.
Detects high-frequency access requests to SharePoint or OneDrive services using the 'python-httpx' library. This behavior is indicative of automated scraping or mass data retrieval often associated with malicious actors or unauthorized automated tools.
Detects successful authentication events in Microsoft Entra ID (formerly Azure AD) that utilize the 'device code' OAuth flow. This flow is often used by command-line utilities and headless applications to authenticate users on devices without a web browser, but it is also frequently abused by attackers to perform phishing and session hijacking.
Detects user creation, capability granting, or role modification events occurring on WordPress sites where the Admin Menu Editor plugin (versions 2.35 or 2.36) is active and the associated user account has administrator privileges. This pattern is often indicative of exploitation of known vulnerabilities in this specific plugin to perform unauthorized administrative actions.
This rule detects DNS queries and TLS SNI traffic directed towards identified phishing or malicious domains that mimic Passkey, Single Sign-On (SSO), or help desk authentication portals. These domains are commonly used by attackers for credential harvesting or adversary-in-the-middle (AiTM) phishing attacks targeting organizational authentication services.
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