Ali AlEnezi
@siteCompletionist
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78 detections
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Detects HTTP requests containing JNDI lookup patterns commonly associated with the Log4Shell (CVE-2021-44228) vulnerability exploitation, where an attacker attempts to force an application to execute remote code via Java Naming and Directory Interface (JNDI) injection.
This rule detects HTTP requests that contain duplicate 'Content-Length' headers, a technique used to perform HTTP Request Smuggling attacks. Attackers exploit discrepancies in how front-end and back-end servers interpret duplicate or conflicting request headers to smuggle requests, bypass security controls, or gain unauthorized access to back-end systems.
Detects established SSH network connections originating from the internal network to external destinations on ports other than the standard port 22. This behavior is often associated with unauthorized SSH tunneling or command-and-control (C2) communication intended to bypass standard firewall egress filtering.
Detects HTTP POST requests targeting Cisco Firepower Management Center (FMC) that contain strings associated with internal service account processes or configuration files, indicative of an attempt to exploit CVE-2026-20316.
Detects unauthorized HTTP Basic authentication attempts targeting Cisco Firepower Management Center (FMC) using hardcoded service account credentials associated with CVE-2026-20316.
Detects outbound TLS traffic to known remote access and management software domains (e.g., ScreenConnect, AnyDesk, TeamViewer), which are frequently abused by adversaries for establishing Command and Control (C2) channels.
This rule monitors for Exchange administration operations where mailbox permissions ('FullAccess', 'SendAs', or 'SendOnBehalf') are granted to a user. It specifically flags instances where the account performing the action is neither the owner of the target mailbox nor the grantee, identifying suspicious, potentially unauthorized delegation patterns.
Detects a single user account downloading or accessing a high volume of files (more than 50) within a 15-minute window from SharePoint or OneDrive. This behavior often indicates automated data collection, potential mass exfiltration, or a compromised user account account accessing sensitive files in bulk.
This rule detects potentially unauthorized mailbox content exports within Microsoft 365, including the creation of mailbox export requests, PST-related compliance searches, and the downloading of exported search results. These activities are common precursors to data exfiltration.
Detects outbound network traffic containing cleartext Windows command shell banners, which is highly indicative of a reverse shell connection where a remote attacker has established interactive command-line access to a compromised host.
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