Ibrahim Saud
@tektrixIndiaCompletionist
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11,679 detections
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Detects the spawning of cmd.exe, powershell.exe, or powershell_ise.exe by the WMI Provider Host (wmiprvse.exe). This pattern is frequently used for fileless lateral movement, as threat actors leverage WMI (Win32_Process.Create) to execute remote commands which manifests as wmiprvse.exe launching a shell on the target host.
Detects attempts to bypass the Antimalware Scan Interface (AMSI) in PowerShell by monitoring script block logs for specific patterns used to disable or manipulate memory scanning mechanisms, a common precursor to executing malicious, memory-resident payloads.
Detects the use of native Windows utilities such as vssadmin, ntdsutil, or diskshadow to create volume shadow copies for the purpose of accessing or extracting the ntds.dit Active Directory database file. This activity is a common indicator of credential theft attempts where adversaries bypass file access protections to offline-process the database and retrieve password hashes.
Detects unauthorized access attempts to SYSTEM-level processes (winlogon.exe, services.exe) using specific access rights such as PROCESS_DUP_HANDLE or PROCESS_QUERY_INFORMATION. This behavior is indicative of token stealing or impersonation attempts often utilized by tools like JuicyPotato, RoguePotato, and PrintSpoofer to escalate privileges to SYSTEM.
Detects potential process injection attempts where a browser or Office application attempts to write to the memory or create a remote thread within high-value or trusted system processes like svchost.exe or explorer.exe. This activity is indicative of defense evasion techniques such as DLL or PE injection.
Detects suspicious process access to the Local Security Authority Subsystem Service (lsass.exe) with access masks commonly associated with credential dumping techniques. The rule specifically monitors for high-privileged access requests by unauthorized processes, excluding known legitimate tools and system services, to identify attempts to extract cached authentication materials such as NTLM hashes or Kerberos tickets.
Detects the creation or connection of named pipes that match known default and common malleable C2 profile patterns used by the Cobalt Strike post-exploitation framework. These named pipes are frequently utilized by Cobalt Strike beacons for inter-process communication, SMB/TCP beacon functionality, and staging during post-exploitation activities.
This rule monitors for an abnormally high number of Kerberos Ticket Granting Service (TGS) requests using the RC4-HMAC encryption type (0x17) from a single IP address to various service accounts. This pattern is indicative of Kerberoasting, a technique where attackers attempt to obtain service tickets to crack service account passwords offline.
Detects instances where a process attempts to access the memory of the Local Security Authority Subsystem Service (LSASS.exe) with suspicious access rights often associated with credential dumping. The rule excludes known benign processes such as antivirus and debugging tools.
Detects the creation or modification of scheduled tasks that exhibit suspicious characteristics, such as using common temporary directories, executing PowerShell with encoded commands, running tasks as SYSTEM, or using tasks that attempt to hide by using unusual naming conventions. These techniques are often used by adversaries to establish persistence or facilitate execution in a stealthy manner.
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