Ibrahim Saud
@tektrixIndiaCompletionist
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11,679 detections
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Detects the creation of scheduled tasks (via Event ID 4698 or schtasks.exe) involving suspicious action paths, encoded PowerShell commands, LOLBins, or tasks configured to run as SYSTEM by non-administrator users, which is a common persistence mechanism for malware.
Detects the creation of scheduled tasks using Event ID 4698 or command-line execution of schtasks.exe. The rule specifically looks for tasks created in suspicious paths such as AppData or ProgramData, or tasks configured to run with highest privileges and/or marked as hidden, which are common indicators of persistence mechanisms used by adversaries.
Detects anomalous Kerberos service ticket (TGS) requests or successful logons where the corresponding Ticket Granting Ticket (TGT) request (Event ID 4768) is absent within the monitored window. This pattern is a primary indicator of offline-forged Kerberos tickets, such as those generated by Mimikatz, which bypass legitimate KDC interaction for ticket issuance.
Detects lateral movement techniques leveraging Windows Management Instrumentation (WMI). The rule identifies instances where the WMI provider host, WmiPrvSE.exe, spawns common administrative or interactive shell tools (e.g., cmd.exe, powershell.exe). This pattern is consistent with the abuse of Win32_Process.Create() via WMI/DCOM/RPC for remote command execution, a method frequently utilized by frameworks like Impacket (wmiexec.py) for fileless, agentless lateral movement.
Detects unauthorized usage of the DS-Replication-Get-Changes and DS-Replication-Get-Changes-All extended rights, which are required for the DCSync technique. The rule monitors for Windows Event ID 4662 (Object Access) where a non-domain controller account attempts these replication operations, typically indicative of credential dumping and domain compromise.
This rule detects the use of native Windows utilities (vssadmin, wmic, wbadmin, bcdedit) to perform actions associated with ransomware, such as deleting volume shadow copies, deleting the backup catalog, or disabling system recovery features. This is a common precursor to data encryption to prevent the user from restoring files.
This rule detects potential illicit consent grants to OAuth applications within Azure AD. It identifies applications requesting high-risk scopes (such as Mail.Read, Files.ReadWrite.All, etc.) that are not verified by a publisher, are granted by non-admin users, and subsequently exhibit high volumes of graph API calls (suggestive of unauthorized data access or exfiltration).
Detects the abuse of signed Windows system binaries (LOLBins: certutil, mshta, regsvr32, rundll32, bitsadmin, msiexec) through the identification of command-line arguments that suggest malicious activity, such as downloading remote content, decoding files, executing scriptlets, or loading DLLs from temporary storage directories.
Detects attempts to bypass the Antimalware Scan Interface (AMSI) in PowerShell. The rule looks for command-line arguments referencing AMSI-related memory structures, methods, and DLLs such as AmsiUtils, AmsiScanBuffer, AmsiInitFailed, and amsi.dll. Bypassing AMSI is a common technique used by attackers to execute malicious scripts and deploy fileless payloads, such as Cobalt Strike or Sliver, while avoiding detection by endpoint security solutions.
Detects the use of data archival utilities (7zip, WinRAR) or command-line cloud synchronization tools (Rclone) to stage files in common temporary directories, immediately followed by network connections to known cloud storage endpoints. This pattern is characteristic of pre-encryption exfiltration activities often seen in ransomware campaigns.
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