Ibrahim Saud
@tektrixIndiaCompletionist
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11,679 detections
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Detects the execution of batch files that perform multiple actions to impair or disable security tools, including Windows Defender, Sysmon, Filebeat, and IIS logging components. The rule monitors for a pattern of suspicious process commands (stop, config, delete, kill, Set-MpPreference) originating from a .bat file, flagging hosts where two or more distinct impairment actions are executed by the same parent process.
Detects attempts to clear Windows Event Logs using common utilities like 'wevtutil' or 'Clear-EventLog', or execution triggered by batch scripts (e.g., i.bat), which is often associated with adversaries attempting to remove evidence of their activities.
This rule detects the creation or modification of .aspx or .php files within a 'wwwroot/images' directory, specifically where the time difference between consecutive creation events for the same file path exceeds 24 hours (86400 seconds). This behavior is often associated with the placement of web shells or backdoors in web server directories, where adversaries attempt to masquerade malicious scripts as image files.
Detects instances where a process executes multiple system enumeration commands (Defender status, service query, product enumeration, or process listing) within a short window, often associated with reconnaissance activity.
Detects execution of virtualization-related tools and PowerShell cmdlets (New-VM, New-VHD) indicative of hypervisor management activities on Windows hosts. The rule monitors for processes such as vmconnect.exe, vmrun.exe, vmware.exe, and vmwp.exe, or specific PowerShell commands, excluding activity initiated by system-level accounts.
Detects execution of WinSCP.exe followed by network connections to standard SFTP (port 22) or SCP (port 115) ports. This rule aggregates command-line activity and network connection data to identify potential file transfer or exfiltration operations initiated by the WinSCP utility.
Detects the use of WMIC to interact with the MSFT_MpPreference WMI namespace to add folder or file extension exclusions to Microsoft Defender. This technique is often used by attackers to exempt malicious files or tools from being scanned by security software.
Detects the execution of the NetSupport RAT client process (client32.exe). This tool is often abused by threat actors for remote control, frequently deployed following social engineering lures such as ClickFix or BitB (Browser-in-the-Browser) attacks.
Detects the execution of WinRAR or rar.exe with command-line arguments specifying password protection or outputting to common staging directories. This behavior is frequently associated with attackers staging and compressing sensitive data prior to exfiltration.
Detects potential CastleLoader delivery by monitoring for suspicious child process executions (e.g., PowerShell, cmd, mshta, wscript, cscript) spawned directly by common browser or email client parent processes. This behavior is indicative of a user interacting with a malicious phishing link or attachment as part of a malware delivery chain.
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