Ibrahim Saud
@tektrixIndiaCompletionist
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11,679 detections
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This rule detects the use of the 'Add-MpPreference' PowerShell cmdlet with the '-ExclusionPath' argument to add specific file or directory paths to Microsoft Defender's exclusion list. This behavior is a common technique used by adversaries to bypass security controls by ensuring malicious tools or scripts are not scanned by Windows Defender. The rule specifically alerts on exclusions related to common staging areas or specific tools such as Telegram Desktop, SSH cache folders, and package management directories.
This rule detects potentially malicious Android activity targeting financial and messaging applications (WeChat, Alipay). It monitors for suspicious app installation, abuse of Android accessibility services, and unauthorized overlay window activity which are common techniques used by banking trojans for credential theft and unauthorized transaction interception.
This rule detects potential Device Code Phishing (OAuth 2.0 device authorization) attempts by monitoring HTTP requests to the Microsoft device authorization endpoint (login.microsoftonline.com/common/oauth2/deviceauth) that originate from a suspicious referrer domain ending in .de. This behavior is indicative of an attacker-controlled landing page directing users to authenticate their device.
This rule monitors for outbound TCP traffic from internal hosts to a specific IP address (212.34.141.103) on port 4521, which is associated with C2 beaconing behavior, potentially involving the abuse of MSBuild.exe as a LOLBin.
This rule detects network communication patterns indicative of the Kimsuky threat group using compromised WordPress sites hosted on wasmer.app for command and control (C2). It specifically looks for established HTTP requests to the .wasmer.app domain, targeting a specific WordPress uploads path and a unique token format in the URI string.
Detects anomalous data exfiltration activity to Dropbox API, specifically utilizing a naming convention in the file path ('_lns/') often associated with Kimsuky threat actor tools. The rule monitors HTTP POST requests to content.dropboxapi.com with characteristic 'Dropbox-API-Arg' header values and TLS SNI indicators.
This rule detects two suspicious activities: first, the execution of 'conhost.exe' with a headless command line argument containing 'cmd /c echo' and either a '.tmp' file reference or a suspicious base64-like encoded string, initiated by explorer.exe or cmd.exe. Second, it identifies the presence of '.lnk' shortcut files within common user-writable directories such as Downloads, Desktop, or Public folders, which is a common indicator of staging or persistence.
This rule monitors process creation events for suspicious activity, specifically detecting two patterns: 1) The creation of a scheduled task named 'OneDrive KeepAlive' using schtasks.exe, which is indicative of persistence mechanisms masquerading as legitimate software, and 2) Execution of the 'taskhostw.exe' binary with command-line arguments 'exec' and 'hide', which is a common indicator of the NirCmd utility being renamed and used for stealthy execution.
Detects instances where Windows Terminal (WindowsTerminal.exe) is launched by Explorer and immediately spawns a shell process (PowerShell, PWSH, or CMD), specifically excluding devices that have recorded recent RunMRU registry history. This pattern may indicate suspicious or non-interactive execution by an adversary attempting to bypass traditional shell history tracking.
Detects the use of nodejs.exe to initiate external network tunnels to known tunneling services like pinggy.io or generic tunnels using common tunnel configuration flags.
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