Ibrahim Saud
@tektrixIndiaCompletionist
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11,679 detections
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Detects spearphishing activity involving project-related lure archives, subsequent file drops of potentially malicious DLLs and executables (sideloading indicators), and the execution of processes masquerading as the lure documents.
Detects potential data exfiltration by monitoring interpreter processes (Python, Node.js) that access sensitive local credential/configuration files and subsequently connect to known cloud storage or code repository APIs (Dropbox, GitHub, Google Cloud). The rule correlates file access events with network connection activity.
Detects instances where scripting engines (Python or Node.js) access known SSH private key files and subsequently initiate a successful network connection to a non-private IP address within a 60-second window. This behavior is indicative of potential credential exfiltration or unauthorized remote access.
This rule detects potential developer workstation compromise by monitoring for suspicious child process creation (shells/interpreters) from common development tools (Code.exe, node.exe, python.exe) followed by subsequent authentication to cloud environments (Azure, AWS, or GCP) within a 60-minute window. This behavior is indicative of a developer's machine being compromised to harvest session tokens or credentials to access cloud resources.
Detects potential identity pivoting by correlating signs of developer workstation compromise (e.g., shell spawning from IDE/node processes) with subsequent anomalous cloud console or API access from the same or associated identity within a short timeframe. This rule monitors both Azure Sign-in logs and AWS CloudTrail activity for suspicious patterns following endpoint indicators.
Detects instances where the Visual Studio Code process (code.exe) spawns shell or scripting interpreters (such as cmd.exe, powershell.exe, python.exe, etc.) to execute commands involving sensitive file paths, development configuration files, or suspicious keywords, specifically within a short duration (5 minutes) after Git or NPM activity has occurred on the same host. This pattern may indicate exploitation or unauthorized code execution triggered through a compromised or malicious development environment.
This rule detects attempts by the PowerShell process to bypass the Antimalware Scan Interface (AMSI) by patching the amsi.dll in memory. Specifically, it looks for 'WriteProcessMemoryApiCall' events targeting 'powershell.exe' where 'amsi.dll' has been loaded into the process's memory space. This technique is often used by malware, such as Potemkin Loader, to evade detection.
This rule detects the creation of specific temporary directories following a pattern often used by installers or malware, and the subsequent writing of 'wermgr.exe' (Windows Error Reporting manager) into these temporary locations. This behavior is indicative of potential masquerading or process hijacking attempts, where a malicious executable is disguised as a legitimate Windows process by operating from an unexpected, temporary directory.
Detects instances where the Windows Error Reporting process (wermgr.exe) attempts to open files located within a Volume Shadow Copy path. This behavior is atypical and may indicate an attempt to access sensitive files from a shadow copy, a technique often used in credential dumping or discovery activities.
Detects the execution of interactive shell or scripting processes (e.g., cmd.exe, powershell.exe, wscript.exe) directly or indirectly spawned by the Microsoft Defender service (MsMpEng.exe). The rule identifies processes running at SYSTEM integrity in an interactive user session, which is indicative of a TOCTOU exploit against the Defender quarantine pipeline.
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