Ibrahim Saud
@tektrixIndiaCompletionist
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11,679 detections
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Detects ISO or ZIP archive files containing a specific combination of a LNK file named 'My Resume.pdf.lnk' and a 'doxc' directory. This specific file structure is associated with Transparent Tribe (APT36) activity used to deliver malicious payloads via social engineering lures.
Detects network communication patterns associated with the RUSTYSHADE malware family, which leverages the GitHub REST API for command-and-control (C2) operations. The rule monitors for specific SNI indicators, GitHub API URL patterns for command retrieval, task/result file interactions, exfiltration of files (screenshots/webcam photos), and custom encrypted request body markers.
Detects the use of the Windows 'net' or 'net1' utility to connect to the hidden 'IPC$' inter-process communication share. This behavior is often associated with lateral movement, reconnaissance, or establishing authenticated sessions to remote systems for further malicious activity, such as remote command execution.
This rule logs the execution of 'UBPUpdater.exe'. While the purpose of this binary is not inherently malicious, tracking its execution can be useful for auditing software updates or identifying unauthorized applications running on the system.
This rule monitors network traffic to GitHub API endpoints and categorizes the activity based on APT36's known operational window (weekdays, 04:00-11:00 UTC). Traffic patterns deviating from this schedule are flagged as anomalous, helping to identify potential C2 communication outside of established threat actor activity windows.
Detects instances where a process named UBP.Exe spawns a child process named HTSPnew.Exe, specifically when both binaries reside within the same directory path containing 'UBP'. This behavior may indicate an application-specific pattern or potentially malicious execution where one component of a suite invokes another.
Detects instances where cmd.exe or wscript.exe are executed from explorer.exe or via a .lnk file, which is a common pattern for initial access and execution of malicious payloads, often seen in spearphishing scenarios involving obfuscated or disguised files.
This rule detects potential ransomware activity by monitoring for specific file naming patterns associated with known ransom notes (.krsid, README_KRSID.Txt) and the execution of suspicious processes (HTSPnew.Exe, UBPUpdater.exe).
Detects execution of processes associated with QuasarRAT or references to its configuration files, originating from or involving files and processes named 'UBPUpdater.exe' or 'UBPPatch.Psh'. Also identifies network connections via FTP or involving configuration files ('config.Ini') initiated by these specific processes, which may indicate malicious activity, command and control, or data exfiltration.
This rule detects potentially malicious file manipulation activities, such as renaming, moving, copying, or deleting files, specifically when involving targeted filenames (e.g., 'GymTraniningShedule.exe') or locations (e.g., 'SystemFolder32'). The detection monitors for suspicious command-line arguments executed by 'cmd.exe' or 'conhost.exe' and cross-references them with file deletion events involving '.lnk' files or specific application artifacts.
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