Ibrahim Saud
@tektrixIndiaCompletionist
2 followers18,458 downloads7,120 copies47 likes38,585 views
11,679 detections
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Detects the use of common Windows command-line utilities (powershell.exe, cmd.exe, bitsadmin.exe, curl.exe) executing files from common temporary directories (%TEMP%, %tmp%). The rule flags execution involving hidden windows, specific file names (flt.bin, FLTLIB.dll, etc.), or known C2 IP addresses.
Detects anomalous network traffic patterns from SOHO/IoT and edge devices indicative of Tor-based C2 communication, including DNS queries for .onion domains, outbound connections to known Tor relay ports, and high-volume encrypted traffic over non-standard high-range ports.
Detects the execution of PowerShell via WScript or CScript (ActiveX Scripting hosts) where the PowerShell command line includes suspicious arguments typically used for obfuscation, bypassing security policies, or launching payloads from the ProgramData directory.
This rule detects instances where common web server processes (e.g., httpd, nginx) or system utility services (e.g., sshd, crond, dropbear) spawn shell processes like bash, sh, or ash. This activity is a classic indicator of potential remote command execution (RCE) via web application exploits or the abuse of legitimate system services to run arbitrary commands.
Detects the execution of PowerShell via wscript.exe or cscript.exe, often indicative of malicious VBScript or JScript files executing obfuscated or hidden payloads. The rule checks for specific PowerShell arguments (e.g., -windowstyle hidden, -noni, -decode) or references to the ProgramData directory in the command line.
Detects high-velocity port scanning bursts from a single source IP address targeting multiple destinations, often indicative of botnet reconnaissance activity such as the JDY botnet used to identify edge devices vulnerable to specific exploits like CVE-2026-35616.
Detects the use of Windows command shell (cmd.exe or powershell.exe) to delete specific files often associated with malicious staging, temporary artifacts, or software components like drivers and configuration files. It specifically flags recursive or forced deletion commands targeting directories such as Temp, ProgramData, or specific filenames commonly used by malware.
Detects the use of the built-in Windows rundll32.exe utility to call the MiniDump function within comsvcs.dll, a known technique for dumping the memory contents of the Local Security Authority Subsystem Service (LSASS). The rule specifically flags executions that write to the Windows\Temp directory, which is a common indicator of unauthorized credential harvesting attempts.
Detects the use of the PostgreSQL client utility (psql.exe) to query the 'VeeamBackup' database, a technique observed in Akira ransomware intrusions to extract sensitive credentials directly from the backup server's configuration.
Detects the execution of wbadmin.exe to initiate a backup that specifically targets the NTDS.dit database and registry hives (SYSTEM, SECURITY), then stages them to a path on C:\ProgramData. This pattern is characteristic of credential dumping activities associated with the Akira ransomware, enabling offline extraction of domain credentials.
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